在imageview中使用时从相机或图库拍摄的照片,其方向发生变化,有时在Android中垂直拉伸

图像具有不同的方向,因此在进行imageview时它会根据方向旋转.您可以从图像属性检查照片的方向.要以正确的方式设置图像,您可以使用以下代码...

     int rot=getCameraPhotoOrientation(this,Uri,picturePath);
         if(rot!=0)
         bitmap=new RotateOrientation().RotateOrientationCall(bitmap,rot);

该getCameraPhotoOrientation方法: -

 public static int getCameraPhotoOrientation(Context context, Uri imageUri, String imagePath){
     int rotate = 0;
     try {
         context.getContentResolver().notifyChange(imageUri, null);
         File imageFile = new File(imagePath);
         ExifInterface exif = new ExifInterface(
                 imageFile.getAbsolutePath());
         int orientation = exif.getAttributeInt(
                 ExifInterface.TAG_ORIENTATION,
                 ExifInterface.ORIENTATION_NORMAL);

         switch (orientation) {
         case ExifInterface.ORIENTATION_ROTATE_270:
             rotate = 270;
             break;
         case ExifInterface.ORIENTATION_ROTATE_180:
             rotate = 180;
             break;
         case ExifInterface.ORIENTATION_ROTATE_90:
             rotate = 90;
             break;
         }


         Log.d(TAG, "Exit orientation: " + orientation);
     } catch (Exception e) {
         e.printStackTrace();
     }
    return rotate;
 }

添加RotateOrientation类以根据方向旋转类.

 public class RotateOrientation  {

Bitmap RotateOrientationCall(Bitmap src,float degree)
        {


        Matrix matrix=new Matrix();
        matrix.postRotate(degree);
       Bitmap bmOut = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
      return bmOut;

      }
          }