Java tutorial
//package com.java2s; //License from project: Apache License import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { private static final Matrix mMatrix = new Matrix(); public static Bitmap rotateBitmap(Bitmap bitmap, int rotationAngle) { mMatrix.reset(); mMatrix.postRotate(rotationAngle); return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), mMatrix, false); } }