1 package com.android.wallpaper.asset; 2 3 import android.os.Build; 4 5 import androidx.exifinterface.media.ExifInterface; 6 7 import java.io.IOException; 8 import java.io.InputStream; 9 10 /** 11 * Provides access to basic ExifInterface APIs using {@link android.media.ExifInterface} in OMR1+ 12 * SDK or SupportLibrary's {@link ExifInterface} for earlier SDK versions. 13 */ 14 class ExifInterfaceCompat { 15 16 public static final String TAG_ORIENTATION = ExifInterface.TAG_ORIENTATION; 17 public static final int EXIF_ORIENTATION_NORMAL = 1; 18 public static final int EXIF_ORIENTATION_UNKNOWN = -1; 19 20 private ExifInterface mSupportExifInterface; 21 private android.media.ExifInterface mFrameworkExifInterface; 22 23 /** 24 * Reads Exif tags from the specified image input stream. It's the caller's responsibility to 25 * close the given InputStream after use. 26 * @see ExifInterface#ExifInterface(InputStream) 27 * @see android.media.ExifInterface#ExifInterface(InputStream) 28 */ ExifInterfaceCompat(InputStream inputStream)29 public ExifInterfaceCompat(InputStream inputStream) throws IOException { 30 // O-MR1 added support for more formats (HEIF), which Support Library cannot implement, 31 // so use the framework version for SDK 27+ 32 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) { 33 mFrameworkExifInterface = new android.media.ExifInterface(inputStream); 34 } else { 35 mSupportExifInterface = new ExifInterface(inputStream); 36 } 37 } 38 getAttributeInt(String tag, int defaultValue)39 public int getAttributeInt(String tag, int defaultValue) { 40 return mFrameworkExifInterface != null 41 ? mFrameworkExifInterface.getAttributeInt(tag, defaultValue) 42 : mSupportExifInterface.getAttributeInt(tag, defaultValue); 43 } 44 getAttribute(String tag)45 public String getAttribute(String tag) { 46 return mFrameworkExifInterface != null 47 ? mFrameworkExifInterface.getAttribute(tag) 48 : mSupportExifInterface.getAttribute(tag); 49 } 50 } 51