Java tutorial
//package com.java2s; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Path; public class Main { public static void drawImage(Canvas canvas, Paint paint, Bitmap bitmap, float x, float y, float r) { canvas.save(); Path path = new Path(); path.addCircle(x, y, r, Path.Direction.CCW); canvas.clipPath(path); canvas.drawBitmap(bitmap, x - r, y - r, paint); canvas.restore(); } }