Java tutorial
//package com.java2s; import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { public static Bitmap ScaleAndRotateBitmap(Bitmap bitmap, int rotation, int flipHorizontal) { Matrix m = new Matrix(); if (flipHorizontal != 0) { m.postScale(-1, 1); } if (rotation != 0) { m.postRotate(rotation); } Bitmap finalBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), m, true); if (finalBitmap != bitmap) { bitmap.recycle(); } return finalBitmap; } }