Java tutorial
//package com.java2s; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; import android.graphics.RectF; public class Main { public static Bitmap getRoundedCornerBitmap(Bitmap bitmap) { Bitmap bitmap1 = null; if (bitmap != null) { bitmap1 = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), android.graphics.Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap1); Paint paint = new Paint(); Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); RectF rectf = new RectF(rect); paint.setAntiAlias(true); canvas.drawARGB(0, 0, 0, 0); paint.setColor(0xffff0000); canvas.drawRoundRect(rectf, 15F, 15F, paint); paint.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.SRC_IN)); canvas.drawBitmap(bitmap, rect, rect, paint); bitmap.recycle(); } return bitmap1; } }