解決android6.0打開攝像頭權限"Failed to connect to camera service"的問題 ,動態獲取權限

android6.0使用camera.open()時需要在onCreate()裏面添加如下代碼，否則會報錯"Failed to connect to camera service"：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (checkSelfPermission(Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                requestPermissions(new String[] {Manifest.permission.CAMERA}, 1);
            }
        }

幾行代碼輕鬆搞定