沉浸式状态栏相关

1.完全隐藏状态栏
在Activity中添加

protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_main);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
               WindowManager.LayoutParams.FLAG_FULLSCREEN); //隐藏状态栏
    }

2.沉浸式状态栏（Android 4.4之后）
xml 属性中添加

android:clipToPadding="true"
android:fitsSystemWindows="true"

Activity中添加

 private void initState() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            //透明状态栏
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            //透明导航栏
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
        }
    }