Android ActionBar圖標不顯示

我很沮喪，每件事都設置正確，甚至在渲染（使用Android Studio）時會顯示動作欄圖標，但是當我在物理智能手機上運行它時（pocket neo 4.1.2）它只顯示ic-launcher和標題什麼是解決方案？Android ActionBar圖標不顯示

activity_main_actions.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto"> 
    <!-- Search Widget --> 
    <item android:id="@+id/action_search" 
     android:icon="@drawable/ic_action_b" 
     android:title="@string/action_search" 
     app:showAsAction="ifRoom" 
     /> 
    <!-- Location Found --> 
    <item android:id="@+id/action_location_found" 
     android:icon="@drawable/ic_action_location_found" 
     android:title="@string/action_new" 
     app:showAsAction="ifRoom" /> 
</menu>

main_activity.xml '

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:layout_width="match_parent" android:layout_height="match_parent" 
    tools:context=".MainActivity"> 

</RelativeLayout>

` MainActivity.java

public class MainActivity extends Activity { 

    private ActionBar actionBar; 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main_activity); 


     actionBar = getActionBar(); 

     // Hide the action bar title 


     actionBar.setIcon(R.mipmap.ic_launcher); 
    } 
    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     getMenuInflater().inflate(R.menu.activity_main_actions, menu); 

     return super.onCreateOptionsMenu(menu); 
    } 


}

來源

2015-03-25 Anas Tawtaw

您正在以編程方式將它設置爲ic_launcher您期望什麼？ actionBar.setIcon（R.mipmap.ic_launcher）; – 2015-03-25 01:36:02

我的意思是其他圖標 – 2015-03-25 01:40:20

它是ic_action_b和ic_action_location_found？ – 2015-03-25 01:41:36