/**

     * 获取和保存当前屏幕的截图

     */

    private void GetandSaveCurrentImage()

    {

        //1.构建Bitmap

        WindowManager windowManager = getWindowManager();

        Display display = windowManager.getDefaultDisplay();

        int w = display.getWidth();

        int h = display.getHeight();  

        Bitmap Bmp = Bitmap.createBitmap( w, h, Config.ARGB_8888 );      

        //2.获取屏幕

        View decorview = this.getWindow().getDecorView();

        decorview.setDrawingCacheEnabled(true);

        Bmp = decorview.getDrawingCache();   

        String SavePath = getSDCardPath()+"/AndyDemo/ScreenImage";

        //3.保存Bitmap

        try {

            File path = new File(SavePath);

            //文件

            String filepath = SavePath + "/Screen_1.png";

            File file = new File(filepath);

            if(!path.exists()){

                path.mkdirs();

            }

            if (!file.exists()) {

                file.createNewFile();

            }  

            FileOutputStream fos = null;

            fos = new FileOutputStream(file);

            if (null != fos) {

                Bmp.compress(Bitmap.CompressFormat.PNG, 90, fos);

                fos.flush();

                fos.close();    

                Toast.makeText(CircleShareActivity.this, "截屏文件已保存至SDCard/AndyDemo/ScreenImage/下", Toast.LENGTH_LONG).show();

            }  

        } catch (Exception e) {

            e.printStackTrace();

        }

    }  

    /**

     * 获取SDCard的文件夹路径功能

     * @return

     */

    private String getSDCardPath(){

        File sdcardDir = null;

        //推断SDCard是否存在

        boolean sdcardExist = Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);

        if(sdcardExist){

            sdcardDir = Environment.getExternalStorageDirectory();

        }

        return sdcardDir.toString();

    }