自定义列表视图适配器不工作

我已经在自定义布局的应用中实现了一个列表视图，所以我需要一个自定义的适配器。现在我的应用程序在试图填充此列表视图时不断崩溃。自定义列表视图适配器不工作

这是我的活动：

public class PersonalResultsActivity extends Activity { 
     private PersonalResultsAdapter resultListAdapter; 
     private ListView resultListView; 

     @Override 
     public void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 

      setContentView(R.layout.personal_results); 
      resultListView = (ListView)findViewById(R.id.pers_res_list); 

      resultListAdapter = new PersonalResultsAdapter(this); 
      resultListView.setAdapter(resultListAdapter); 
     } 
    }

这是我的适配器类：

public class PersonalResultsAdapter extends ArrayAdapter<Result> { 
     private Context context; 
     private List<Result> results; 

     private LayoutInflater mInflater; 
     private boolean mNotifyOnChange = true; 

     private String username; 

     private Student student; 
     private TestData test; 

     public PersonalResultsAdapter(Context context) { 
      super(context, R.layout.result_item_row); 

      test = LoginActivity.testData; 
      username = LoginActivity.loadPreferences(context); 
      student = test.getStudent(username); 

      results = student.getResults(); 

      this.context = context; 
      this.mInflater = LayoutInflater.from(context); 
     } 

     @Override 
     public int getCount() { 
      return results .size(); 
     } 

     @Override 
     public Result getItem(int position) { 
      return results .get(position); 
     } 

     @Override 
     public long getItemId(int position) { 
      return position; 
     } 

     @Override 
     public int getPosition(Result item) { 
      return results .indexOf(item); 
     } 

     @Override 
     public int getViewTypeCount() { 
      return 1; //Number of types + 1 !!!!!!!! 
     } 

     @Override 
     public int getItemViewType(int position) { 
      return 1; 
     } 

     @Override 
     public View getView(int position, View convertView, ViewGroup parent) { 
      final ViewHolder holder; 
      int type = getItemViewType(position); 
      if (convertView == null) { 
       holder = new ViewHolder(); 
       switch (type) { 
        case 1: 
         convertView = mInflater.inflate(R.layout.result_item_row,parent, false); 
         holder.date = (TextView) convertView.findViewById(R.id.pers_res_date); 
         holder.meeting = (TextView) convertView.findViewById(R.id.pers_res_meet); 
         holder.points = (TextView) convertView.findViewById(R.id.pers_res_points); 
         break; 
       } 
       convertView.setTag(holder); 
      } else { 
       holder = (ViewHolder) convertView.getTag(); 
      } 

      Time temp = results.get(position).getDate(); 
      String strDate = temp.year + "/" + temp.month + "/" + temp.monthDay; 

      holder.date.setText(strDate); 
      holder.meeting.setText(results.get(position).getMeeting().getName()); 
      holder.points.setText(results.get(position).getScore()); 
      holder.pos = position; 

      return convertView; 
     } 

     @Override 
     public void notifyDataSetChanged() { 
      super.notifyDataSetChanged(); 
      mNotifyOnChange = true; 
     } 

     public void setNotifyOnChange(boolean notifyOnChange) { 
      mNotifyOnChange = notifyOnChange; 
     } 

     static class ViewHolder { 
      TextView date; 
      TextView meeting; 
      TextView points; 
      int pos; //to store the position of the item within the list 
     } 
    }

布局：ListView项的

 </TableRow> 
     </TableLayout> 
     <ListView 
       android:id="@+id/pers_res_list" 
       android:background="@drawable/border" 
       android:layout_height="280dp" 
       android:layout_width="250dp" 
       android:layout_gravity="center"/> 
    </LinearLayout>

自定义布局：

<?xml version="1.0" encoding="utf-8"?> 

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
      android:id="@+id/pers_res_view" 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:orientation="vertical" 
      android:gravity="center" 
      android:background="@color/background" 
      android:layout_gravity="center"> 

