ExifInterface

java.lang.Object
- org.lasque.tusdk.core.exif.ExifInterface

```
public class ExifInterface
extends java.lang.Object
```
This class provides methods and constants for reading and writing jpeg file metadata. It contains a collection of ExifTags, and a collection of definitions for creating valid ExifTags. The collection of ExifTags can be updated by: reading new ones from a file, deleting or adding existing ones, or building new ExifTags from a tag definition. These ExifTags can be written to a valid jpeg image as exif metadata.
Each ExifTag has a tag ID (TID) and is stored in a specific image file directory (IFD) as specified by the exif standard. A tag definition can be looked up with a constant that is a combination of TID and IFD. This definition has information about the type, number of components, and valid IFDs for a tag.

另请参阅:

ExifTag

嵌套类概要

嵌套类
限定符和类型	类和说明
`static interface`	`ExifInterface.ColorSpace` Constants for `TAG_COLOR_SPACE`
`static interface`	`ExifInterface.ComponentsConfiguration` Constants for `TAG_COMPONENTS_CONFIGURATION`
`static interface`	`ExifInterface.Compression` Constants for `TAG_COMPRESSION`
`static interface`	`ExifInterface.Contrast` Constants for `TAG_CONTRAST`
`static interface`	`ExifInterface.ExposureMode` Constants for `TAG_EXPOSURE_MODE`
`static interface`	`ExifInterface.ExposureProgram` Constants for `TAG_EXPOSURE_PROGRAM`
`static interface`	`ExifInterface.FileSource` Constants for `TAG_FILE_SOURCE`
`static interface`	`ExifInterface.Flash` Constants for `TAG_FLASH` As the definition in Jeita EXIF 2.2
`static interface`	`ExifInterface.GainControl` Constants for `TAG_GAIN_CONTROL`
`static interface`	`ExifInterface.GpsAltitudeRef` Constants for `TAG_GPS_ALTITUDE_REF`
`static interface`	`ExifInterface.GpsDifferential` Constants for `TAG_GPS_DIFFERENTIAL`
`static interface`	`ExifInterface.GpsLatitudeRef` Constants for `TAG_GPS_LATITUDE_REF`, `TAG_GPS_DEST_LATITUDE_REF`
`static interface`	`ExifInterface.GpsLongitudeRef` Constants for `TAG_GPS_LONGITUDE_REF`, `TAG_GPS_DEST_LONGITUDE_REF`
`static interface`	`ExifInterface.GpsMeasureMode` Constants for `TAG_GPS_MEASURE_MODE`
`static interface`	`ExifInterface.GpsSpeedRef` Constants for `TAG_GPS_SPEED_REF`, `TAG_GPS_DEST_DISTANCE_REF`
`static interface`	`ExifInterface.GpsStatus` Constants for `TAG_GPS_STATUS`
`static interface`	`ExifInterface.GpsTrackRef` Constants for `TAG_GPS_TRACK_REF`, `TAG_GPS_IMG_DIRECTION_REF`, `TAG_GPS_DEST_BEARING_REF`
`static interface`	`ExifInterface.JpegProcess` Constants for the jpeg process algorithm used.
`static interface`	`ExifInterface.LightSource` Constants for `TAG_LIGHT_SOURCE`
`static interface`	`ExifInterface.MeteringMode` Constants for `TAG_METERING_MODE`
`static interface`	`ExifInterface.Options` Options for calling `readExif(java.io.InputStream, int)`, `readExif(byte[], int)`, `readExif(String, int)`
`static interface`	`ExifInterface.Orientation` Constants for `TAG_ORIENTATION`.
`static interface`	`ExifInterface.PhotometricInterpretation` Constants for `TAG_PHOTOMETRIC_INTERPRETATION`
`static interface`	`ExifInterface.PlanarConfiguration` Constants for `TAG_PLANAR_CONFIGURATION`
`static interface`	`ExifInterface.ResolutionUnit` Constants for `TAG_RESOLUTION_UNIT`
`static interface`	`ExifInterface.Saturation` Constants for `TAG_SATURATION`
`static interface`	`ExifInterface.SceneCapture` Constants for `TAG_SCENE_CAPTURE_TYPE`
`static interface`	`ExifInterface.SceneType` Constants for `TAG_SCENE_TYPE`
`static interface`	`ExifInterface.SensingMethod` Constants for `TAG_SENSING_METHOD`
`static interface`	`ExifInterface.SensitivityType` Constants for the `TAG_SENSITIVITY_TYPE` tag
`static interface`	`ExifInterface.Sharpness` Constants for `TAG_SHARPNESS`
`static interface`	`ExifInterface.SubjectDistance` Constants for `TAG_SUBJECT_DISTANCE`
`static interface`	`ExifInterface.WhiteBalance` Constants for `TAG_WHITE_BALANCE`
`static interface`	`ExifInterface.YCbCrPositioning` Constants for `TAG_Y_CB_CR_POSITIONING`

