導航視圖不調用onNavigationItemSelected方法

我在DrawerLayout中使用NavigationView，我不確定是否忘記了某些內容，但只是點擊時隱藏導航。導航視圖不調用onNavigationItemSelected方法

這是我的代碼：

MainActivity.java：

private void instantiateDrawerLayout() { 
     Toolbar mToolbar = (Toolbar) generalContent.findViewById(R.id.toolbar); 
     mToolbar.setBackgroundColor(getResources().getColor(R.color.colorMainActivity)); 
     setSupportActionBar(mToolbar); 
     NavigationView navigationView = (NavigationView) findViewById(R.id.navigation_view); 
     navigationView.setItemIconTintList(ColorStateList.valueOf(getResources().getColor(R.color.colorMainActivity))); 
     navigationView.setNavigationItemSelectedListener(this); 
     Log.d("instantiateDrawerLayout", "called"); 
     ActionBarDrawerToggle drawerToggle = new ActionBarDrawerToggle(this, mDrawer, mToolbar, R.string.drawer_open, R.string.drawer_close); 
     mDrawer.setDrawerListener(drawerToggle); 
     drawerToggle.syncState(); 
     ... 
    } 

    @Override 
    public boolean onNavigationItemSelected(MenuItem menuItem) { 
    Log.d("onNavigationItem", "called"); 
    final int itemId = menuItem.getItemId(); 
    Intent intent; 
    switch (itemId) { 
     case R.id.navigation_item_1: 
      hideDrawer(); 
      break; 
     case R.id.navigation_item_2: 
      intent = new Intent(this, FirstActivity.class); 
      startActivity(intent); 
      this.finish(); 
      break; 
     case R.id.navigation_item_3: 
      intent = new Intent(this, SecondActivity.class); 
      startActivity(intent); 
      this.finish(); 
      break; 
     case R.id.navigation_item_4: 
      intent = new Intent(this, ThirdActivity.class); 
      startActivity(intent); 
      this.finish(); 
      break; 
    } 
    return false; 
}

activity_general.xml

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="http://schemas.android.com/apk/res-auto" 
android:id="@+id/drawer_layout" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:background="@color/colorBackground"> 

<android.support.design.widget.NavigationView 
    android:id="@+id/navigation_view" 
    android:layout_width="wrap_content" 
    android:layout_height="match_parent" 
    android:layout_gravity="start" 
    app:headerLayout="@layout/drawer_header" 
    app:itemIconTint="@color/colorAccent" 
    app:menu="@menu/menu_drawer" /> 

<LinearLayout 
    android:id="@+id/main_content" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:animateLayoutChanges="true" 
    android:orientation="vertical" />

menu_drawer.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android" > 
    <!--All the items added without any grouping--> 

    <item 
     android:id="@+id/navigation_item_1" 
     android:icon="@drawable/ic_number_1" 
     android:title="@string/navigation_item_1" /> 
    <item 
     android:id="@+id/navigation_item_2" 
     android:icon="@drawable/ic_number_2" 
     android:title="@string/navigation_item_2" /> 

    <item 
     android:id="@+id/navigation_item_3" 
     android:icon="@drawable/ic_number_3" 
     android:title="@string/navigation_item_3" /> 
    <item 
     android:id="@+id/navigation_item_4" 
     android:icon="@drawable/ic_number_4" 
     android:title="@string/navigation_item_4" /> 

</menu>

和我的logcat：

enter image description here

來源

2015-12-31 Josbel Luna

爲什麼每次使用'System.gc（）'？ –

我是一個begginer，我總是試着清理內存，我開始或結束和活動。 –

這是沒有必要的，只是'完成（）'和系統將自己做所有 –