沉浸式状态栏

Android 5.0以后才能用，所以要加个判断Build.VERSION.SDK_INT >= 21

    if (Build.VERSION.SDK_INT >= 21) {       View decorView = getWindow().getDecorView();        int option = View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION                | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN                | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;        decorView.setSystemUiVisibility(option);        getWindow().setNavigationBarColor(Color.TRANSPARENT);        getWindow().setStatusBarColor(Color.TRANSPARENT);    }    ActionBar actionBar = getSupportActionBar();    actionBar.hide();![示例图：](http://img.blog.csdn.net/20161101103609740)