字段概要

字段
限定符和类型	字段和说明
`static java.nio.ByteOrder`	`DEFAULT_BYTE_ORDER`
`static int`	`DEFINITION_NULL`
`static int`	`IFD_NULL`
`protected static java.util.HashSet<java.lang.Short>`	`sBannedDefines` Tags with definitions that cannot be overridden (banned defines).
`static int`	`TAG_APERTURE_VALUE` Value is unsigned double The actual aperture value of lens when the image was taken.
`static int`	`TAG_ARTIST` Vallue is ascii String This tag records the name of the camera owner, photographer or image creator.
`static int`	`TAG_BITS_PER_SAMPLE`
`static int`	`TAG_BRIGHTNESS_VALUE` Value is signed double Brightness of taken subject, unit is EV.
`static int`	`TAG_CFA_PATTERN`
`static int`	`TAG_COLOR_SPACE` Value is int.
`static int`	`TAG_COMPONENTS_CONFIGURATION`
`static int`	`TAG_COMPRESSED_BITS_PER_PIXEL`
`static int`	`TAG_COMPRESSION` Value is unsigned int.
`static int`	`TAG_CONTRAST` Value is int.
`static int`	`TAG_COPYRIGHT` Values is ascii string Shows copyright information
`static int`	`TAG_CUSTOM_RENDERED`
`static int`	`TAG_DATE_TIME` Value is ascii string (20) Date/Time of image was last modified.
`static int`	`TAG_DATE_TIME_DIGITIZED` Value is ascii string (20) Date/Time of image digitized.
`static int`	`TAG_DATE_TIME_ORIGINAL` Value is ascii string (20) Date/Time of original image taken.
`static int`	`TAG_DEVICE_SETTING_DESCRIPTION`
`static int`	`TAG_DIGITAL_ZOOM_RATIO` Value is double.
`static int`	`TAG_EXIF_IFD`
`static int`	`TAG_EXIF_VERSION` ASCII string (4).
`static int`	`TAG_EXPOSURE_BIAS_VALUE` Value is signed double.
`static int`	`TAG_EXPOSURE_INDEX`
`static int`	`TAG_EXPOSURE_MODE` Value is int.
`static int`	`TAG_EXPOSURE_PROGRAM` Value is unsigned int.
`static int`	`TAG_EXPOSURE_TIME` Value is unsigned double Exposure time (reciprocal of shutter speed).
`static int`	`TAG_F_NUMBER` Value is unsigned double The actual F-number(F-stop) of lens when the image was taken
`static int`	`TAG_FILE_SOURCE`
`static int`	`TAG_FLASH` Value is unsigned integer The 8 bits can be extracted and evaluated in this way: Bit 0 indicates the flash firing status bits 1 and 2 indicate the flash return status bits 3 and 4 indicate the flash mode bit 5 indicates whether the flash function is present and bit 6 indicates "red eye" mode bit 7 unused Resulting Flash tag values are: 0000.H = Flash did not fire 0001.H = Flash fired 0005.H = Strobe return light not detected 0007.H = Strobe return light detected 0009.H = Flash fired, compulsory flash mode 000D.H = Flash fired, compulsory flash mode, return light not detected 000F.H = Flash fired, compulsory flash mode, return light detected 0010.H = Flash did not fire, compulsory flash mode 0018.H = Flash did not fire, auto mode 0019.H = Flash fired, auto mode 001D.H = Flash fired, auto mode, return light not detected 001F.H = Flash fired, auto mode, return light detected 0020.H = No flash function 0041.H = Flash fired, red-eye reduction mode 0045.H = Flash fired, red-eye reduction mode, return light not detected 0047.H = Flash fired, red-eye reduction mode, return light detected 0049.H = Flash fired, compulsory flash mode, red-eye reduction mode 004D.H = Flash fired, compulsory flash mode, red-eye reduction mode, return light not detected 004F.H = Flash fired, compulsory flash mode, red-eye reduction mode, return light detected 0059.H = Flash fired, auto mode, red-eye reduction mode 005D.H = Flash fired, auto mode, return light not detected, red-eye reduction mode 005F.H = Flash fired, auto mode, return light detected, red-eye reduction mode Other = reserved
`static int`	`TAG_FLASH_ENERGY`
`static int`	`TAG_FLASHPIX_VERSION`
`static int`	`TAG_FOCAL_LENGTH` Value is unsigned double Focal length of lens used to take image.
`static int`	`TAG_FOCAL_LENGTH_IN_35_MM_FILE` Value is unsigned int.
`static int`	`TAG_FOCAL_PLANE_RESOLUTION_UNIT` Value is unsigned int.
`static int`	`TAG_FOCAL_PLANE_X_RESOLUTION` Value is unsigned double.
`static int`	`TAG_FOCAL_PLANE_Y_RESOLUTION`
`static int`	`TAG_GAIN_CONTROL` Value is int.
`static int`	`TAG_GPS_ALTITUDE` Value is string.
`static int`	`TAG_GPS_ALTITUDE_REF` Value is byte Indicates the altitude used as the reference altitude.
`static int`	`TAG_GPS_AREA_INFORMATION`
`static int`	`TAG_GPS_DATE_STAMP`
`static int`	`TAG_GPS_DEST_BEARING`
`static int`	`TAG_GPS_DEST_BEARING_REF`
`static int`	`TAG_GPS_DEST_DISTANCE`
`static int`	`TAG_GPS_DEST_DISTANCE_REF`
`static int`	`TAG_GPS_DEST_LATITUDE`
`static int`	`TAG_GPS_DEST_LATITUDE_REF`
`static int`	`TAG_GPS_DEST_LONGITUDE`
`static int`	`TAG_GPS_DEST_LONGITUDE_REF`
`static int`	`TAG_GPS_DIFFERENTIAL`
`static int`	`TAG_GPS_DOP`
`static int`	`TAG_GPS_IFD`
`static int`	`TAG_GPS_IMG_DIRECTION`
`static int`	`TAG_GPS_IMG_DIRECTION_REF`
`static int`	`TAG_GPS_LATITUDE` Value is string.
`static int`	`TAG_GPS_LATITUDE_REF` Value is string(1) Indicates whether the latitude is north or south latitude.
`static int`	`TAG_GPS_LONGITUDE` Value is string.
`static int`	`TAG_GPS_LONGITUDE_REF` Value is string(1) Indicates whether the longitude is east or west longitude.
`static int`	`TAG_GPS_MAP_DATUM`
`static int`	`TAG_GPS_MEASURE_MODE`
`static int`	`TAG_GPS_PROCESSING_METHOD`
`static int`	`TAG_GPS_SATTELLITES`
`static int`	`TAG_GPS_SPEED` Value is string.
`static int`	`TAG_GPS_SPEED_REF` Value is string(1).
`static int`	`TAG_GPS_STATUS`
`static int`	`TAG_GPS_TIME_STAMP`
`static int`	`TAG_GPS_TRACK`
`static int`	`TAG_GPS_TRACK_REF`
`static int`	`TAG_GPS_VERSION_ID`
`static int`	`TAG_IMAGE_DESCRIPTION`
`static int`	`TAG_IMAGE_LENGTH`
`static int`	`TAG_IMAGE_UNIQUE_ID` `ExifTag.TYPE_ASCII`
`static int`	`TAG_IMAGE_WIDTH` Tag constants for Jeita EXIF 2.2
`static int`	`TAG_INTEROP_VERSION`
`static int`	`TAG_INTEROPERABILITY_IFD`
`static int`	`TAG_INTEROPERABILITY_INDEX`
`static int`	`TAG_ISO_SPEED_RATINGS` Value is unsigned int.
`static int`	`TAG_JPEG_INTERCHANGE_FORMAT`
`static int`	`TAG_JPEG_INTERCHANGE_FORMAT_LENGTH`
`static int`	`TAG_LENS_MAKE` Lens maker `ExifTag.TYPE_ASCII`
`static int`	`TAG_LENS_MODEL` Lens model name and number `ExifTag.TYPE_ASCII`
`static int`	`TAG_LENS_SPECS` Lens Specifications.
`static int`	`TAG_LIGHT_SOURCE` Value is unsigned int.
`static int`	`TAG_MAKE` Value is ascii string The manufacturer of the recording equipment.
`static int`	`TAG_MAKER_NOTE`
`static int`	`TAG_MAX_APERTURE_VALUE` Value is unsigned double.
`static int`	`TAG_METERING_MODE` Value is unsigned int.
`static int`	`TAG_MODEL` Value is ascii string The model name or model number of the equipment.
`static int`	`TAG_NULL`
`static int`	`TAG_OECF`
`static int`	`TAG_ORIENTATION` Value is int The orientation of the camera relative to the scene, when the image was captured.
`static int`	`TAG_PHOTOMETRIC_INTERPRETATION`
`static int`	`TAG_PIXEL_X_DIMENSION` Value is unsigned int.
`static int`	`TAG_PIXEL_Y_DIMENSION`
`static int`	`TAG_PLANAR_CONFIGURATION`
`static int`	`TAG_PRIMARY_CHROMATICITIES`
`static int`	`TAG_REFERENCE_BLACK_WHITE`
`static int`	`TAG_RELATED_SOUND_FILE`
`static int`	`TAG_RESOLUTION_UNIT` Value is unsigned int.
`static int`	`TAG_ROWS_PER_STRIP`
`static int`	`TAG_SAMPLES_PER_PIXEL`
`static int`	`TAG_SATURATION` Value is int.
`static int`	`TAG_SCENE_CAPTURE_TYPE` Value is int.
`static int`	`TAG_SCENE_TYPE`
`static int`	`TAG_SENSING_METHOD` Value is unsigned int.
`static int`	`TAG_SENSITIVITY_TYPE` The SensitivityType tag indicates which one of the parameters of ISO12232 is the PhotographicSensitivity tag.
`static int`	`TAG_SHARPNESS` Value is int.
`static int`	`TAG_SHUTTER_SPEED_VALUE` Value is signed double.
`static int`	`TAG_SOFTWARE` Value is ascii string Shows firmware(internal software of digicam) version number.
`static int`	`TAG_SPATIAL_FREQUENCY_RESPONSE`
`static int`	`TAG_SPECTRAL_SENSITIVITY`
`static int`	`TAG_STRIP_BYTE_COUNTS`
`static int`	`TAG_STRIP_OFFSETS`
`static int`	`TAG_SUB_SEC_TIME`
`static int`	`TAG_SUB_SEC_TIME_DIGITIZED`
`static int`	`TAG_SUB_SEC_TIME_ORIGINAL`
`static int`	`TAG_SUBJECT_AREA`
`static int`	`TAG_SUBJECT_DISTANCE` Value if signed double.
`static int`	`TAG_SUBJECT_DISTANCE_RANGE` Value is int.
`static int`	`TAG_SUBJECT_LOCATION`
`static int`	`TAG_TRANSFER_FUNCTION`
`static int`	`TAG_USER_COMMENT`
`static int`	`TAG_WHITE_BALANCE`
`static int`	`TAG_WHITE_POINT`
`static int`	`TAG_X_RESOLUTION` Value is unsigned double.
`static int`	`TAG_Y_CB_CR_COEFFICIENTS`
`static int`	`TAG_Y_CB_CR_POSITIONING`
`static int`	`TAG_Y_CB_CR_SUB_SAMPLING`
`static int`	`TAG_Y_RESOLUTION`

构造器概要

构造器
构造器和说明

ExifInterface()

