启动时打开导航抽屉

Question

我对Android编程很新,开发了一个实现了导航抽屉的应用程序.根据谷歌的指导方针,我希望NavDraw能够开启,但我无法做到这一点.

这是我的onCreate(我想这是我应该实现这个功能的地方,对吧？)

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActionBar().getThemedContext(), android.R.layout.simple_list_item_1, menuEntries);

    final DrawerLayout drawer = (DrawerLayout)findViewById(R.id.drawer_layout);
    final ListView navList = (ListView) findViewById(R.id.drawer);

    getActionBar().setDisplayHomeAsUpEnabled(true);
    getActionBar().setHomeButtonEnabled(true);

    drawerToggle = new ActionBarDrawerToggle(
            this,
            drawer,
            R.drawable.ic_drawer,
            R.string.drawer_open,
            R.string.drawer_close
    ) 

(......)

Answer 1

使用 drawer.openDrawer(Gravity.LEFT);