Android Development get screenshots of Current activity (reprint)

First get the bitmap format screen by using the following function:

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public Bitmap myShot(Activity activity) {        // 获取windows中最顶层的view        View view = activity.getWindow().getDecorView();        view.buildDrawingCache();         // 获取状态栏高度        Rect rect = new Rect();        view.getWindowVisibleDisplayFrame(rect);        int statusBarHeights = rect.top;        Display display = activity.getWindowManager().getDefaultDisplay();        // 获取屏幕宽和高        int widths = display.getWidth();        int heights = display.getHeight();        // 允许当前窗口保存缓存信息        view.setDrawingCacheEnabled(true);        // 去掉状态栏        Bitmap bmp = Bitmap.createBitmap(view.getDrawingCache(), 0,                statusBarHeights, widths, heights - statusBarHeights);        // 销毁缓存信息        view.destroyDrawingCache();        return bmp;    }

After you get the bitmap format picture, you can save it to the SD card, or you can display it directly on the ImageView in the following way:

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// 将bitmap转换成drawableBitmapDrawable bd=newBitmapDrawable(myShot()); imageView.setBackgroundDrawable(bd);   imageView.setImageBitmap(myShot());

If you want to write to the SD save, you can use the following method:

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private void saveToSD(Bitmap bmp, String dirName,String fileName) throws IOException {        // 判断sd卡是否存在        if (Environment.getExternalStorageState().equals(                Environment.MEDIA_MOUNTED)) {            File dir = new File(dirName);            // 判断文件夹是否存在，不存在则创建            if(!dir.exists()){                dir.mkdir();            }                         File file = new File(dirName + fileName);            // 判断文件是否存在，不存在则创建            if (!file.exists()) {                file.createNewFile();            }                 FileOutputStream fos = null;            try {                fos = new FileOutputStream(file);                if (fos != null) {                    // 第一参数是图片格式，第二个是图片质量，第三个是输出流                    bmp.compress(Bitmap.CompressFormat.PNG, 100, fos);                    // 用完关闭                    fos.flush();                    fos.close();                }            } catch (FileNotFoundException e) {                // TODO Auto-generated catch block                e.printStackTrace();            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }        }    }

DirName is the name of the output folder, and Filaname is the file name of the output, which together form the output path, such as "/mnt/sdcard/pictures/shot.png". Also be aware of registering write permissions in Androidmanifest:

1	<uses-permissionandroid:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

Android Development Gets the current Activity screen (reprint)