应用程序启动后如何隐藏抽屉？

Question

我正在使用导航抽屉开发一个Android应用程序。一切正常。除了当我开始我的应用程序时，抽屉自动出现。我试图解决这个问题：

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mNavigationDrawerFragment = (NavigationDrawerFragment) getFragmentManager()
            .findFragmentById(R.id.navigation_drawer);
    mTitle = getTitle();

    // Set up the drawer.
    DrawerLayout mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    mNavigationDrawerFragment.setUp(R.id.navigation_drawer,
            mDrawerLayout);

    // as a solution I added this if-statement
    if(mDrawerLayout.isDrawerOpen(GravityCompat.START)) {
        mDrawerLayout.closeDrawers();
    }

    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}

但它不起作用！ 。一旦applilication开始，如何隐藏它？

Answer 1

mDrawerLayout.closeDrawer(GravityCompat.START);

Answer 2

您可以使用以下代码：

DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
    drawer.closeDrawer(GravityCompat.START);