Java tutorial
//package com.java2s; import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { public static Bitmap rotate(final Bitmap bitmap, final float winkel) { final Matrix matrix = new Matrix(); matrix.postRotate(winkel); final Bitmap rotated = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); return rotated; } }