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Question

내 응용 프로그램에서 CustomAdapter를 사용하여 ListView의 레이아웃을 설정하려고합니다.

이 내 오류 로그입니다 :

05-09 19:17:50.187: E/AndroidRuntime(32063): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.unserekinder/com.example.unserekinder.Ereignisse}: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it. 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.app.ActivityThread.access$600(ActivityThread.java:141) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.os.Handler.dispatchMessage(Handler.java:99) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.os.Looper.loop(Looper.java:137) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.app.ActivityThread.main(ActivityThread.java:5041) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at java.lang.reflect.Method.invokeNative(Native Method) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at java.lang.reflect.Method.invoke(Method.java:511) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at dalvik.system.NativeStart.main(Native Method) 
05-09 19:17:50.187: E/AndroidRuntime(32063): Caused by: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it. 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.database.CursorWindow.nativeGetString(Native Method) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.database.CursorWindow.getString(CursorWindow.java:434) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:51) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at com.example.unserekinder.Ereignisse.datenfuerlistviewereignis(Ereignisse.java:51) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at com.example.unserekinder.Ereignisse.onCreate(Ereignisse.java:29) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.app.Activity.performCreate(Activity.java:5104) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 
05-09 19:17:50.187: E/AndroidRuntime(32063): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 
05-09 19:17:50.187: E/AndroidRuntime(32063): ... 11 more 

이것은 EreignislistAdapter라고 내 CustomAdapter입니다 :

public class EreignislistAdapter extends BaseAdapter 
{ 
    private final ArrayList<Ereignis> values; 
    private final LayoutInflater inflator; 

    public EreignislistAdapter (Context context, ArrayList<Ereignis> values){ 
     this.inflator = LayoutInflater.from(context); 
     this.values = values; 
    } 

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

     if(convertView == null){ 
      convertView = inflator.inflate(R.layout.list_ereignis, parent, false); 
      holder = new ViewHolderEreignis((TextView) convertView.findViewById(R.id.enullline), (TextView) convertView.findViewById(R.id.efirstLine)); 

      convertView.setTag(holder); 
     } 
     else{ 
      holder = (ViewHolderEreignis) convertView.getTag(); 
     } 

     Ereignis ki = (Ereignis) getItem(position); 
     holder.getEreignisname().setText(ki.getEreignisname()); 
     holder.getEreignisdatum().setText(ki.getEreignisZeit()); 


     return convertView; 

    } 

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


    @Override 
    public Object getItem(int position) { 
     return values.get(position); 
    } 


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



} 

class ViewHolderEreignis { 
    private TextView ereignisname = null; 
    private TextView ereignisdatum = null; 



    public ViewHolderEreignis(TextView ereignisname, TextView ereignisdatum) { 
     this.ereignisname = ereignisname; 
     this.ereignisdatum = ereignisdatum; 

    } 

    public TextView getEreignisname() { 
     return this.ereignisname; 
    } 
    public TextView getEreignisdatum(){ 
     return this.ereignisdatum; 
    }  
} 

그리고 이것은 내 어댑터가

public static final String ereignisid = "id"; 
    public static final String TABLE_NAME_EREIGNIS="ereignis"; 
    public static final String EREIGNISNAME = "ereignisname"; 
    public static final String EREIGNISZEIT = "ereigniszeit"; 
    public static final String EREIGNISGENAUERES = "ereignisgenaueres"; 
    public static final String KINDID = "kindid"; 

    private static final String TABLE_EREIGNIS_CREATE = "CREATE TABLE IF NOT EXISTS " + TABLE_NAME_EREIGNIS + " (" + ereignisid + " INTEGER PRIMARY KEY AUTOINCREMENT, " 
      + EREIGNISNAME + " TEXT, " + EREIGNISZEIT + " TEXT, " + EREIGNISGENAUERES + " TEXT, " + KINDID + " INTEGER, FOREIGN KEY (" + KINDID + ") REFERENCES " + TABLE_NAME_Kind + "(" + id + "));"; 

라고 내 DBHelper 문이다 이렇게 :

final ListView lv = (ListView) findViewById(R.id.lvEreignisse); 
      ArrayList<Ereignis> kisi = datenfuerlistviewereignis(); 
      EreignislistAdapter kiadapter = new EreignislistAdapter(this, kisi); 
      lv.setAdapter(kiadapter); 



Here is `datenfuerlistviewereignis`: 

private ArrayList<Ereignis> datenfuerlistviewereignis(){ 
     DBHelper db = new DBHelper(this); 
     ArrayList<Ereignis> arr = new ArrayList<Ereignis>(); 
     ListView lv = (ListView) findViewById(R.id.lvEreignisse); 
     id = getIntent().getIntExtra("kinderid", 0); 
     Cursor c = db.selectEreignis(id); 
     int count = c.getCount(); 
     System.out.println("SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" +count); 

     int i = 0; 

     while(c.moveToNext()) 
     { 

      arr.add(new Ereignis(c.getString(c.getColumnIndex("ereigniszeit")), c.getString(c.getColumnIndex("ereignisname")))); 


      i++; 
     } 
     if(arr.size() > 0){ 
      return arr; 
     } 
     else{ 
      ArrayList<Ereignis> arrempty = new ArrayList<Ereignis>(); 
      arrempty.add(new Ereignis("Keine Daten vorhanden", " ")); 
      return arrempty; 
     } 
    } 

그래서 ArrayList에 Ereignis을 추가하려고하면 문제가 있다는 것을 알고 있습니다. 나는 또한 성명서 작성과 관련이 있다고 생각하지만 실수를 못 찾는다. 누군가 나를 도울 수 있습니까?

Answer 1

전화

c.moveToFirst(); 

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