构造器
构造器和说明
`ExifInterface()`

方法概要

所有方法静态方法实例方法具体方法
限定符和类型	方法和说明
`boolean`	`addDateTimeStampTag(int tagId, long timestamp, java.util.TimeZone timezone)` Creates, formats, and sets the DateTimeStamp tag for one of: `TAG_DATE_TIME`, `TAG_DATE_TIME_DIGITIZED`, `TAG_DATE_TIME_ORIGINAL`.
`boolean`	`addGpsDateTimeStampTag(long timestamp)` Creates and sets the GPS timestamp tag.
`boolean`	`addGpsTags(double latitude, double longitude)` Creates and sets all to the GPS tags for a give latitude and longitude.
`ExifTag`	`buildTag(int tagId, int ifdId, java.lang.Object val)` Creates a tag for a defined tag constant in a given IFD if that IFD is allowed for the tag.
`ExifTag`	`buildTag(int tagId, java.lang.Object val)` Creates a tag for a defined tag constant in the tag's default IFD.
`protected ExifTag`	`buildUninitializedTag(int tagId)`
`void`	`clearExif()` Clears this ExifInterface object's existing exif tags.
`protected static void`	`closeSilently(java.io.Closeable c)`
`static double`	`convertLatOrLongToDouble(Rational[] coordinate, java.lang.String reference)` Gets the double representation of the GPS latitude or longitude coordinate.
`static int`	`defineTag(int ifdId, short tagId)` Returns the constant representing a tag with a given TID and default IFD.
`void`	`deleteTag(int tagId)` Removes the ExifTag for a tag constant from that tag's default IFD.
`void`	`deleteTag(int tagId, int ifdId)` Removes the ExifTag for a tag constant from the given IFD.
`int`	`getActualTagCount(int tagId, int ifdId)` Gets the number of elements for an ExifTag in a given IFD.
`protected static int`	`getAllowedIfdFlagsFromInfo(int info)`
`protected static int[]`	`getAllowedIfdsFromInfo(int info)`
`java.util.List<ExifTag>`	`getAllTags()` Get the exif tags in this ExifInterface object or null if none exist.
`double`	`getAltitude(double defaultValue)` Return the altitude in meters.
`double`	`getApertureSize()` Return the aperture size, if present, 0 if missing
`protected static int`	`getComponentCountFromInfo(int info)`
`static java.util.Date`	`getDateTime(java.lang.String dateTimeString, java.util.TimeZone timeZone)` Given an exif date time, like `TAG_DATE_TIME` or `TAG_DATE_TIME_DIGITIZED` returns a java Date object
`int`	`getDefinedTagCount(int tagId)` Gets the defined number of elements for a tag.
`int`	`getDefinedTagDefaultIfd(int tagId)` Gets the default IFD for a tag.
`short`	`getDefinedTagType(int tagId)` Gets the defined type for a tag.
`protected static int`	`getFlagsFromAllowedIfds(int[] allowedIfds)`
`int[]`	`getImageSize()` Returns the Image size as decoded from the SOF marker
`short`	`getJpegProcess()` this gives information about the process used to create the JPEG file.
`java.lang.String`	`getLatitude()` Returns a formatted String with the latitude representation: 39° 8' 16.8" N
`double[]`	`getLatLongAsDoubles()` Gets the GPS latitude and longitude as a pair of doubles from this ExifInterface object's tags, or null if the necessary tags do not exist.
`java.lang.String`	`getLensModelDescription()` Returns the lens model as string if any of the tags `TAG_LENS_MODEL` or `TAG_LENS_SPECS` are found
`java.lang.String`	`getLongitude()` Returns a formatted String with the longitude representation: 77° 37' 51.6" W
`static short`	`getOrientationValueForRotation(int degrees)` Returns the Orientation ExifTag value for a given number of degrees.
`int`	`getQualityGuess()` Returns the JPEG quality used to generate the image or 0 if not found
`double`	`getResolutionUnit(int resolution)` Given the value from `TAG_FOCAL_PLANE_RESOLUTION_UNIT` or `TAG_RESOLUTION_UNIT` this method will return the corresponding value in millimeters
`static int`	`getRotationForOrientationValue(short orientation)` Returns the rotation degrees corresponding to an ExifTag Orientation value.
`ExifTag`	`getTag(int tagId)` Returns the ExifTag in that tag's default IFD for a defined tag constant or null if none exists.
`ExifTag`	`getTag(int tagId, int ifdId)` Gets an ExifTag for an IFD other than the tag's default.
`java.lang.Byte`	`getTagByteValue(int tagId)`
`java.lang.Byte`	`getTagByteValue(int tagId, int ifdId)`
`byte[]`	`getTagByteValues(int tagId)`
`byte[]`	`getTagByteValues(int tagId, int ifdId)`
`protected int`	`getTagDefinition(short tagId, int defaultIfd)`
`protected int`	`getTagDefinitionForTag(ExifTag tag)`
`protected int`	`getTagDefinitionForTag(short tagId, short type, int count, int ifd)`
`protected int[]`	`getTagDefinitionsForTagId(short tagId)`
`protected android.util.SparseIntArray`	`getTagInfo()`
`java.lang.Integer`	`getTagIntValue(int tagId)`
`java.lang.Integer`	`getTagIntValue(int tagId, int ifdId)`
`int[]`	`getTagIntValues(int tagId)`
`int[]`	`getTagIntValues(int tagId, int ifdId)`
`java.lang.Long`	`getTagLongValue(int tagId)`
`java.lang.Long`	`getTagLongValue(int tagId, int ifdId)`
`long[]`	`getTagLongValues(int tagId)`
`long[]`	`getTagLongValues(int tagId, int ifdId)`
`Rational`	`getTagRationalValue(int tagId)`
`Rational`	`getTagRationalValue(int tagId, int ifdId)`
`Rational[]`	`getTagRationalValues(int tagId)`
`Rational[]`	`getTagRationalValues(int tagId, int ifdId)`
`java.util.List<ExifTag>`	`getTagsForIfdId(int ifdId)` Returns a list of ExifTags that share an IFD (which can be obtained by calling `getTrueIfd(int)` on a defined tag constant) or null if none exist.
`java.util.List<ExifTag>`	`getTagsForTagId(short tagId)` Returns a list of ExifTags that share a TID (which can be obtained by calling `getTrueTagKey(int)` on a defined tag constant) or null if none exist.
`java.lang.String`	`getTagStringValue(int tagId)`
`java.lang.String`	`getTagStringValue(int tagId, int ifdId)`
`java.lang.Object`	`getTagValue(int tagId)` Returns the value of the ExifTag in that tag's default IFD for a defined tag constant or null if none exists or the value could not be cast into the return type.
`java.lang.Object`	`getTagValue(int tagId, int ifdId)` Gets a tag value for an IFD other than the tag's default.
`byte[]`	`getThumbnail()` Returns the thumbnail if it is jpeg compressed, or null if none exists.
`android.graphics.Bitmap`	`getThumbnailBitmap()` Returns the thumbnail from IFD1 as a bitmap, or null if none exists.
`byte[]`	`getThumbnailBytes()` Returns the thumbnail from IFD1 as a byte array, or null if none exists.
`static int`	`getTrueIfd(int tag)` Returns the default IFD for a tag constant.
`static short`	`getTrueTagKey(int tag)` Returns the TID for a tag constant.
`protected static short`	`getTypeFromInfo(int info)`
`java.lang.String`	`getUserComment()` Decodes the user comment tag into string as specified in the EXIF standard.
`boolean`	`hasThumbnail()` Check if thumbnail exists.
`protected static boolean`	`isIfdAllowed(int info, int ifd)`
`protected static boolean`	`isOffsetTag(short tag)` Returns true if tag TID is one of the following: `TAG_EXIF_IFD`, `TAG_GPS_IFD`, `TAG_JPEG_INTERCHANGE_FORMAT`, `TAG_STRIP_OFFSETS`, `TAG_INTEROPERABILITY_IFD` Note: defining tags with these TID's is disallowed.
`boolean`	`isTagCountDefined(int tagId)` Checks whether a tag has a defined number of elements.
`boolean`	`isThumbnailCompressed()` Check if thumbnail is compressed.
`void`	`readExif(byte[] jpeg, int options)` Reads the exif tags from a byte array, clearing this ExifInterface object's existing exif tags.
`void`	`readExif(java.io.InputStream inStream, int options)` Reads the exif tags from an InputStream, clearing this ExifInterface object's existing exif tags.
`void`	`readExif(java.lang.String inFileName, int options)` Reads the exif tags from a file, clearing this ExifInterface object's existing exif tags.
`void`	`removeCompressedThumbnail()` Clears the compressed thumbnail if it exists.
`void`	`removeTagDefinition(int tagId)` Removes a tag definition for given defined tag constant.
`void`	`resetTagDefinitions()` Resets tag definitions to the default ones.
`boolean`	`setCompressedThumbnail(android.graphics.Bitmap thumb)` Sets the thumbnail to be a jpeg compressed bitmap.
`boolean`	`setCompressedThumbnail(byte[] thumb)` Sets the thumbnail to be a jpeg compressed image.
`void`	`setExif(java.util.Collection<ExifTag> tags)` Sets the exif tags, clearing this ExifInterface object's existing exif tags.
`ExifTag`	`setTag(ExifTag tag)` Puts an ExifTag into this ExifInterface object's tags, removing a previous ExifTag with the same TID and IFD.
`int`	`setTagDefinition(short tagId, int defaultIfd, short tagType, short defaultComponentCount, int[] allowedIfds)` Creates a new tag definition in this ExifInterface object for a given TID and default IFD.
`void`	`setTags(java.util.Collection<ExifTag> tags)` Puts a collection of ExifTags into this ExifInterface objects's tags.
`boolean`	`setTagValue(int tagId, int ifdId, java.lang.Object val)` Sets the value of an ExifTag if it exists in the given IFD.
`boolean`	`setTagValue(int tagId, java.lang.Object val)` Sets the value of an ExifTag if it exists it's default IFD.
`static byte[]`	`toBitArray(short value)`
`void`	`writeExif(android.graphics.Bitmap input, java.lang.String dstFilename, int quality)`
`void`	`writeExif(java.io.InputStream input, java.lang.String dstFilename)`
`void`	`writeExif(java.lang.String dstFilename)`
`boolean`	`writeExif(java.lang.String srcFilename, java.lang.String dstFilename)`

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - TAG_NULL
```
public static final int TAG_NULL
```
    另请参阅:
    
    常量字段值
  - IFD_NULL
```
public static final int IFD_NULL
```
    另请参阅:
    
    常量字段值
  - DEFINITION_NULL
```
public static final int DEFINITION_NULL
```
    另请参阅:
    
    常量字段值
  - TAG_IMAGE_WIDTH
```
public static final int TAG_IMAGE_WIDTH
```
    Tag constants for Jeita EXIF 2.2
  - TAG_IMAGE_LENGTH
```
public static final int TAG_IMAGE_LENGTH
```
  - TAG_BITS_PER_SAMPLE
```
public static final int TAG_BITS_PER_SAMPLE
```
  - TAG_COMPRESSION
```
public static final int TAG_COMPRESSION
```
    Value is unsigned int.
    (Read only tag) The compression scheme used for the image data. When a primary image is JPEG compressed, this designation is not necessary and is omitted. When thumbnails use JPEG compression, this tag value is set to 6.
    - 1 = uncompressed
    - 6 = JPEG compression (thumbnails only)
    - Other = reserved
  - TAG_PHOTOMETRIC_INTERPRETATION
```
public static final int TAG_PHOTOMETRIC_INTERPRETATION
```
  - TAG_IMAGE_DESCRIPTION
```
public static final int TAG_IMAGE_DESCRIPTION
```
  - TAG_MAKE
```
public static final int TAG_MAKE
```
    Value is ascii string
    The manufacturer of the recording equipment. This is the manufacturer of the DSC, scanner, video digitizer or other equipment that generated the image. When the field is left blank, it is treated as unknown.
  - TAG_MODEL
```
public static final int TAG_MODEL
```
    Value is ascii string
    The model name or model number of the equipment. This is the model name of number of the DSC, scanner, video digitizer or other equipment that generated the image. When the field is left blank, it is treated as unknown.
  - TAG_STRIP_OFFSETS
```
public static final int TAG_STRIP_OFFSETS
```
  - TAG_ORIENTATION
```
public static final int TAG_ORIENTATION
```
    Value is int
    The orientation of the camera relative to the scene, when the image was captured. The start point of stored data is:
    - '0' undefined
    - '1' normal
    - '2' flip horizontal
    - '3' rotate 180
    - '4' flip vertical
    - '5' transpose, flipped about top-left <--> bottom-right axis
    - '6' rotate 90 cw
    - '7' transverse, flipped about top-right <--> bottom-left axis
    - '8' rotate 270
    - '9' undefined
  - TAG_SAMPLES_PER_PIXEL
```
public static final int TAG_SAMPLES_PER_PIXEL
```
  - TAG_ROWS_PER_STRIP
```
public static final int TAG_ROWS_PER_STRIP
```
  - TAG_STRIP_BYTE_COUNTS
```
public static final int TAG_STRIP_BYTE_COUNTS
```
  - TAG_INTEROP_VERSION
```
public static final int TAG_INTEROP_VERSION
```
  - TAG_X_RESOLUTION
```
public static final int TAG_X_RESOLUTION
```
    Value is unsigned double.
    Display/Print resolution of image. Large number of digicam uses 1/72inch, but it has no mean because personal computer doesn't use this value to display/print out.
  - TAG_Y_RESOLUTION
```
public static final int TAG_Y_RESOLUTION
```
    另请参阅:
    
