android 截屏+保存图片+权限

    public boolean setDecorViewImage(Activity activity){
        try {
            //整个手机屏幕的视图
            View view = activity.getWindow().getDecorView();
            view.setDrawingCacheEnabled(true);
            view.buildDrawingCache();

            Bitmap bitmap = view.getDrawingCache();

            // 获取状态栏高度
            Rect frame = new Rect();
            activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
            int statusBarHeight = frame.top;
            Log.i("TAG", "" + statusBarHeight);

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

            Bitmap b = Bitmap.createBitmap(bitmap, 0, statusBarHeight, width, height - statusBarHeight);
            savePic(b,activity);
//            View view = activity.getWindow().getDecorView();
//            view.setDrawingCacheEnabled(true);
//            view.buildDrawingCache();
//            Bitmap bmp = view.getDrawingCache();
//            int width = getScreenWidth(activity);
//            int height = getScreenHeight(activity);
//            Bitmap bp = null;
//            bp = Bitmap.createBitmap(bmp, 0, 0, width, height);
//            view.destroyDrawingCache();
        }catch (Exception e){
            e.printStackTrace();
            return false;
        }

        return true;
    }
//    public
    // 保存到sdcard
    private static void savePic(Bitmap b,Activity activity) {
        FileOutputStream fos = null;
        final MediaScannerConnection[] mScanner = {null};
        try {
            File appDir = new File(Environment.getExternalStorageDirectory(), "广告标识小觅");
            if (!appDir.exists()) {
                appDir.mkdir();
            }

            String strRand="" ;
            for(int i=0;i<15;i++){
                strRand += String.valueOf((int)(Math.random() * 10)) ;
            }
            Calendar calendar = Calendar.getInstance();
            //获取系统的日期
            //年
            int year = calendar.get(Calendar.YEAR);
            //月
            int month = calendar.get(Calendar.MONTH)+1;
            //日
            int day = calendar.get(Calendar.DAY_OF_MONTH);
//            String fileName = year+""+month+""+day+"-"+strRand+".jpg";
            String fileName = strRand+".jpg";
            final File file = new File(appDir, fileName);
            fos = new FileOutputStream(file);
            if (null != fos) {
                b.compress(Bitmap.CompressFormat.PNG, 80, fos);
                fos.flush();
                fos.close();
            }
            MediaStore.Images.Media.insertImage(activity.getContentResolver(),file.getAbsolutePath(), fileName, null);
            // 最后通知图库更新
            activity.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse(file.getAbsolutePath())));

            MediaScannerConnection.scanFile(activity,
                    new String[]{file.getAbsolutePath()},
                    new String[]{"image/jpeg"},
                    new MediaScannerConnection.OnScanCompletedListener() {
                        @Override
                        public void onScanCompleted(String path, Uri uri) {
                            Log.i("pgpluginMain","onScanCompleted"+path);
                        }
                    });
        } catch (Exception e){
            e.printStackTrace();
        }

    }

 

public boolean setPermissionsArray(Activity activity,String[] permission) {
        for (int i = 0 ; i < permission.length ; i ++){
            if (ContextCompat.checkSelfPermission(activity, permission[i]) != PackageManager.PERMISSION_GRANTED) {
                Log.e("权限提醒====", "没有：" +permission[i]+"----的权限-----");
                ActivityCompat.requestPermissions(activity,new String[]{permission[i]},1);
                return false;
            }else {
                Log.e("权限提醒====", "有：" +permission[i]+"----的权限-----");
            }
        }
    }