Java android listView點擊後，選擇消失

Question

我想這樣做：我有一個列表，每兩個項目的顏色是不同的，並希望選擇被點擊的項目。所選的項目被高亮顯示之後卻老色彩還原被釋放

我這樣做： artists_list_background_alternate.xml：

<?xml version="1.0" encoding="utf-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 

<item 
    android:state_selected="false" 
    android:state_pressed="false" 
    android:drawable="@color/sign_out_color" /> 

<item android:state_pressed="true" 
    android:drawable="@color/survey_toplist_item" /> 

<item android:state_selected="true" 
    android:state_pressed="false" 
    android:drawable="@color/survey_toplist_item" /> 

</selector> 

artists_list_backgroundcolor.xml：

<?xml version="1.0" encoding="utf-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
    <item android:drawable="@color/grey" android:state_pressed="false" android:state_selected="false" /> 
    <item android:drawable="@color/survey_toplist_item" android:state_pressed="true" /> 
    <item android:drawable="@color/survey_toplist_item" android:state_pressed="false" android:state_selected="true" /> 
    <item android:drawable="@color/survey_toplist_item" android:state_pressed="false" android:state_selected="true" /> 
</selector> 

的Java文件代碼::

@Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     View view = convertView; 
     if (view == null) { 
      view = lInflater.inflate(R.layout.listitem, parent, false); 
     } 

     if (position % 2 == 0) { 
      view.setBackgroundResource(R.drawable.artists_list_backgroundcolor); 
     } else { 
      view.setBackgroundResource(R.drawable.artists_list_background_alternate); 
     } 

     ((TextView) view.findViewById(R.id.heading)).setText(data.get(position)); 

     return view; 
    } 


    ListView lvMain = (ListView) findViewById(R.id.list); 
     lvMain.setAdapter(adapter); 

佈局xml ::

<ListView 
     android:id="@+id/list" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:cacheColorHint="#00000000" 
     android:dividerHeight="1dp" /> 

而且我不知道我做錯了什麼

Answer 1

爲了使項目高亮顯示，您需要爲您提供ListViewchoiceMode。例如：

android:choiceMode="singleChoice" 

此外，在您的選擇器中爲狀態android:state_activated="true"添加顏色。