Question

How can I drop shadow to Button in Android?

Like that:

https://app-direct-www-cloudfront.s3.amazonaws.com/app_resources/1398/overview/img257128879592909522.png

Thanks you all!

Answer 1

You can add shadow to a bitmap as follows:

Paint mShadow = new Paint(); 
// radius=10, x-offset = 0, y-offset=2, color=black

mShadow.setShadowLayer(10.0f, 0.0f, 2.0f, 0xFF000000); 
// in onDraw(Canvas) 
canvas.drawBitmap(bitmap, 0.0f, 0.0f, mShadow);

Adding shadow to shapes is similarly achieved.