Android 透明狀態欄

if(VERSION.SDK_INT >= VERSION_CODES.KITKAT) {    //4.4以上
                                //透明狀態欄
                                getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
                                //透明導航欄
                                getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
                        }