    TAG_X_RESOLUTION
  - TAG_PLANAR_CONFIGURATION
```
public static final int TAG_PLANAR_CONFIGURATION
```
  - TAG_RESOLUTION_UNIT
```
public static final int TAG_RESOLUTION_UNIT
```
    Value is unsigned int.
    Unit of XResolution(0x011a)/YResolution(0x011b)
    - '1' means no-unit ( use inch )
    - '2' inch
    - '3' centimeter
    - '4' millimeter
    - '5' micrometer
  - TAG_TRANSFER_FUNCTION
```
public static final int TAG_TRANSFER_FUNCTION
```
  - TAG_SOFTWARE
```
public static final int TAG_SOFTWARE
```
    Value is ascii string
    Shows firmware(internal software of digicam) version number.
  - TAG_DATE_TIME
```
public static final int TAG_DATE_TIME
```
    Value is ascii string (20)
    Date/Time of image was last modified. Data format is "YYYY:MM:DD HH:MM:SS"+0x00, total 20bytes. In usual, it has the same value of DateTimeOriginal(0x9003)
  - TAG_ARTIST
```
public static final int TAG_ARTIST
```
    Vallue is ascii String
    This tag records the name of the camera owner, photographer or image creator. The detailed format is not specified, but it is recommended that the information be written as in the example below for ease of Interoperability. When the field is left blank, it is treated as unknown.
  - TAG_WHITE_POINT
```
public static final int TAG_WHITE_POINT
```
  - TAG_PRIMARY_CHROMATICITIES
```
public static final int TAG_PRIMARY_CHROMATICITIES
```
  - TAG_Y_CB_CR_COEFFICIENTS
```
public static final int TAG_Y_CB_CR_COEFFICIENTS
```
  - TAG_Y_CB_CR_SUB_SAMPLING
```
public static final int TAG_Y_CB_CR_SUB_SAMPLING
```
  - TAG_Y_CB_CR_POSITIONING
```
public static final int TAG_Y_CB_CR_POSITIONING
```
  - TAG_REFERENCE_BLACK_WHITE
```
public static final int TAG_REFERENCE_BLACK_WHITE
```
  - TAG_COPYRIGHT
```
public static final int TAG_COPYRIGHT
```
    Values is ascii string
    Shows copyright information
  - TAG_EXIF_IFD
```
public static final int TAG_EXIF_IFD
```
  - TAG_GPS_IFD
```
public static final int TAG_GPS_IFD
```
  - TAG_JPEG_INTERCHANGE_FORMAT
```
public static final int TAG_JPEG_INTERCHANGE_FORMAT
```
  - TAG_JPEG_INTERCHANGE_FORMAT_LENGTH
```
public static final int TAG_JPEG_INTERCHANGE_FORMAT_LENGTH
```
  - TAG_EXPOSURE_TIME
```
public static final int TAG_EXPOSURE_TIME
```
    Value is unsigned double
    Exposure time (reciprocal of shutter speed). Unit is second
  - TAG_F_NUMBER
```
public static final int TAG_F_NUMBER
```
    Value is unsigned double
    The actual F-number(F-stop) of lens when the image was taken
    
    另请参阅:
    
    TAG_APERTURE_VALUE
  - TAG_EXPOSURE_PROGRAM
```
public static final int TAG_EXPOSURE_PROGRAM
```
    Value is unsigned int.
    Exposure program that the camera used when image was taken.
    - '1' means manual control
    - '2' program normal
    - '3' aperture priority
    - '4' shutter priority
    - '5' program creative (slow program)
    - '6' program action(high-speed program)
    - '7' portrait mode
    - '8' landscape mode.
  - TAG_SPECTRAL_SENSITIVITY
```
public static final int TAG_SPECTRAL_SENSITIVITY
```
  - TAG_ISO_SPEED_RATINGS
```
public static final int TAG_ISO_SPEED_RATINGS
```
    Value is unsigned int.
    CCD sensitivity equivalent to Ag-Hr film speedrate.
    Indicates the ISO Speed and ISO Latitude of the camera or input device as specified in ISO 12232
  - TAG_OECF
```
public static final int TAG_OECF
```
  - TAG_EXIF_VERSION
```
public static final int TAG_EXIF_VERSION
```
    ASCII string (4).
    The version of this standard supported. Nonexistence of this field is taken to mean nonconformance to the standard (see section 4.2). Conformance to this standard is indicated by recording "0220" as 4-byte ASCII
  - TAG_DATE_TIME_ORIGINAL
```
public static final int TAG_DATE_TIME_ORIGINAL
```
    Value is ascii string (20)
    Date/Time of original image taken. This value should not be modified by user program.
  - TAG_DATE_TIME_DIGITIZED
```
public static final int TAG_DATE_TIME_DIGITIZED
```
    Value is ascii string (20)
    Date/Time of image digitized. Usually, it contains the same value of DateTimeOriginal(0x9003).
  - TAG_COMPONENTS_CONFIGURATION
```
public static final int TAG_COMPONENTS_CONFIGURATION
```
  - TAG_COMPRESSED_BITS_PER_PIXEL
```
public static final int TAG_COMPRESSED_BITS_PER_PIXEL
```
  - TAG_SHUTTER_SPEED_VALUE
```
public static final int TAG_SHUTTER_SPEED_VALUE
```
    Value is signed double.
    Shutter speed. To convert this value to ordinary 'Shutter Speed'; calculate this value's power of 2, then reciprocal. For example, if value is '4', shutter speed is 1/(2^4)=1/16 second.
  - TAG_APERTURE_VALUE
```
public static final int TAG_APERTURE_VALUE
```
    Value is unsigned double
    The actual aperture value of lens when the image was taken.
    To convert this value to ordinary F-number(F-stop), calculate this value's power of root 2 (=1.4142).
    For example, if value is '5', F-number is 1.4142^5 = F5.6
```
 FNumber = Math.exp( ApertureValue * Math.log( 2 ) * 0.5 );
 
```
    另请参阅:
    
    TAG_F_NUMBER
  - TAG_BRIGHTNESS_VALUE
```
public static final int TAG_BRIGHTNESS_VALUE
```
    Value is signed double
    Brightness of taken subject, unit is EV.
  - TAG_EXPOSURE_BIAS_VALUE
```
public static final int TAG_EXPOSURE_BIAS_VALUE
```
    Value is signed double.
    The exposure bias. The unit is the APEX value. Ordinarily it is given in the range of -99.99 to 99.99
  - TAG_MAX_APERTURE_VALUE
```
public static final int TAG_MAX_APERTURE_VALUE
```
    Value is unsigned double.
    Maximum aperture value of lens.
    You can convert to F-number by calculating power of root 2 (same process of ApertureValue(0x9202).
```
 FNumber = Math.exp( MaxApertureValue * Math.log( 2 ) * 0.5 )
 
```
  - TAG_SUBJECT_DISTANCE
```
public static final int TAG_SUBJECT_DISTANCE
```
    Value if signed double.
    Distance to focus point, unit is meter. If value < 0 then focus point is infinite
  - TAG_METERING_MODE
```
public static final int TAG_METERING_MODE
```
    Value is unsigned int.
    Exposure metering method:
    - 0 = unknown
    - 1 = Average
    - 2 = CenterWeightedAverage
    - 3 = Spot
    - 4 = MultiSpot
    - 5 = Pattern
    - 6 = Partial
    - Other = reserved
    - 255 = other
  - TAG_LIGHT_SOURCE
```
public static final int TAG_LIGHT_SOURCE
```
    Value is unsigned int.
    Light source, actually this means white balance setting.
    - 0 = means auto
    - 1 = Daylight
    - 2 = Fluorescent
    - 3 = Tungsten (incandescent light)
    - 4 = Flash
    - 9 = Fine weather
    - 10 = Cloudy weather
    - 11 = Shade
    - 12 = Daylight fluorescent (D 5700 - 7100K)
    - 13 = Day white fluorescent (N 4600 - 5400K)
    - 14 = Cool white fluorescent (W 3900 - 4500K)
    - 15 = White fluorescent (WW 3200 - 3700K)
    - 17 = Standard light A
    - 18 = Standard light B
    - 19 = Standard light C
    - 20 = D55
    - 21 = D65
    - 22 = D75
    - 23 = D50
    - 24 = ISO studio tungsten
    - 255 = other light source
    - Other = reserved
  - TAG_FLASH
```
public static final int TAG_FLASH
```
    Value is unsigned integer
    The 8 bits can be extracted and evaluated in this way:
    1. Bit 0 indicates the flash firing status
    2. bits 1 and 2 indicate the flash return status
    3. bits 3 and 4 indicate the flash mode
    4. bit 5 indicates whether the flash function is present
    5. and bit 6 indicates "red eye" mode
    6. bit 7 unused
    Resulting Flash tag values are:
    - 0000.H = Flash did not fire
    - 0001.H = Flash fired
    - 0005.H = Strobe return light not detected
    - 0007.H = Strobe return light detected
    - 0009.H = Flash fired, compulsory flash mode
    - 000D.H = Flash fired, compulsory flash mode, return light not detected
    - 000F.H = Flash fired, compulsory flash mode, return light detected
    - 0010.H = Flash did not fire, compulsory flash mode
    - 0018.H = Flash did not fire, auto mode
    - 0019.H = Flash fired, auto mode
    - 001D.H = Flash fired, auto mode, return light not detected
    - 001F.H = Flash fired, auto mode, return light detected
    - 0020.H = No flash function
    - 0041.H = Flash fired, red-eye reduction mode
    - 0045.H = Flash fired, red-eye reduction mode, return light not detected
    - 0047.H = Flash fired, red-eye reduction mode, return light detected
    - 0049.H = Flash fired, compulsory flash mode, red-eye reduction mode
    - 004D.H = Flash fired, compulsory flash mode, red-eye reduction mode, return light not detected
    - 004F.H = Flash fired, compulsory flash mode, red-eye reduction mode, return light detected
    - 0059.H = Flash fired, auto mode, red-eye reduction mode
    - 005D.H = Flash fired, auto mode, return light not detected, red-eye reduction mode
    - 005F.H = Flash fired, auto mode, return light detected, red-eye reduction mode
    - Other = reserved
    另请参阅:
    
    http://www.exif.org/Exif2-2.PDF
  - TAG_FOCAL_LENGTH
```
public static final int TAG_FOCAL_LENGTH
```
    Value is unsigned double
    Focal length of lens used to take image. Unit is millimeter.
  - TAG_SUBJECT_AREA
```
public static final int TAG_SUBJECT_AREA
```
  - TAG_MAKER_NOTE
```
public static final int TAG_MAKER_NOTE
```
  - TAG_USER_COMMENT
```
public static final int TAG_USER_COMMENT
```
  - TAG_SUB_SEC_TIME
```
public static final int TAG_SUB_SEC_TIME
```
  - TAG_SUB_SEC_TIME_ORIGINAL
```
public static final int TAG_SUB_SEC_TIME_ORIGINAL
```
  - TAG_SUB_SEC_TIME_DIGITIZED
```
public static final int TAG_SUB_SEC_TIME_DIGITIZED
```
  - TAG_FLASHPIX_VERSION
```
public static final int TAG_FLASHPIX_VERSION
```
  - TAG_COLOR_SPACE
```
public static final int TAG_COLOR_SPACE
```
    Value is int.
    Normally sRGB (=1) is used to define the color space based on the PC monitor conditions and environment. If a color space other than sRGB is used, Uncalibrated (=FFFF.H) is set. Image data recorded as Uncalibrated can be treated as sRGB when it is converted to Flashpix. On sRGB see Annex E.
    - '1' = sRGB
    - 'FFFF' = Uncalibrated
    - 'other' = Reserved
  - TAG_PIXEL_X_DIMENSION
```
public static final int TAG_PIXEL_X_DIMENSION
```
    Value is unsigned int.
    Specific to compressed data; the valid width of the meaningful image. When a compressed file is recorded, the valid width of the meaningful image shall be recorded in this tag, whether or not there is padding data or a restart marker. This tag should not exist in an uncompressed file.
  - TAG_PIXEL_Y_DIMENSION
```
public static final int TAG_PIXEL_Y_DIMENSION
```
    另请参阅:
    
