Java tutorial
//package com.java2s; import android.graphics.Bitmap; import android.graphics.Matrix; public class Main { private static Bitmap rotaingImageView(Bitmap bitmap, int angle) { Matrix matrix = new Matrix(); ; matrix.postRotate(angle); Bitmap rotateBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); return rotateBitmap; } }