How to get the size of bitmap after displaying it in ImageView

Question

I have a imageview

Answer 1

After you display a Bitmap in a ImageView, The ImageView will create a BitmapDrawable object to draw it in ImageView's Canvas. So you can invoke ImageView.getDrawable() method to get the reference of the BitmapDrawable, and get the Bounds by invoke Drawable.getBounds(Rect rect) method. through the bounds, you can compute the width and height of the Bitmap drawn in ImageView

Drawable drawable = ImageView.getDrawable();
//you should call after the bitmap drawn
Rect bounds = drawable.getBounds();
int width = bounds.width();
int height = bounds.height();
int bitmapWidth = drawable.getIntrinsicWidth(); //this is the bitmap's width
int bitmapHeight = drawable.getIntrinsicHeight(); //this is the bitmap's height