图像方向-Android

您需要考虑所有方向，而不仅仅是90或180。我正在使用

    File curFile = new File("path-to-file"); // ... This is an image file from my device.    Bitmap rotatedBitmap; try {     ExifInterface exif = new ExifInterface(curFile.getPath());     int rotation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);     int rotationInDegrees = exifToDegrees(rotation);     Matrix matrix = new Matrix();     if (rotation != 0f) {matrix.preRotate(rotationInDegrees);}     rotatedBitmap = Bitmap.createBitmap(bitmap,0,0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); }catch(IOException ex){     Log.e(TAG, "Failed to get Exif data", ex); }

和：

 private static int exifToDegrees(int exifOrientation) {    if (exifOrientation == ExifInterface.ORIENTATION_ROTATE_90) { return 90; }    else if (exifOrientation == ExifInterface.ORIENTATION_ROTATE_180) {  return 180; }    else if (exifOrientation == ExifInterface.ORIENTATION_ROTATE_270) {  return 270; }    return 0;}