android——自定义截图（加水印、logo等）

    /**
     * 获取指定Activity的截屏，保存到png文件
     */
    public static Bitmap takeScreenShot(Activity activity) {

        // View是你需要截图的View
        View view = activity.getWindow().getDecorView();
        view.setDrawingCacheEnabled(true);
        view.buildDrawingCache();
        Bitmap b1 = view.getDrawingCache();

        // 获取状态栏高度
//        Rect frame = new Rect();
//        activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
//        int statusBarHeight = frame.top;
        int statusBarHeight = getStatusHeight(activity);

        // 获取屏幕长和高
        int width = activity.getWindowManager().getDefaultDisplay().getWidth();
        int height = activity.getWindowManager().getDefaultDisplay()
                .getHeight();

        //二维码图片
        Bitmap erweima = BitmapFactory.decodeResource(activity.getResources(), R.drawable.icon_erweima);
        erweima = Bitmap.createScaledBitmap(erweima, width, width / 5, true);

        // 去掉标题栏
        // Bitmap b = Bitmap.createBitmap(b1, 0, 25, 320, 455);
        Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height
                - statusBarHeight);
        view.destroyDrawingCache();

        Bitmap bitmap = Bitmap.createBitmap(width, height - statusBarHeight + width / 5, Bitmap.Config.ARGB_8888);
        final Canvas canvas = new Canvas(bitmap);
        Paint paint = new Paint();
        Paint bgPaint = new Paint();
        bgPaint.setColor(Color.parseColor("#1e4873"));
        Rect rect = new Rect(0, 0, width, height - statusBarHeight + width / 5);
        canvas.drawRect(rect, bgPaint);

        int h = 0;
        canvas.drawBitmap(b, 0, h, paint);
        h += height - statusBarHeight;
        canvas.drawBitmap(erweima, 0, h, paint);

//        savePic(bitmap, "/sdcard/screen_test.png");

        return bitmap;
    }

获取状态栏高度：

http://www.cnblogs.com/shoneworn/p/8026587.html