    TAG_PIXEL_X_DIMENSION
  - TAG_RELATED_SOUND_FILE
```
public static final int TAG_RELATED_SOUND_FILE
```
  - TAG_INTEROPERABILITY_IFD
```
public static final int TAG_INTEROPERABILITY_IFD
```
  - TAG_FLASH_ENERGY
```
public static final int TAG_FLASH_ENERGY
```
  - TAG_SPATIAL_FREQUENCY_RESPONSE
```
public static final int TAG_SPATIAL_FREQUENCY_RESPONSE
```
  - TAG_FOCAL_PLANE_X_RESOLUTION
```
public static final int TAG_FOCAL_PLANE_X_RESOLUTION
```
    Value is unsigned double.
    Indicates the number of pixels in the image width (X) direction per FocalPlaneResolutionUnit on the camera focal plane. CCD's pixel density
    
    另请参阅:
    
    TAG_FOCAL_PLANE_RESOLUTION_UNIT
  - TAG_FOCAL_PLANE_Y_RESOLUTION
```
public static final int TAG_FOCAL_PLANE_Y_RESOLUTION
```
    另请参阅:
    
    TAG_FOCAL_PLANE_X_RESOLUTION
  - TAG_FOCAL_PLANE_RESOLUTION_UNIT
```
public static final int TAG_FOCAL_PLANE_RESOLUTION_UNIT
```
    Value is unsigned int.
    Unit of FocalPlaneXResoluton/FocalPlaneYResolution.
    - '1' means no-unit
    - '2' inch
    - '3' centimeter
    - '4' millimeter
    - '5' micrometer
    This tag can be used to calculate the CCD Width:
```
 CCDWidth = ( PixelXDimension * FocalPlaneResolutionUnit / FocalPlaneXResolution )
 
```
  - TAG_SUBJECT_LOCATION
```
public static final int TAG_SUBJECT_LOCATION
```
  - TAG_EXPOSURE_INDEX
```
public static final int TAG_EXPOSURE_INDEX
```
  - TAG_SENSING_METHOD
```
public static final int TAG_SENSING_METHOD
```
    Value is unsigned int.
    Indicates the image sensor type on the camera or input device. The values are as follows:
    - 1 = Not defined
    - 2 = One-chip color area sensor
    - 3 = Two-chip color area sensor JEITA CP-3451 - 41
    - 4 = Three-chip color area sensor
    - 5 = Color sequential area sensor
    - 7 = Trilinear sensor
    - 8 = Color sequential linear sensor
    - Other = reserved
  - TAG_FILE_SOURCE
```
public static final int TAG_FILE_SOURCE
```
  - TAG_SCENE_TYPE
```
public static final int TAG_SCENE_TYPE
```
  - TAG_CFA_PATTERN
```
public static final int TAG_CFA_PATTERN
```
  - TAG_CUSTOM_RENDERED
```
public static final int TAG_CUSTOM_RENDERED
```
  - TAG_EXPOSURE_MODE
```
public static final int TAG_EXPOSURE_MODE
```
    Value is int.
    This tag indicates the exposure mode set when the image was shot. In auto-bracketing mode, the camera shoots a series of frames of the same scene at different exposure settings.
    - 0 = Auto exposure
    - 1 = Manual exposure
    - 2 = Auto bracket
    - Other = reserved
  - TAG_WHITE_BALANCE
```
public static final int TAG_WHITE_BALANCE
```
  - TAG_DIGITAL_ZOOM_RATIO
```
public static final int TAG_DIGITAL_ZOOM_RATIO
```
    Value is double.
    This tag indicates the digital zoom ratio when the image was shot. If the numerator of the recorded value is 0, this indicates that digital zoom was not used
  - TAG_FOCAL_LENGTH_IN_35_MM_FILE
```
public static final int TAG_FOCAL_LENGTH_IN_35_MM_FILE
```
    Value is unsigned int.
    This tag indicates the equivalent focal length assuming a 35mm film camera, in mm.
    Exif 2.2 tag, usually not present, it can be calculated by:
```
 CCDWidth = ( PixelXDimension * FocalplaneUnits / FocalplaneXRes );
 FocalLengthIn35mmFilm = ( FocalLength / CCDWidth * 36 + 0.5 );
 
```
  - TAG_SCENE_CAPTURE_TYPE
```
public static final int TAG_SCENE_CAPTURE_TYPE
```
    Value is int.
    This tag indicates the type of scene that was shot. It can also be used to record the mode in which the image was shot. Note that this differs from the scene type (SceneType) tag.
    - 0 = Standard
    - 1 = Landscape
    - 2 = Portrait
    - 3 = Night scene
    - Other = reserved
  - TAG_GAIN_CONTROL
```
public static final int TAG_GAIN_CONTROL
```
    Value is int.
    This tag indicates the degree of overall image gain adjustment.
    - 0 = None
    - 1 = Low gain up
    - 2 = High gain up
    - 3 = Low gain down
    - 4 = High gain down
    - Other = reserved
  - TAG_CONTRAST
```
public static final int TAG_CONTRAST
```
    Value is int.
    This tag indicates the direction of contrast processing applied by the camera when the image was shot.
    - 0 = Normal
    - 1 = Soft
    - 2 = Hard
    - Other = reserved
  - TAG_SATURATION
```
public static final int TAG_SATURATION
```
    Value is int.
    This tag indicates the direction of saturation processing applied by the camera when the image was shot.
    - 0 = Normal
    - 1 = Low saturation
    - 2 = High saturation
    - Other = reserved
  - TAG_SHARPNESS
```
public static final int TAG_SHARPNESS
```
    Value is int.
    This tag indicates the direction of sharpness processing applied by the camera when the image was shot
    - 0 = Normal
    - 1 = Soft
    - 2 = Hard
    - Other = reserved
  - TAG_DEVICE_SETTING_DESCRIPTION
```
public static final int TAG_DEVICE_SETTING_DESCRIPTION
```
  - TAG_SUBJECT_DISTANCE_RANGE
```
public static final int TAG_SUBJECT_DISTANCE_RANGE
```
    Value is int.
    This tag indicates the distance to the subject.
    - 0 = unknown
    - 1 = Macro
    - 2 = Close view
    - 3 = Distant view
    - Other = reserved
  - TAG_IMAGE_UNIQUE_ID
```
public static final int TAG_IMAGE_UNIQUE_ID
```
    ExifTag.TYPE_ASCII
  - TAG_LENS_SPECS
```
public static final int TAG_LENS_SPECS
```
    Lens Specifications. The value it's a 4 rational containing:
    1. Minimum focal length (in mm)
    2. Maximum focal length (in mm)
    3. Minimum F Number in the minimum focal length
    4. Maximum F Number in the maximum focal length
    ExifTag.TYPE_RATIONAL
    从以下版本开始:
    
    EXIF 2.3
    
    另请参阅:
    
    it.sephiroth.android.library.exif2.ExifUtil#processLensSpecifications(Rational[])
  - TAG_LENS_MAKE
```
public static final int TAG_LENS_MAKE
```
    Lens maker ExifTag.TYPE_ASCII
    
    从以下版本开始:
    
    EXIF 2.3
  - TAG_LENS_MODEL
```
public static final int TAG_LENS_MODEL
```
    Lens model name and number ExifTag.TYPE_ASCII
    
    从以下版本开始:
    
    EXIF 2.3
  - TAG_SENSITIVITY_TYPE
```
public static final int TAG_SENSITIVITY_TYPE
```
    The SensitivityType tag indicates which one of the parameters of ISO12232 is the PhotographicSensitivity tag. Although it is an optional tag, it should be recorded when a PhotographicSensitivity tag is recorded. Value = 4, 5, 6, or 7 may be used in case that the values of plural parameters are the same.
    Values:
    - 0: Unknown
    - 1: Standardoutputsensitivity(SOS)
    - 2: Recommended exposure index (REI)
    - 3: ISOspeed
    - 4: Standard output sensitivity (SOS) and recommended exposure index (REI)
    - 5: Standardoutputsensitivity(SOS)andISOspeed
    - 6: Recommendedexposureindex(REI)andISOspeed
    - 7: Standard output sensitivity (SOS) and recommended exposure index (REI) and ISO speed
    - Other: Reserved
    ExifTag.TYPE_UNSIGNED_SHORT
    从以下版本开始:
    
