導航抽屜切換不會改變狀態

Question

我開始一個新項目，只需從舊項目中複製/粘貼代碼，其中一切正常。在這一個切換按鈕不會改變狀態（這是唯一的箭頭，當我按下它不工作），如：

到

打開/關閉抽屜工作正常使用刷卡觸摸

必須注意，我只使用一個具有佈局的活動：

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:id="@+id/base_layout" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
tools:context=".MainActivity"> 


<RelativeLayout 
    android:id="@+id/base_container_for_fragments" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent"> 


    //elements for screen 

</RelativeLayout> 


<!--that is just for drawer--> 
<ListView 
    android:id="@+id/navigationDrawerList" 
    android:layout_width="300dp" 
    android:layout_height="match_parent" 
    android:layout_gravity="left|start" 
    android:background="@color/color_red_style" /> 

在我的活動：

//聲明瓦爾：

private ListView mDrawerList; 
protected DrawerLayout mDrawerLayout; 
private ActionBarDrawerToggle mDrawerToggle; 
CustomDrawerAdapter adapter; 
List<DrawerItem> dataList; 

在onCreate()：

dataList = new ArrayList<DrawerItem>(); 
    mDrawerLayout = (DrawerLayout) findViewById(R.id.base_layout); 
    mDrawerList = (ListView) findViewById(R.id.navigationDrawerList); 

    addDrawerItems(); 
    setupDrawer(); 
    getSupportActionBar().setDisplayHomeAsUpEnabled(true); 
    getSupportActionBar().setHomeButtonEnabled(true); 

addDrawerItems()好的工作

protected void setupDrawer() { 
    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.string.open_drawer, R.string.close_drawer) { 

     /** Called when a drawer has settled in a completely open state. */ 
     public void onDrawerOpened(View drawerView) { 
      super.onDrawerOpened(drawerView); 
      getSupportActionBar().setTitle(getResources().getString(R.string.bar_menu)); 
      invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu() 
     } 

     /** Called when a drawer has settled in a completely closed state. */ 
     public void onDrawerClosed(View view) { 
      super.onDrawerClosed(view); 
      getSupportActionBar().setTitle("produse"); 


      // creates call to onPrepareOptionsMenu() 
      invalidateOptionsMenu(); 
     } 
    }; 

    mDrawerToggle.setDrawerIndicatorEnabled(true); 
    mDrawerLayout.setDrawerListener(mDrawerToggle); 
} 

，當然我把撥動手柄在onOptionsItemSelected(MenuItem item)

// Activate the navigation drawer toggle 
    if (mDrawerToggle.onOptionsItemSelected(item)) { 
     return true; 
    } 

那麼，有什麼問題，我只是無法實現...任何想法將不勝感激。

Answer 1

OMG，我忘了同步按鈕切換狀態:)

我必須在我的MainActivity()補充一點：

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