如何使用ListView与SherlockActivity

Question

我有一些问题，使用listview和SherlockActivity。 我的问题是，我在这条线越来越空：

ListView lv = (ListView) findViewById(R.id.mainListView); 

我的XML看起来像这样：

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/linearLa" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" > 

    <ListView android:layout_width="fill_parent" 
     android:layout_height="fill_parent" 
     android:id="@+id/mainListView"> 

    <ImageView 
     android:id="@+id/iconremove" 
     android:layout_width="50dip" 
     android:layout_height="50dip" 
     android:scaleType="centerCrop" 
     android:src="@drawable/removeicon" 
     android:visibility="gone" 
      /> 

    <TextView 
     android:id="@+id/textView" 
     android:layout_width="fill_parent" 
     android:layout_height="wrap_content" 
     android:layout_gravity="left|center_vertical" 
     android:layout_marginLeft="10dip" 
     android:layout_weight="1" 
     android:textSize="20dip" /> 
     </ListView>  
</LinearLayout> 

和我的代码看起来像这样：

public class ListRss extends SherlockActivity { 
    ActionBar actionbar; 
    @SuppressWarnings("unchecked") 
    public ArrayList<rssLinkAndTitle> ListRssLinkAndTitle=new ArrayList(); 
    //public ArrayList listValue=new ArrayList(); 
    RssArrays rssparser=new RssArrays(); 
    Context con; 
    @SuppressWarnings("unchecked") 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 


      super.onCreate(savedInstanceState); 

      actionbar=getSupportActionBar(); 
      con=getApplicationContext(); 
      ListRssAdpter listAdapter; 
     // ListView lv = getListView(); 

      ListView lv = (ListView) findViewById(R.id.mainListView); 

感谢帮帮我！

更新时间：

加入这个

super.onCreate(savedInstanceState); 
      setContentView(R.layout.titlesrss); 

，并且错误是在这条线战神：

11-17 07:57:46.341: E/AndroidRuntime(481): FATAL EXCEPTION: main 
11-17 07:57:46.341: E/AndroidRuntime(481): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.rss/com.example.rss.ListRss}: java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.access$1500(ActivityThread.java:117) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.os.Handler.dispatchMessage(Handler.java:99) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.os.Looper.loop(Looper.java:123) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.main(ActivityThread.java:3683) 
11-17 07:57:46.341: E/AndroidRuntime(481): at java.lang.reflect.Method.invokeNative(Native Method) 
11-17 07:57:46.341: E/AndroidRuntime(481): at java.lang.reflect.Method.invoke(Method.java:507) 
11-17 07:57:46.341: E/AndroidRuntime(481): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 
11-17 07:57:46.341: E/AndroidRuntime(481): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 
11-17 07:57:46.341: E/AndroidRuntime(481): at dalvik.system.NativeStart.main(Native Method) 
11-17 07:57:46.341: E/AndroidRuntime(481): Caused by: java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.widget.AdapterView.addView(AdapterView.java:461) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.rInflate(LayoutInflater.java:627) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.rInflate(LayoutInflater.java:626) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.inflate(LayoutInflater.java:408) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 
11-17 07:57:46.341: E/AndroidRuntime(481): at com.actionbarsherlock.internal.ActionBarSherlockCompat.setContentView(ActionBarSherlockCompat.java:853) 
11-17 07:57:46.341: E/AndroidRuntime(481): at com.actionbarsherlock.app.SherlockActivity.setContentView(SherlockActivity.java:229) 
11-17 07:57:46.341: E/AndroidRuntime(481): at com.example.rss.ListRss.onCreate(ListRss.java:54) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
11-17 07:57:46.341: E/AndroidRuntime(481): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611) 
11-17 07:57:46.341: E/AndroidRuntime(481): ... 11 more 

Answer 1

我想你忘了设置您的布局。所以，

后

  super.onCreate(savedInstanceState); 

添加此

  setContentView(R.layout.nameOfXmlFileYouPostedWeDontKnowTheNameOf); 

其中nameOfXmlFileYouPostedWeDontKnowTheNameOf是XML文件