Rotate Image in ImageView

Question

In my app, the image is captured from the camera and then it displays in a ImageView
I've done this approach successfully, but when my image is displayed in Imageview, Image display after rotate.
I want to rotate Image and then Display in ImageView.
When I click image from front camera then image is display proper with the help of bellow code

Matrix matrix = new Matrix();
matrix.postRotate(90);
Bitmap rotate = Bitmap.createBitmap(scale,0,0,scale.getWidth(),scale.getHeight(),matrix,true);
displayImage.setImageBitmap(rotate); 

But when I click from back camera Image will display opposite to front camera. One more thing when I click image from camera from different angle then image will display in ImageView in different angle.

Answer 1

I use following code in my application.
It works for me...!!!

    File mediaFile = new File(mediaPath);
            Bitmap bitmap;
            if (mediaFile.exists()) {

                if (isImage(mediaPath)) {

                    Bitmap myBitmap = BitmapFactory.decodeFile(mediaFile.getAbsolutePath());
                    int height = (myBitmap.getHeight() * 512 / myBitmap.getWidth());
                    Bitmap scale = Bitmap.createScaledBitmap(myBitmap, 512, height, true);
                    int rotate = 0;
                    try {
                        exif = new ExifInterface(mediaFile.getAbsolutePath());
                    } catch (IOException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                    int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                            ExifInterface.ORIENTATION_UNDEFINED);
                    switch (orientation) {
                    case ExifInterface.ORIENTATION_NORMAL:
                        rotate = 0;
                        break;
                    case ExifInterface.ORIENTATION_ROTATE_270:
                        rotate = 270;
                        break;
                    case ExifInterface.ORIENTATION_ROTATE_180:
                        rotate = 180;
                        break;
                    case ExifInterface.ORIENTATION_ROTATE_90:
                        rotate = 90;
                        break;
                    }

                    Matrix matrix = new Matrix();
                    matrix.postRotate(rotate);
                    Bitmap rotateBitmap = Bitmap.createBitmap(scale, 0, 0, scale.getWidth(),
                            scale.getHeight(), matrix, true);
                    displayImage.setImageBitmap(rotateBitmap);
       }
}
public static boolean isImage(String str) {
        boolean temp = false;
        String[] arr = { ".jpeg", ".jpg", ".png", ".bmp", ".gif" };
        for (int i = 0; i < arr.length; i++) {
            temp = str.endsWith(arr[i]);
            if (temp) {
                break;
            }
        }
        return temp;
    }