Take a screenshot programatically in Android

TakeScreenshot.java

public static Bitmap takeScreenshot(Activity activity) {
        ViewGroup decor = (ViewGroup) activity.getWindow().getDecorView();
        ViewGroup decorChild = (ViewGroup) decor.getChildAt(0);
        decorChild.setDrawingCacheEnabled(true);
        decorChild.buildDrawingCache();
        Bitmap drawingCache = decorChild.getDrawingCache(true);
        Bitmap bitmap = Bitmap.createBitmap(drawingCache);
        decorChild.setDrawingCacheEnabled(false);
        return bitmap;
}