    EXIF 2.3
    
    另请参阅:
    
    it.sephiroth.android.library.exif2.ExifInterface.SensitivityType
  - TAG_GPS_VERSION_ID
```
public static final int TAG_GPS_VERSION_ID
```
  - TAG_GPS_LATITUDE_REF
```
public static final int TAG_GPS_LATITUDE_REF
```
    Value is string(1)
    Indicates whether the latitude is north or south latitude. The ASCII value 'N' indicates north latitude, and 'S' is south latitude.
  - TAG_GPS_LATITUDE
```
public static final int TAG_GPS_LATITUDE
```
    Value is string.
    Indicates the latitude. The latitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. If latitude is expressed as degrees, minutes and seconds, a typical format would be dd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format would be dd/1,mmmm/100,0/1.
  - TAG_GPS_LONGITUDE_REF
```
public static final int TAG_GPS_LONGITUDE_REF
```
    Value is string(1)
    Indicates whether the longitude is east or west longitude. ASCII 'E' indicates east longitude, and 'W' is west longitude.
  - TAG_GPS_LONGITUDE
```
public static final int TAG_GPS_LONGITUDE
```
    Value is string.
    Indicates the longitude. The longitude is expressed as three RATIONAL values giving the degrees, minutes, and seconds, respectively. If longitude is expressed as degrees, minutes and seconds, a typical format would be ddd/1,mm/1,ss/1. When degrees and minutes are used and, for example, fractions of minutes are given up to two decimal places, the format would be ddd/1,mmmm/100,0/1.
  - TAG_GPS_ALTITUDE_REF
```
public static final int TAG_GPS_ALTITUDE_REF
```
    Value is byte
    Indicates the altitude used as the reference altitude. If the reference is sea level and the altitude is above sea level, 0 is given. If the altitude is below sea level, a value of 1 is given and the altitude is indicated as an absolute value in the GPSAltitude tag. The reference unit is meters. Note that this tag is BYTE type, unlike other reference tags
  - TAG_GPS_ALTITUDE
```
public static final int TAG_GPS_ALTITUDE
```
    Value is string.
    Indicates the altitude based on the reference in GPSAltitudeRef. Altitude is expressed as one RATIONAL value. The reference unit is meters.
  - TAG_GPS_TIME_STAMP
```
public static final int TAG_GPS_TIME_STAMP
```
  - TAG_GPS_SATTELLITES
```
public static final int TAG_GPS_SATTELLITES
```
  - TAG_GPS_STATUS
```
public static final int TAG_GPS_STATUS
```
  - TAG_GPS_MEASURE_MODE
```
public static final int TAG_GPS_MEASURE_MODE
```
  - TAG_GPS_DOP
```
public static final int TAG_GPS_DOP
```
  - TAG_GPS_SPEED_REF
```
public static final int TAG_GPS_SPEED_REF
```
    Value is string(1).
    Indicates the unit used to express the GPS receiver speed of movement. 'K' 'M' and 'N' represents kilometers per hour, miles per hour, and knots.
  - TAG_GPS_SPEED
```
public static final int TAG_GPS_SPEED
```
    Value is string.
    Indicates the speed of GPS receiver movement
  - TAG_GPS_TRACK_REF
```
public static final int TAG_GPS_TRACK_REF
```
  - TAG_GPS_TRACK
```
public static final int TAG_GPS_TRACK
```
  - TAG_GPS_IMG_DIRECTION_REF
```
public static final int TAG_GPS_IMG_DIRECTION_REF
```
  - TAG_GPS_IMG_DIRECTION
```
public static final int TAG_GPS_IMG_DIRECTION
```
  - TAG_GPS_MAP_DATUM
```
public static final int TAG_GPS_MAP_DATUM
```
  - TAG_GPS_DEST_LATITUDE_REF
```
public static final int TAG_GPS_DEST_LATITUDE_REF
```
  - TAG_GPS_DEST_LATITUDE
```
public static final int TAG_GPS_DEST_LATITUDE
```
  - TAG_GPS_DEST_LONGITUDE_REF
```
public static final int TAG_GPS_DEST_LONGITUDE_REF
```
  - TAG_GPS_DEST_LONGITUDE
```
public static final int TAG_GPS_DEST_LONGITUDE
```
  - TAG_GPS_DEST_BEARING_REF
```
public static final int TAG_GPS_DEST_BEARING_REF
```
  - TAG_GPS_DEST_BEARING
```
public static final int TAG_GPS_DEST_BEARING
```
  - TAG_GPS_DEST_DISTANCE_REF
```
public static final int TAG_GPS_DEST_DISTANCE_REF
```
  - TAG_GPS_DEST_DISTANCE
```
public static final int TAG_GPS_DEST_DISTANCE
```
  - TAG_GPS_PROCESSING_METHOD
```
public static final int TAG_GPS_PROCESSING_METHOD
```
  - TAG_GPS_AREA_INFORMATION
```
public static final int TAG_GPS_AREA_INFORMATION
```
  - TAG_GPS_DATE_STAMP
```
public static final int TAG_GPS_DATE_STAMP
```
  - TAG_GPS_DIFFERENTIAL
```
public static final int TAG_GPS_DIFFERENTIAL
```
  - TAG_INTEROPERABILITY_INDEX
```
public static final int TAG_INTEROPERABILITY_INDEX
```
  - DEFAULT_BYTE_ORDER
```
public static final java.nio.ByteOrder DEFAULT_BYTE_ORDER
```
  - sBannedDefines
```
protected static java.util.HashSet<java.lang.Short> sBannedDefines
```
    Tags with definitions that cannot be overridden (banned defines).
- 构造器详细资料
  - ExifInterface
```
public ExifInterface()
```
- 方法详细资料
  - isOffsetTag
```
protected static boolean isOffsetTag(short tag)
```
    Returns true if tag TID is one of the following: TAG_EXIF_IFD, TAG_GPS_IFD, TAG_JPEG_INTERCHANGE_FORMAT, TAG_STRIP_OFFSETS, TAG_INTEROPERABILITY_IFD
    Note: defining tags with these TID's is disallowed.
    
    参数:
    
    tag - a tag's TID (can be obtained from a defined tag constant with getTrueTagKey(int)).
    
    返回:
    
    true if the TID is that of an offset tag.
  - getOrientationValueForRotation
```
public static short getOrientationValueForRotation(int degrees)
```
    Returns the Orientation ExifTag value for a given number of degrees.
    
    参数:
    
    degrees - the amount an image is rotated in degrees.
  - getRotationForOrientationValue
```
public static int getRotationForOrientationValue(short orientation)
```
    Returns the rotation degrees corresponding to an ExifTag Orientation value.
    
    参数:
    
    orientation - the ExifTag Orientation value.
  - getResolutionUnit
```
public double getResolutionUnit(int resolution)
```
    Given the value from TAG_FOCAL_PLANE_RESOLUTION_UNIT or TAG_RESOLUTION_UNIT this method will return the corresponding value in millimeters
    
    参数:
    
    resolution - TAG_FOCAL_PLANE_RESOLUTION_UNIT or TAG_RESOLUTION_UNIT
    
    返回:
    
    resolution in millimeters
  - convertLatOrLongToDouble
```
public static double convertLatOrLongToDouble(Rational[] coordinate,
                                              java.lang.String reference)
```
    Gets the double representation of the GPS latitude or longitude coordinate.
    
    参数:
    
    coordinate - an array of 3 Rationals representing the degrees, minutes, and seconds of the GPS location as defined in the exif specification.
    
    reference - a GPS reference reperesented by a String containing "N", "S", "E", or "W".
    
    返回:
    
    the GPS coordinate represented as degrees + minutes/60 + seconds/3600
  - getAllowedIfdsFromInfo
```
protected static int[] getAllowedIfdsFromInfo(int info)
```
  - readExif
```
public void readExif(java.lang.String inFileName,
                     int options)
              throws java.io.IOException
```
    Reads the exif tags from a file, clearing this ExifInterface object's existing exif tags.
    
    参数:
    
    inFileName - a string representing the filepath to jpeg file.
    
    options - bit flag which defines which type of tags to process, see it.sephiroth.android.library.exif2.ExifInterface.Options
    
    抛出:
    
    java.io.IOException
    
    另请参阅:
    
    readExif(java.io.InputStream, int)
  - readExif
```
public void readExif(java.io.InputStream inStream,
                     int options)
              throws java.io.IOException
```
    Reads the exif tags from an InputStream, clearing this ExifInterface object's existing exif tags.
```
     ExifInterface exif = new ExifInterface();
     exif.readExif( stream, Options.OPTION_IFD_0 | Options.OPTION_IFD_1 | Options.OPTION_IFD_EXIF );
     ...
     // to request all the options use the OPTION_ALL bit mask
     exif.readExif( stream, Options.OPTION_ALL );
 
```
    参数:
    
    inStream - an InputStream containing a jpeg compressed image.
    
    options - bit flag which defines which type of tags to process, see it.sephiroth.android.library.exif2.ExifInterface.Options
    
    抛出:
    
    java.io.IOException
  - closeSilently
```
protected static void closeSilently(java.io.Closeable c)
```
  - setExif
```
public void setExif(java.util.Collection<ExifTag> tags)
```
    Sets the exif tags, clearing this ExifInterface object's existing exif tags.
    
    参数:
    
    tags - a collection of exif tags to set.
  - clearExif
```
public void clearExif()
```
    Clears this ExifInterface object's existing exif tags.
  - setTags
```
public void setTags(java.util.Collection<ExifTag> tags)
```
    Puts a collection of ExifTags into this ExifInterface objects's tags. Any previous ExifTags with the same TID and IFDs will be removed.
    
    参数:
    
    tags - a Collection of ExifTags.
    
    另请参阅:
    
    setTag(org.lasque.tusdk.core.exif.ExifTag)
  - setTag
```
public ExifTag setTag(ExifTag tag)
```
    Puts an ExifTag into this ExifInterface object's tags, removing a previous ExifTag with the same TID and IFD. The IFD it is put into will be the one the tag was created with in buildTag(int, java.lang.Object).
    
    参数:
    
    tag - an ExifTag to put into this ExifInterface's tags.
    
    返回:
    
    the previous ExifTag with the same TID and IFD or null if none exists.
  - writeExif
```
public void writeExif(java.lang.String dstFilename)
               throws java.io.IOException
```
    抛出:
    
    java.io.IOException
  - writeExif
```
public boolean writeExif(java.lang.String srcFilename,
                         java.lang.String dstFilename)
                  throws java.io.IOException
```
    抛出:
    
    java.io.IOException
  - writeExif
```
public void writeExif(java.io.InputStream input,
                      java.lang.String dstFilename)
               throws java.io.IOException
```
    抛出:
    
    java.io.IOException
  - writeExif
```
public void writeExif(android.graphics.Bitmap input,
                      java.lang.String dstFilename,
                      int quality)
               throws java.io.IOException
```
    抛出:
    
    java.io.IOException
  - getAllTags
```
public java.util.List<ExifTag> getAllTags()
```
    Get the exif tags in this ExifInterface object or null if none exist.
    
