Java tutorial
//package com.java2s; //License from project: Apache License import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { public static Bitmap rotateBitmap(int degrees, Bitmap bitmap) { if (degrees == 0 || null == bitmap) { return bitmap; } Matrix matrix = new Matrix(); matrix.setRotate(degrees, bitmap.getWidth() / 2, bitmap.getHeight() / 2); Bitmap bmp = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); if (null != bitmap) { bitmap.recycle(); bitmap = null; } return bmp; } }