Android 實現簡單截屏并保存為文件

    /**
     * 截屏
     * @param v         視圖
     * @param filePath  保存路徑
     */
    private void getScreenHot(View v, String filePath)
    {        
        try
        {
            Bitmap bitmap = Bitmap.createBitmap(v.getWidth(), v.getHeight(), Config.ARGB_8888);
            Canvas canvas = new Canvas();
            canvas.setBitmap(bitmap);
            v.draw(canvas);

            try
            {
                FileOutputStream fos = new FileOutputStream(filePath);
                bitmap.compress(CompressFormat.PNG, 100, fos);
            }
            catch (FileNotFoundException e)
            {
                throw new InvalidParameterException();
            }

        }
        catch (Exception e)
        {
          e.printStackTrace();
        }
    }

getScreenHot((View) getWindow().getDecorView(), "/sdcard/test1.png");