    返回:
    
    a List of ExifTags.
  - readExif
```
public void readExif(byte[] jpeg,
                     int options)
              throws java.io.IOException
```
    Reads the exif tags from a byte array, clearing this ExifInterface object's existing exif tags.
    
    参数:
    
    jpeg - a byte array containing a jpeg compressed image.
    
    options - bit flag which defines which type of tags to process, see it.sephiroth.android.library.exif2.ExifInterface.Options
    
    抛出:
    
    java.io.IOException
    
    另请参阅:
    
    readExif(java.io.InputStream, int)
  - getTagsForTagId
```
public java.util.List<ExifTag> getTagsForTagId(short tagId)
```
    Returns a list of ExifTags that share a TID (which can be obtained by calling getTrueTagKey(int) on a defined tag constant) or null if none exist.
    
    参数:
    
    tagId - a TID as defined in the exif standard (or with defineTag(int, short)).
    
    返回:
    
    a List of ExifTags.
  - getTagsForIfdId
```
public java.util.List<ExifTag> getTagsForIfdId(int ifdId)
```
    Returns a list of ExifTags that share an IFD (which can be obtained by calling getTrueIfd(int) on a defined tag constant) or null if none exist.
    
    参数:
    
    ifdId - an IFD as defined in the exif standard (or with defineTag(int, short)).
    
    返回:
    
    a List of ExifTags.
  - getTag
```
public ExifTag getTag(int tagId)
```
    Returns the ExifTag in that tag's default IFD for a defined tag constant or null if none exists.
    
    参数:
    
    tagId - a defined tag constant, e.g. TAG_IMAGE_WIDTH.
    
    返回:
    
    an ExifTag or null if none exists.
  - getDefinedTagDefaultIfd
```
public int getDefinedTagDefaultIfd(int tagId)
```
    Gets the default IFD for a tag.
    
    参数:
    
    tagId - a defined tag constant, e.g. TAG_IMAGE_WIDTH.
    
    返回:
    
    the default IFD for a tag definition or IFD_NULL if no definition exists.
  - getTag
```
public ExifTag getTag(int tagId,
                      int ifdId)
```
    Gets an ExifTag for an IFD other than the tag's default.
    
    另请参阅:
    
    getTag(int)
  - getTagInfo
```
protected android.util.SparseIntArray getTagInfo()
```
  - getTrueIfd
```
public static int getTrueIfd(int tag)
```
    Returns the default IFD for a tag constant.
  - getTrueTagKey
```
public static short getTrueTagKey(int tag)
```
    Returns the TID for a tag constant.
  - getFlagsFromAllowedIfds
```
protected static int getFlagsFromAllowedIfds(int[] allowedIfds)
```
  - getTagValue
```
public java.lang.Object getTagValue(int tagId)
```
    Returns the value of the ExifTag in that tag's default IFD for a defined tag constant or null if none exists or the value could not be cast into the return type.
    
    参数:
    
    tagId - a defined tag constant, e.g. TAG_IMAGE_WIDTH.
    
    返回:
    
    the value of the ExifTag or null if none exists.
  - getTagValue
```
public java.lang.Object getTagValue(int tagId,
                                    int ifdId)
```
    Gets a tag value for an IFD other than the tag's default.
    
    另请参阅:
    
    getTagValue(int)
  - getTagStringValue
```
public java.lang.String getTagStringValue(int tagId,
                                          int ifdId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagStringValue
```
public java.lang.String getTagStringValue(int tagId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagLongValue
```
public java.lang.Long getTagLongValue(int tagId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagLongValue
```
public java.lang.Long getTagLongValue(int tagId,
                                      int ifdId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagLongValues
```
public long[] getTagLongValues(int tagId,
                               int ifdId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagIntValue
```
public java.lang.Integer getTagIntValue(int tagId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagIntValue
```
public java.lang.Integer getTagIntValue(int tagId,
                                        int ifdId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagIntValues
```
public int[] getTagIntValues(int tagId,
                             int ifdId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagByteValue
```
public java.lang.Byte getTagByteValue(int tagId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagByteValue
```
public java.lang.Byte getTagByteValue(int tagId,
                                      int ifdId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagByteValues
```
public byte[] getTagByteValues(int tagId,
                               int ifdId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagRationalValue
```
public Rational getTagRationalValue(int tagId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagRationalValue
```
public Rational getTagRationalValue(int tagId,
                                    int ifdId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagRationalValues
```
public Rational[] getTagRationalValues(int tagId,
                                       int ifdId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagLongValues
```
public long[] getTagLongValues(int tagId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagIntValues
```
public int[] getTagIntValues(int tagId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagByteValues
```
public byte[] getTagByteValues(int tagId)
```
    另请参阅:
    
    getTagValue(int)
  - getTagRationalValues
```
public Rational[] getTagRationalValues(int tagId)
```
    另请参阅:
    
    getTagValue(int)
  - isTagCountDefined
```
public boolean isTagCountDefined(int tagId)
```
    Checks whether a tag has a defined number of elements.
    
    参数:
    
    tagId - a defined tag constant, e.g. TAG_IMAGE_WIDTH.
    
    返回:
    
    true if the tag has a defined number of elements.
  - getComponentCountFromInfo
```
protected static int getComponentCountFromInfo(int info)
```
  - getDefinedTagCount
```
public int getDefinedTagCount(int tagId)
```
    Gets the defined number of elements for a tag.
    
    参数:
    
    tagId - a defined tag constant, e.g. TAG_IMAGE_WIDTH.
    
    返回:
    
    the number of elements or ExifTag.SIZE_UNDEFINED if the tag or the number of elements is not defined.
  - getActualTagCount
```
public int getActualTagCount(int tagId,
                             int ifdId)
```
    Gets the number of elements for an ExifTag in a given IFD.
    
    参数:
    
    tagId - a defined tag constant, e.g. TAG_IMAGE_WIDTH.
    
    ifdId - the IFD containing the ExifTag to check.
    
    返回:
    
    the number of elements in the ExifTag, if the tag's size is undefined this will return the actual number of elements that is in the ExifTag's value.
  - getDefinedTagType
```
public short getDefinedTagType(int tagId)
```
    Gets the defined type for a tag.
    
    参数:
    
    tagId - a defined tag constant, e.g. TAG_IMAGE_WIDTH.
    
    返回:
    
    the type.
    
    另请参阅:
    
    ExifTag.getDataType()
  - getTypeFromInfo
```
protected static short getTypeFromInfo(int info)
```
  - buildUninitializedTag
```
protected ExifTag buildUninitializedTag(int tagId)
```
  - setTagValue
```
public boolean setTagValue(int tagId,
                           java.lang.Object val)
```
    Sets the value of an ExifTag if it exists it's default IFD. The value must be the correct type and length for that ExifTag.
    
    参数:
    
    tagId - a tag constant, e.g. TAG_IMAGE_WIDTH.
    
    val - the value to set.
    
    返回:
    
    true if success, false if the ExifTag doesn't exist or the value is the wrong type/length.
  - setTagValue
```
public boolean setTagValue(int tagId,
                           int ifdId,
                           java.lang.Object val)
```
    Sets the value of an ExifTag if it exists in the given IFD. The value must be the correct type and length for that ExifTag.
    
    参数:
    
    tagId - a tag constant, e.g. TAG_IMAGE_WIDTH.
    
    ifdId - the IFD that the ExifTag is in.
    
    val - the value to set.
    
    返回:
    
    true if success, false if the ExifTag doesn't exist or the value is the wrong type/length.
    
    另请参阅:
    
    setTagValue(int, java.lang.Object)
  - deleteTag
```
public void deleteTag(int tagId)
```
    Removes the ExifTag for a tag constant from that tag's default IFD.
    
    参数:
    
    tagId - a tag constant, e.g. TAG_IMAGE_WIDTH.
  - deleteTag
```
public void deleteTag(int tagId,
                      int ifdId)
```
    Removes the ExifTag for a tag constant from the given IFD.
    
    参数:
    
    tagId - a tag constant, e.g. TAG_IMAGE_WIDTH.
    
    ifdId - the IFD of the ExifTag to remove.
  - setTagDefinition
```
public int setTagDefinition(short tagId,
                            int defaultIfd,
                            short tagType,
                            short defaultComponentCount,
                            int[] allowedIfds)
```
    Creates a new tag definition in this ExifInterface object for a given TID and default IFD. Creating a definition with the same TID and default IFD as a previous definition will override it.
    
    参数:
    
    tagId - the TID for the tag.
    
    defaultIfd - the default IFD for the tag.
    
    tagType - the type of the tag (see ExifTag.getDataType()).
    
    defaultComponentCount - the number of elements of this tag's type in the tags value.
    
    allowedIfds - the IFD's this tag is allowed to be put in.
    
    返回:
    
    the defined tag constant (e.g. TAG_IMAGE_WIDTH) or TAG_NULL if the definition could not be made.
  - getTagDefinition
```
protected int getTagDefinition(short tagId,
                               int defaultIfd)
```
  - defineTag
```
public static int defineTag(int ifdId,
                            short tagId)
```
    Returns the constant representing a tag with a given TID and default IFD.
  - getTagDefinitionsForTagId
```
protected int[] getTagDefinitionsForTagId(short tagId)
```
  - getTagDefinitionForTag
```
protected int getTagDefinitionForTag(ExifTag tag)
```
  - getTagDefinitionForTag
```
protected int getTagDefinitionForTag(short tagId,
                                     short type,
                                     int count,
                                     int ifd)
```
  - removeTagDefinition
```
public void removeTagDefinition(int tagId)
```
    Removes a tag definition for given defined tag constant.
    
    参数:
    
    tagId - a defined tag constant, e.g. TAG_IMAGE_WIDTH.
  - resetTagDefinitions
```
public void resetTagDefinitions()
```
    Resets tag definitions to the default ones.
  - getThumbnailBitmap
```
public android.graphics.Bitmap getThumbnailBitmap()
```
    Returns the thumbnail from IFD1 as a bitmap, or null if none exists.
    
