Android的列表項選擇不MultiChoiceModeListener

工作，我已經實現了CAB和MultiChoiceModeListener上ListView和一切工作，除了選擇（多選）時改變列表項的背景顏色完美。這裏是我的代碼：Android的列表項選擇不MultiChoiceModeListener

listView.xml：

<ListView 
    android:id="@+id/listView" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:divider="#ebebeb" 
    android:dividerHeight="1dip" 
    android:listSelector="@drawable/list_selector"/>

list_selector：

<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
<item android:state_selected="true" android:drawable="@android:color/holo_green_light"/> 
<item android:state_pressed="true" android:drawable="@android:color/holo_blue_light"/> 
<item android:state_focused="true" android:drawable="@android:color/holo_blue_dark"/> 
<item android:drawable="@android:color/white"/> 
</selector>

片段：

l.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL); 
l.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() { 
     @Override 
     public void onItemCheckedStateChanged(android.view.ActionMode mode, int position, long id, boolean checked) { 
      int checkedCount = l.getCheckedItemCount(); 
      mode.setTitle(checkedCount + " Selected"); 
     } 

     @Override 
     public boolean onCreateActionMode(android.view.ActionMode mode, Menu menu) { 
      return true; 
     } 

     @Override 
     public boolean onPrepareActionMode(android.view.ActionMode mode, Menu menu) { 
      return false; 
     } 

     @Override 
     public boolean onActionItemClicked(android.view.ActionMode mode, MenuItem item) { 
     } 

     @Override 
     public void onDestroyActionMode(android.view.ActionMode mode) { 
     } 
    });

來源

2015-04-19 Arnes

什麼在這裏你的問題？它工作嗎？ –

編號選擇時更改背景色不起作用。 – Arnes

我所做的就是節能約項數據看如果它被選中，然後調用適配器的notifyDataSetChanged以再次創建視圖。在我的情況下，它是關於更改項目列表中的圖標。

這是相關MultiChoiceModeListener部分：

mylist.setMultiChoiceModeListener(new MultiChoiceModeListener() 
    { 

     private int numberOfSelected = 0; 

     @Override 
     public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) 
     { 
      // Here you can do something when items are 
      // selected/de-selected, 
      // such as update the title in the CAB 
      if (checked) 
      { 
       numberOfSelected++; 
      } else 
      { 
       numberOfSelected--; 
      } 
      mode.setTitle(numberOfSelected + " items selected"); 
      itemsData.get(position).isChecked = checked; //a collection of data item's status 
      m_listAdapter.notifyDataSetChanged(); 
     } 
     ...

而這就是我在做的適配器：

@Override 
    public View getView(int position, View convertView, ViewGroup parent) 
    { 

     View vi = convertView; 
     if (vi == null) 
     { 
      vi = m_inflater.inflate(R.layout.item_view, null); 
     } 

     ImageView theIcon = (ImageView) vi.findViewById(R.id.icon); 
     if (dataItems.get(position).isChecked) 
     { 
      theIcon.setImageResource(R.drawable.icon1); 
     } else 
     { 
      contactIcon.setImageResource(R.drawable.icon2); 
     } 
     return vi; 
    }

所以我只是選擇一個項目之後再次打造的列表項。

來源

2015-05-05 14:50:22

Android的列表項選擇不MultiChoiceModeListener

回答

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