Android ImageView adjusting parent's height and fitting width

Question

Update : I solved this issue by using the method described in this answer

I\'m a bit stuck with this issue, which I think should be pretty simple.

Answer 1

Thanks to @Julien and @js. Here is complete solution of ImageView that will stretch bitmap height preserving aspect ratio even if bitmap is smaller than ImageView.

public class ResizableImageView extends ImageView {

    public ResizableImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override 
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec){
         Drawable d = getDrawable();

         if(d!=null){
                 // ceil not round - avoid thin vertical gaps along the left/right edges
                 int width = MeasureSpec.getSize(widthMeasureSpec);
                 int height = (int) Math.ceil((float) width * (float) d.getIntrinsicHeight() / (float) d.getIntrinsicWidth());
                 setMeasuredDimension(width, height);
         }else{
                 super.onMeasure(widthMeasureSpec, heightMeasureSpec);
         }
    }

}

You can use this class in your xml layouts instead ImageView.