Java tutorial
//package com.java2s; import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { public static Bitmap rotateBitmapDegree(Bitmap bm, int degree) { Bitmap returnBm; int w = bm.getWidth(); int h = bm.getHeight(); Matrix matrix = new Matrix(); matrix.postRotate(degree); returnBm = Bitmap.createBitmap(bm, 0, 0, w, h, matrix, true); if (bm != returnBm) { bm.recycle(); } return returnBm; } }