    返回:
    
    the thumbnail as a bitmap.
  - getThumbnailBytes
```
public byte[] getThumbnailBytes()
```
    Returns the thumbnail from IFD1 as a byte array, or null if none exists. The bytes may either be an uncompressed strip as specified in the exif standard or a jpeg compressed image.
    
    返回:
    
    the thumbnail as a byte array.
  - getThumbnail
```
public byte[] getThumbnail()
```
    Returns the thumbnail if it is jpeg compressed, or null if none exists.
    
    返回:
    
    the thumbnail as a byte array.
  - getQualityGuess
```
public int getQualityGuess()
```
    Returns the JPEG quality used to generate the image or 0 if not found
    
    返回:
  - getJpegProcess
```
public short getJpegProcess()
```
    this gives information about the process used to create the JPEG file. Possible values are:
    - '0' Unknown
    - '192' Baseline
    - '193' Extended sequential
    - '194' Progressive
    - '195' Lossless
    - '197' Differential sequential
    - '198' Differential progressive
    - '199' Differential lossless
    - '201' Extended sequential, arithmetic coding
    - '202' Progressive, arithmetic coding
    - '203' Lossless, arithmetic coding
    - '205' Differential sequential, arithmetic coding
    - '206' Differential progressive, arithmetic codng
    - '207' Differential lossless, arithmetic coding
  - getImageSize
```
public int[] getImageSize()
```
    Returns the Image size as decoded from the SOF marker
  - isThumbnailCompressed
```
public boolean isThumbnailCompressed()
```
    Check if thumbnail is compressed.
    
    返回:
    
    true if the thumbnail is compressed.
  - hasThumbnail
```
public boolean hasThumbnail()
```
    Check if thumbnail exists.
    
    返回:
    
    true if a compressed thumbnail exists.
  - setCompressedThumbnail
```
public boolean setCompressedThumbnail(android.graphics.Bitmap thumb)
```
    Sets the thumbnail to be a jpeg compressed bitmap. Clears any prior thumbnail.
    
    参数:
    
    thumb - a bitmap to compress to a jpeg thumbnail.
    
    返回:
    
    true if the thumbnail was set.
  - setCompressedThumbnail
```
public boolean setCompressedThumbnail(byte[] thumb)
```
    Sets the thumbnail to be a jpeg compressed image. Clears any prior thumbnail.
    
    参数:
    
    thumb - a byte array containing a jpeg compressed image.
    
    返回:
    
    true if the thumbnail was set.
  - removeCompressedThumbnail
```
public void removeCompressedThumbnail()
```
    Clears the compressed thumbnail if it exists.
  - getUserComment
```
public java.lang.String getUserComment()
```
    Decodes the user comment tag into string as specified in the EXIF standard. Returns null if decoding failed.
  - getAltitude
```
public double getAltitude(double defaultValue)
```
    Return the altitude in meters. If the exif tag does not exist, return defaultValue.
    
    参数:
    
    defaultValue - the value to return if the tag is not available.
  - getLatLongAsDoubles
```
public double[] getLatLongAsDoubles()
```
    Gets the GPS latitude and longitude as a pair of doubles from this ExifInterface object's tags, or null if the necessary tags do not exist.
    
    返回:
    
    an array of 2 doubles containing the latitude, and longitude respectively.
    
    另请参阅:
    
    convertLatOrLongToDouble(org.lasque.tusdk.core.exif.Rational[], java.lang.String)
  - getLatitude
```
public java.lang.String getLatitude()
```
    Returns a formatted String with the latitude representation:
    39° 8' 16.8" N
  - getLongitude
```
public java.lang.String getLongitude()
```
    Returns a formatted String with the longitude representation:
    77° 37' 51.6" W
  - getDateTime
```
public static java.util.Date getDateTime(java.lang.String dateTimeString,
                                         java.util.TimeZone timeZone)
```
    Given an exif date time, like TAG_DATE_TIME or TAG_DATE_TIME_DIGITIZED returns a java Date object
    
    参数:
    
    dateTimeString - one of the value of TAG_DATE_TIME or TAG_DATE_TIME_DIGITIZED
    
    timeZone - the target timezone
    
    返回:
    
    the parsed date
  - addDateTimeStampTag
```
public boolean addDateTimeStampTag(int tagId,
                                   long timestamp,
                                   java.util.TimeZone timezone)
```
    Creates, formats, and sets the DateTimeStamp tag for one of: TAG_DATE_TIME, TAG_DATE_TIME_DIGITIZED, TAG_DATE_TIME_ORIGINAL.
    
    参数:
    
    tagId - one of the DateTimeStamp tags.
    
    timestamp - a timestamp to format.
    
    timezone - a TimeZone object.
    
    返回:
    
    true if success, false if the tag could not be set.
  - buildTag
```
public ExifTag buildTag(int tagId,
                        java.lang.Object val)
```
    Creates a tag for a defined tag constant in the tag's default IFD.
    
    参数:
    
    tagId - a tag constant, e.g. TAG_IMAGE_WIDTH.
    
    val - the tag's value.
    
    返回:
    
    an ExifTag object.
  - buildTag
```
public ExifTag buildTag(int tagId,
                        int ifdId,
                        java.lang.Object val)
```
    Creates a tag for a defined tag constant in a given IFD if that IFD is allowed for the tag. This method will fail anytime the appropriate ExifTag.setValue(int[]) for this tag's datatype would fail.
    
    参数:
    
    tagId - a tag constant, e.g. TAG_IMAGE_WIDTH.
    
    ifdId - the IFD that the tag should be in.
    
    val - the value of the tag to set.
    
    返回:
    
    an ExifTag object or null if one could not be constructed.
    
    另请参阅:
    
    buildTag(int, java.lang.Object)
  - isIfdAllowed
```
protected static boolean isIfdAllowed(int info,
                                      int ifd)
```
  - getAllowedIfdFlagsFromInfo
```
protected static int getAllowedIfdFlagsFromInfo(int info)
```
  - addGpsTags
```
public boolean addGpsTags(double latitude,
                          double longitude)
```
    Creates and sets all to the GPS tags for a give latitude and longitude.
    
    参数:
    
    latitude - a GPS latitude coordinate.
    
    longitude - a GPS longitude coordinate.
    
    返回:
    
    true if success, false if they could not be created or set.
  - addGpsDateTimeStampTag
```
public boolean addGpsDateTimeStampTag(long timestamp)
```
    Creates and sets the GPS timestamp tag.
    
    参数:
    
    timestamp - a GPS timestamp.
    
    返回:
    
    true if success, false if could not be created or set.
  - getApertureSize
```
public double getApertureSize()
```
    Return the aperture size, if present, 0 if missing
  - getLensModelDescription
```
public java.lang.String getLensModelDescription()
```
    Returns the lens model as string if any of the tags TAG_LENS_MODEL or TAG_LENS_SPECS are found
    
    返回:
    
    the string representation of the lens spec
  - toBitArray
```
public static byte[] toBitArray(short value)
```

类 ExifInterface

嵌套类概要

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

TAG_NULL

IFD_NULL

DEFINITION_NULL

TAG_IMAGE_WIDTH

TAG_IMAGE_LENGTH

TAG_BITS_PER_SAMPLE

TAG_COMPRESSION

TAG_PHOTOMETRIC_INTERPRETATION

TAG_IMAGE_DESCRIPTION

TAG_MAKE

TAG_MODEL

TAG_STRIP_OFFSETS

TAG_ORIENTATION

TAG_SAMPLES_PER_PIXEL

TAG_ROWS_PER_STRIP

TAG_STRIP_BYTE_COUNTS

TAG_INTEROP_VERSION

TAG_X_RESOLUTION

TAG_Y_RESOLUTION

TAG_PLANAR_CONFIGURATION

TAG_RESOLUTION_UNIT

TAG_TRANSFER_FUNCTION

TAG_SOFTWARE

TAG_DATE_TIME

TAG_ARTIST

TAG_WHITE_POINT

TAG_PRIMARY_CHROMATICITIES

TAG_Y_CB_CR_COEFFICIENTS

TAG_Y_CB_CR_SUB_SAMPLING

TAG_Y_CB_CR_POSITIONING

TAG_REFERENCE_BLACK_WHITE

TAG_COPYRIGHT

TAG_EXIF_IFD

TAG_GPS_IFD

TAG_JPEG_INTERCHANGE_FORMAT

TAG_JPEG_INTERCHANGE_FORMAT_LENGTH

TAG_EXPOSURE_TIME

TAG_F_NUMBER

TAG_EXPOSURE_PROGRAM

TAG_SPECTRAL_SENSITIVITY

TAG_ISO_SPEED_RATINGS

TAG_OECF

TAG_EXIF_VERSION

TAG_DATE_TIME_ORIGINAL

TAG_DATE_TIME_DIGITIZED

TAG_COMPONENTS_CONFIGURATION

TAG_COMPRESSED_BITS_PER_PIXEL

TAG_SHUTTER_SPEED_VALUE

TAG_APERTURE_VALUE

TAG_BRIGHTNESS_VALUE

TAG_EXPOSURE_BIAS_VALUE

TAG_MAX_APERTURE_VALUE

TAG_SUBJECT_DISTANCE

TAG_METERING_MODE

TAG_LIGHT_SOURCE

TAG_FLASH

TAG_FOCAL_LENGTH

TAG_SUBJECT_AREA

TAG_MAKER_NOTE

TAG_USER_COMMENT

TAG_SUB_SEC_TIME

TAG_SUB_SEC_TIME_ORIGINAL

TAG_SUB_SEC_TIME_DIGITIZED

TAG_FLASHPIX_VERSION

TAG_COLOR_SPACE

TAG_PIXEL_X_DIMENSION

TAG_PIXEL_Y_DIMENSION

TAG_RELATED_SOUND_FILE

TAG_INTEROPERABILITY_IFD

TAG_FLASH_ENERGY

TAG_SPATIAL_FREQUENCY_RESPONSE

TAG_FOCAL_PLANE_X_RESOLUTION

TAG_FOCAL_PLANE_Y_RESOLUTION