自定義表格行

我正在嘗試創建一個帶有自定義行的表格。我已經創建了2個textviews + ImageView的single_row.xml文件。我也在一個可繪製文件夾中添加了一些.png。自定義表格行

代碼導致了一個我找不出來的錯誤。是否有人對這個錯誤有所瞭解（甚至是關於代碼中的錯誤）？

package com.example.listviewwitchcustomimage; 

import android.R.drawable; 
import android.os.Bundle; 
import android.app.Activity; 
import android.content.Context; 
import android.content.res.Resources; 
import android.view.LayoutInflater; 
import android.view.Menu; 
import android.view.View; 
import android.view.ViewGroup; 
import android.webkit.WebView.FindListener; 
import android.widget.ArrayAdapter; 
import android.widget.ImageView; 
import android.widget.LinearLayout; 
import android.widget.ListView; 
import android.widget.TextView; 


public class MainActivity extends Activity { 

    ListView lv; 
    String[] titles; 
    String[] descriptions; 
    int MyImages[] = {R.drawable.a,R.drawable.b,R.drawable.c,R.drawable.d,R.drawable.e, 
      R.drawable.f,R.drawable.g,R.drawable.h,R.drawable.j}; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     Resources res = getResources(); 
     titles = res.getStringArray(R.array.title); 
     descriptions = res.getStringArray(R.array.description); 
     lv = (ListView) findViewById(R.id.listView); 

     MyCustomAdapter adapter= new MyCustomAdapter(this, titles, MyImages, descriptions); 
     lv.setAdapter(adapter); 



    } 

} 


//Maak eigen Adapter 
class MyCustomAdapter extends ArrayAdapter<String>{ 

    Context context; 
    int[] images; 
    String[] MyTitles; 
    String[] MyDescriptions; 

    //constructor for ArrayAdapter 
    MyCustomAdapter(Context c,String[] titles,int imgs[],String[] descs){ 
     super(c,R.layout.single_row,R.id.textView1,titles); 
     this.context = c; 
     this.images= imgs; 
     this.MyTitles = titles; 
     this.MyDescriptions=descs; 
    } 

    @Override 
    //At runtime moet de single_row gemaakt worden. Dat gebeurt in de getView 
    public View getView(int position, View convertView, ViewGroup parent) { 

     //Als er nog geen row gemaakt is-> converView = null. Als er al een row bestaat converView!=null 
     View row = convertView; 
     if(row==null){ 


      //Convert XML in JAVA object 
      LayoutInflater inflator=(LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE); 

      //Store java object of row in Variable. 
      //row verwijst naar de root van single_row -> <RelativeLayout> 
      row =inflator.inflate(R.layout.single_row,parent,false); 

     } 



     //middels row kan je dus de child elements bereiken/gebruiken 
     //sla referenves op in variabelen 
     ImageView image =(ImageView) row.findViewById(R.id.imageView1); 
     TextView title= (TextView) row.findViewById(R.id.textView1); 
     TextView description= (TextView) row.findViewById(R.id.textView2); 

     //Set content 
     image.setImageResource(images[position]); 
     title.setText(MyTitles[position]); 
     description.setText(position); 


     // TODO Auto-generated method stub 
     return row; 
    } 
}

的logcat：

03-26 07:50:20.834: E/Trace(10654): error opening trace file: No such file or directory (2) 
03-26 07:50:20.834: D/ActivityThread(10654): setTargetHeapUtilization:0.25 
03-26 07:50:20.834: D/ActivityThread(10654): setTargetHeapIdealFree:8388608 
03-26 07:50:20.834: D/ActivityThread(10654): setTargetHeapConcurrentStart:2097152 
03-26 07:50:21.014: D/AndroidRuntime(10654): Shutting down VM 
03-26 07:50:21.014: W/dalvikvm(10654): threadid=1: thread exiting with uncaught exception (group=0x40f3c378) 
03-26 07:50:21.044: E/AndroidRuntime(10654): FATAL EXCEPTION: main 
03-26 07:50:21.044: E/AndroidRuntime(10654): java.lang.ArrayIndexOutOfBoundsException: length=9; index=9 
03-26 07:50:21.044: E/AndroidRuntime(10654): at com.example.listviewwitchcustomimage.MyCustomAdapter.getView(MainActivity.java:93) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.widget.AbsListView.obtainView(AbsListView.java:2255) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.widget.ListView.measureHeightOfChildren(ListView.java:1270) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.widget.ListView.onMeasure(ListView.java:1182) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.View.measure(View.java:15367) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.widget.RelativeLayout.measureChild(RelativeLayout.java:607) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:420) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.View.measure(View.java:15367) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4924) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.widget.FrameLayout.onMeasure(FrameLayout.java:314) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.View.measure(View.java:15367) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.widget.LinearLayout.measureVertical(LinearLayout.java:849) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.widget.LinearLayout.onMeasure(LinearLayout.java:578) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.View.measure(View.java:15367) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4924) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.widget.FrameLayout.onMeasure(FrameLayout.java:314) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2154) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.View.measure(View.java:15367) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1858) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1106) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1279) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4223) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.Choreographer.doCallbacks(Choreographer.java:555) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.Choreographer.doFrame(Choreographer.java:525) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.os.Handler.handleCallback(Handler.java:615) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.os.Handler.dispatchMessage(Handler.java:92) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.os.Looper.loop(Looper.java:213) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at android.app.ActivityThread.main(ActivityThread.java:4787) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at java.lang.reflect.Method.invokeNative(Native Method) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at java.lang.reflect.Method.invoke(Method.java:511) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556) 
03-26 07:50:21.044: E/AndroidRuntime(10654): at dalvik.system.NativeStart.main(Native Method)

這是新的消息。 93行：image.setImageResource(images[position]);

來源

2014-03-25 Foo

線95上的內容是什麼？ – Bob

謝謝！您是如何在錯誤日誌迷宮中發現問題的？ – Foo

每個條目都有對應的行號，您只需找到包含您的包名和類名的條目，而不是android系統條目。 – Bob

似乎你在R.array.title資源中有超過9個字符串。它必須與圖像陣列中的數量相同

來源

2014-03-26 07:08:12 ant

那就是解決方案。謝謝！你能告訴我你是如何理解錯誤原因的嗎？ – Foo

你可以在你的自定義類中調用'super（c，R.layout.single_row，R.id.textView1，titles）'。之後'getView'方法將被調用多次作爲你的** titles **數組中的元素。 – ant

自定義表格行

回答

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