android - 抽屉导航 : DrawerToggle not working, DrawerList 不听

Question

我正在尝试使用抽屉导航，我已经按照官方开发者网站上的每一步操作，但仍然有两个问题:

• DrawerToggle 按下时，什么都不做
• ListView在抽屉里的item不接收点击事件

其他一切正常(甚至是打开/关闭监听器)。你能帮我找出错误吗？

import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.widget.DrawerLayout;    

public class ActTimerList extends FragmentActivity {


private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.act_timer_list);

            ---
    configureActionBarAndNavigationDrawer();

    retrieveStuff();
}

private void configureActionBarAndNavigationDrawer(){

    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    mDrawerList = (ListView) findViewById(R.id.drawer_list);
    mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
            mDrawerLayout, /* DrawerLayout object */
            R.drawable.ic_drawer, /* nav drawer icon to replace 'Up' caret */
            R.string.drawer_open, /* "open drawer" description */
            R.string.drawer_close /* "close drawer" description */
            ) {

        /** Called when a drawer has settled in a completely closed state. */
        public void onDrawerClosed(View view) {
            //Some code that works
        }

        /** Called when a drawer has settled in a completely open state. */
        public void onDrawerOpened(View drawerView) {
        }
    };
    // Set the drawer toggle as the DrawerListener
    mDrawerLayout.setDrawerListener(mDrawerToggle);
    mDrawerList.setOnItemClickListener(new ListView.OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {

            Log.d("Drawer", "Stuff clicked: " + position);  
            mDrawerList.setItemChecked(position, true);
            getActionBar().setTitle(stuff[position].name);
            mDrawerLayout.closeDrawer(mDrawerList);


        }
    });


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


@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    // Sync the toggle state after onRestoreInstanceState has occurred.
    mDrawerToggle.syncState();
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    mDrawerToggle.onConfigurationChanged(newConfig);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Pass the event to ActionBarDrawerToggle, if it returns
    // true, then it has handled the app icon touch event
    if (mDrawerToggle.onOptionsItemSelected(item)) {
        return true;
    }
    // Handle your other action bar items...

    return super.onOptionsItemSelected(item);
}



private void retrieveStuff() {

            query.findInBackground(new FindCallback<ParseObject>() { //Parse API to retrieve stuff, async
        public void done(List<ParseObject> stuffList, ParseException e) { //Callback for when the query completes
            if (e == null) {
            //This works, stuff is being loaded and the adapter is set correctly
                mDrawerList.setAdapter(new StuffAdapter(context,
                        R.layout.item_stuff, stuff));
                ---
            } 
        }
    });
}

Answer 1

解释错误:什么不正确？

这是我的一些 fragment :

    mDrawerToggle = new ActionBarDrawerToggle(
            this, 
            mDrawerLayout, 
            R.drawable.ic_drawer, 
            R.string.drawer_open,
            R.string.drawer_close) {

        public void onDrawerClosed(View view) {
            getSupportActionBar().setTitle(mTitle);
            supportInvalidateOptionsMenu();
        }

        public void onDrawerOpened(View view) {
            getSupportActionBar().setTitle(mDrawerTitle);
            supportInvalidateOptionsMenu();
        }
    };

    mDrawerLayout.setDrawerListener(mDrawerToggle);

关于 ListView 监听器:

    mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

和听众:

    private class DrawerItemClickListener implements ListView.OnItemClickListener {
         @Override
         public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
              selectItem(position);
         }
    }

和 selectItem():

  private void selectItem(int position) {
    FragmentManager fragmentManager = getSupportFragmentManager();


    fragmentTrnsaction = fragmentManager.beginTransaction();

    switch (position) {

    case 0:
        <some code>
        break;
    case 1:
        <some code>
        break;

    case 2:
        <some code>
        break;

    case 3:
        <some code>
        break;

    default:
        break;
    }


    mDrawerList.setItemChecked(position, true);

    mDrawerLayout.closeDrawer(mDrawerList);
}