更改底部菜單項的背景

Question

如何更改出現在底部的菜單項的背景，點擊

我使用ActionBarSherlock和頂部動作條有一個設備菜單按鈕後，藍色背景。以爲這將是底部菜單的背景。但它的白色。看起來像默認。所以，該圖標在白色背景上看起來不太好。我如何將其更改爲藍色。

我嘗試這樣：

<item name="android:panelBackground">@drawable/blue</item> 

但沒有奏效。

謝謝。

Answer 1

我有類似的要求，我發現這個工作解決方案。使用以下

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    getMenuInflater().inflate(R.menu.menu, menu); 
    addOptionsMenuHackerInflaterFactory(); 
    return true; 
} 

@SuppressWarnings("rawtypes") 
static Class  IconMenuItemView_class = null; 
@SuppressWarnings("rawtypes") 
static Constructor IconMenuItemView_constructor = null; 

// standard signature of constructor expected by inflater of all View classes 
@SuppressWarnings("rawtypes") 
private static final Class[] standard_inflater_constructor_signature = 
new Class[] { Context.class, AttributeSet.class }; 

protected void addOptionsMenuHackerInflaterFactory() 
{ 
    final LayoutInflater infl = getLayoutInflater(); 

    infl.setFactory(new Factory() 
    { 
     public View onCreateView(final String name, 
           final Context context, 
           final AttributeSet attrs) 
     { 
      if (!name.equalsIgnoreCase("com.android.internal.view.menu.IconMenuItemView")) 
       return null; // use normal inflater 

      View view = null; 

      if (IconMenuItemView_class == null) 
      { 
       try 
       { 
        IconMenuItemView_class = getClassLoader().loadClass(name); 
       } 
       catch (ClassNotFoundException e) 
       { 
        // this OS does not have IconMenuItemView - fail gracefully 
        return null; // hack failed: use normal inflater 
       } 
      } 
      if (IconMenuItemView_class == null) 
       return null; // hack failed: use normal inflater 

      if (IconMenuItemView_constructor == null) 
      { 
       try 
       { 
        IconMenuItemView_constructor = 
        IconMenuItemView_class.getConstructor(standard_inflater_constructor_signature); 
       } 
       catch (SecurityException e) 
       { 
        return null; // hack failed: use normal inflater 
       } 
       catch (NoSuchMethodException e) 
       { 
        return null; // hack failed: use normal inflater 
       } 
      } 
      if (IconMenuItemView_constructor == null) 
       return null; // hack failed: use normal inflater 

      try 
      { 
       Object[] args = new Object[] { context, attrs }; 
       view = (View)(IconMenuItemView_constructor.newInstance(args)); 
      } 
      catch (IllegalArgumentException e) 
      { 
       return null; // hack failed: use normal inflater 
      } 
      catch (InstantiationException e) 
      { 
       return null; // hack failed: use normal inflater 
      } 
      catch (IllegalAccessException e) 
      { 
       return null; // hack failed: use normal inflater 
      } 
      catch (InvocationTargetException e) 
      { 
       return null; // hack failed: use normal inflater 
      } 
      if (null == view) // in theory handled above, but be safe... 
       return null; // hack failed: use normal inflater 


      // apply our own View settings after we get back to runloop 
      // - android will overwrite almost any setting we make now 
      final View v = view; 
      new Handler().post(new Runnable() 
      { 
       public void run() 
       { 
        v.setBackgroundDrawable(getResources().getDrawable(R.drawable.menubuttonselector)); 
         // here use your own selector drawable 
        try 
        { 
         // in Android <= 3.2, IconMenuItemView implemented with TextView 
         // guard against possible future change in implementation 
         TextView tv = (TextView)v; 
         tv.setTextColor(Color.WHITE); 
        } 
        catch (ClassCastException e) 
        { 
         // hack failed: do not set TextView attributes 
        } 
       } 
      }); 

      return view; 
     } 
    }); 
} 

注意：

這是一個黑客的解決方案。當我需要它時，我無法給予足夠的時間來查找是否有任何副作用。但它完美地服務了我。希望它會對你有所幫助