工具栏和DrawerLayout - 向上导航打开抽屉

Question

我的向上导航无效。 “返回” - 箭头显示在我的WinnerListActivity中，但点击后它不会返回到父项MainActivity，而是打开我的导航抽屉。没有触发Log（） - 方法。我很确定它与我的ActionBarDrawerToggle有关，但我无法弄清楚出了什么问题。有什么遗漏吗？

AndroidManifest：

<activity android:name=".activity.MainActivity" android:screenOrientation="portrait">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>
<activity android:name=".activity.WinnerListActivity" android:screenOrientation="portrait" android:parentActivityName=".activity.MainActivity" />

WinnerListActivity：

public class WinnerListActivity extends NavigationActivity {

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

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    }


    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        Log.i(TAG, "item: " + item.getItemId());
        return super.onOptionsItemSelected(item);
    }
}

NavigationActivity：

public class NavigationActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        toggle = new ActionBarDrawerToggle(
                this, drawerLayout, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);

        drawerLayout.addDrawerListener(toggle);

        toggle.syncState();
        toggle.setToolbarNavigationClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Log.i(TAG, "setToolbarNavigationClickListener");
            }
        });
    }
}

activity_winner_list.xml：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout>

    <android.support.design.widget.CoordinatorLayout>

        <android.support.design.widget.AppBarLayout>

            <android.support.design.widget.CollapsingToolbarLayout>

                <include layout="@layout/include_toolbar_cover" />
                <android.support.v7.widget.Toolbar />
            </android.support.design.widget.CollapsingToolbarLayout>
        </android.support.design.widget.AppBarLayout>

        <android.support.v4.widget.NestedScrollView>

            <android.support.v7.widget.RecyclerView />
        </android.support.v4.widget.NestedScrollView>
    </android.support.design.widget.CoordinatorLayout>

    <android.support.design.widget.NavigationView />
</android.support.v4.widget.DrawerLayout>