     <TextView 
       android:id="@+id/pers_res_date" 
       android:textSize="16dp" 
       android:gravity="center" 
       android:background="@drawable/border" 
       android:layout_width="100dp" 
       android:layout_height="40dp"/> 
     <TextView 
       android:id="@+id/pers_res_meet" 
       android:textSize="16dp" 
       android:gravity="center" 
       android:background="@drawable/border" 
       android:layout_width="75dp" 
       android:layout_height="40dp" 
       android:layout_toRightOf="@id/pers_res_date"/> 
     <TextView 
       android:id="@+id/pers_res_points" 
       android:textSize="16dp" 
       android:gravity="center" 
       android:background="@drawable/border" 
       android:layout_width="75dp" 
       android:layout_height="40dp" 
       android:layout_toRightOf="@id/pers_res_meet"/> 
    </RelativeLayout>

的logcat：

05-27 13:13:44.608: E/AndroidRuntime(15189): FATAL EXCEPTION: main 
    05-27 13:13:44.608: E/AndroidRuntime(15189): android.content.res.Resources$NotFoundException: String resource ID #0x1a9 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.content.res.Resources.getText(Resources.java:247) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.TextView.setText(TextView.java:3652) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at com.isf.SchoolCup.Adapter.PersonalResultsAdapter.getView(PersonalResultsAdapter.java:114) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.AbsListView.obtainView(AbsListView.java:2216) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.ListView.makeAndAddView(ListView.java:1774) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.ListView.fillDown(ListView.java:672) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.ListView.fillFromTop(ListView.java:732) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.ListView.layoutChildren(ListView.java:1625) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.AbsListView.onLayout(AbsListView.java:2046) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.View.layout(View.java:11418) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.ViewGroup.layout(ViewGroup.java:4224) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.LinearLayout.onLayout(LinearLayout.java:1399) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.View.layout(View.java:11418) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.ViewGroup.layout(ViewGroup.java:4224) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.FrameLayout.onLayout(FrameLayout.java:431) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.View.layout(View.java:11418) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.ViewGroup.layout(ViewGroup.java:4224) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.LinearLayout.onLayout(LinearLayout.java:1399) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.View.layout(View.java:11418) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.ViewGroup.layout(ViewGroup.java:4224) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.widget.FrameLayout.onLayout(FrameLayout.java:431) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.View.layout(View.java:11418) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.ViewGroup.layout(ViewGroup.java:4224) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1628) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2585) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.os.Handler.dispatchMessage(Handler.java:99) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.os.Looper.loop(Looper.java:137) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at android.app.ActivityThread.main(ActivityThread.java:4507) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at java.lang.reflect.Method.invokeNative(Native Method) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at java.lang.reflect.Method.invoke(Method.java:511) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557) 
    05-27 13:13:44.608: E/AndroidRuntime(15189): at dalvik.system.NativeStart.main(Native Method) 
    05-27 13:13:44.633: E/android.os.Debug(5871): [email protected] > dumpstate -k -t -n -z -d -o /data/log/dumpstate_app_error 
    05-27 13:13:44.658: E/GlsClient-query(8461): requestFailed

来源

2013-05-27 Maarten Meeusen

你有一些logcat？ –

是啊，对不起，我忘了 –

PersonalResultsAdapter中的第114行是什么？ –

越来越NullPointerException我猜你在下面一行出现错误：

holder.points.setText(results.get(position).getScore());

试试这个：

holder.points.setText(Integer.toString(results.get(position).getScore()));

出现此错误的原因setText(int rescourceID)要求一个recource id ...并且给出一个不在R.java中的随机int。

来源

2013-05-27 11:37:35

这样做了！我收到一个整数，它必须是一个字符串。谢谢！ –

很高兴。只要它是有效的资源ID，您也可以给出一个int。 –

您have'nt初始化架对象getView()当convertView为空。这就是为什么你会在这条线

holder.date = (TextView) convertView.findViewById(R.id.pers_res_date);

来源

2013-05-27 11:18:01 bakriOnFire

我在getView（）的开头初始化了持有者。还是一样的错误.. –

自定义列表视图适配器不工作

回答

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