Java tutorial
//package com.java2s; //License from project: Apache License import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { /** * Method to rotate a Bitmap specifying the angle. * * @param source The original Bitmap. * @param angle float that represents the rotation angle. * @return The rotated Bitmap. */ public static Bitmap rotate(Bitmap source, float angle) { Matrix matrix = new Matrix(); matrix.postRotate(angle); return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), matrix, true); } }