從Android的ListView中刪除項目

我想從列表視圖中使用列表中的刪除按鈕刪除列表項目。刪除按鈕是我的應用程序必須的。從Android的ListView中刪除項目

數據存儲在ArrayList<HashMap<String, String>>中，所以當我單擊刪除按鈕時，數組列表中的數據將被移除該特定位置，然後調用notifyDataSetChanged()。但是在此之後，我得到了一個索引超出約束例外，因爲在我的列表視圖中只有一個項目。

請讓我知道如何停止我的應用程序崩潰並顯示一個空列表時刪除數據。

這是我的代碼請看看。

View vi = convertView; 
if (convertView == null) 
      vi = inflater.inflate(R.layout.notification_list, null); 
     TextView name = (TextView)vi.findViewById(R.id.NotifScreenName); 
     TextView message = (TextView)vi.findViewById(R.id.NotifScreenText); 
     TextView time = (TextView)vi.findViewById(R.id.NotifScreenTime); 
     ImageView image = (ImageView)vi.findViewById(R.id.NotifScreenPic); 
     Button accept = (Button)vi.findViewById(R.id.NotifScreenAccept); 
     Button decline = (Button)vi.findViewById(R.id.NotifScreenDecline); 
     name.setText(data.get(position).get("name")); 
     message.setText(data.get(position).get("text")); 
     long dv = Long.valueOf(data.get(position).get("sentTime"))*1000; 
     Date df = new java.util.Date(dv); 
     String date = new SimpleDateFormat("MMM dd, hh:mm a").format(df); 
     time.setText(date); 
     imageLoader.DisplayImage(data.get(position).get("image"), image); 
     accept.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 

      } 
     }); 
     decline.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       data.remove(position); 
       notifyDataSetChanged(); 
      } 
     });

這是logcat的輸出：

03-12 11:04:32.784: E/AndroidRuntime(1150): FATAL EXCEPTION: main 
03-12 11:04:32.784: E/AndroidRuntime(1150): java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at java.util.ArrayList.get(ArrayList.java:304) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at com.pnf.myevent.ListAdapter.getView(ListAdapter.java:95) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.AbsListView.obtainView(AbsListView.java:2143) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.ListView.makeAndAddView(ListView.java:1831) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.ListView.fillSpecific(ListView.java:1320) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.ListView.layoutChildren(ListView.java:1630) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.AbsListView.onLayout(AbsListView.java:1994) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.View.layout(View.java:14003) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewGroup.layout(ViewGroup.java:4375) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.RelativeLayout.onLayout(RelativeLayout.java:985) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.View.layout(View.java:14003) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewGroup.layout(ViewGroup.java:4375) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.RelativeLayout.onLayout(RelativeLayout.java:985) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.View.layout(View.java:14003) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewGroup.layout(ViewGroup.java:4375) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.RelativeLayout.onLayout(RelativeLayout.java:985) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.View.layout(View.java:14003) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewGroup.layout(ViewGroup.java:4375) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.FrameLayout.onLayout(FrameLayout.java:448) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.View.layout(View.java:14003) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewGroup.layout(ViewGroup.java:4375) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1663) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1521) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.LinearLayout.onLayout(LinearLayout.java:1434) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.View.layout(View.java:14003) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewGroup.layout(ViewGroup.java:4375) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.widget.FrameLayout.onLayout(FrameLayout.java:448) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.View.layout(View.java:14003) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewGroup.layout(ViewGroup.java:4375) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1892) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1711) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.Choreographer.doCallbacks(Choreographer.java:562) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.Choreographer.doFrame(Choreographer.java:532) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.os.Handler.handleCallback(Handler.java:725) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.os.Handler.dispatchMessage(Handler.java:92) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.os.Looper.loop(Looper.java:137) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at android.app.ActivityThread.main(ActivityThread.java:5039) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at java.lang.reflect.Method.invokeNative(Native Method) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at java.lang.reflect.Method.invoke(Method.java:511) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 
03-12 11:04:32.784: E/AndroidRuntime(1150):  at dalvik.system.NativeStart.main(Native Method)

來源

2013-03-12 Abhishek Dhiman

請發佈您的logcat，以便您的應用崩潰的原因可以瞭解到 – onkar 2013-03-12 11:02:38

@onkar請檢查logcat ... – 2013-03-12 11:08:32

this line data.remove（position）;數據是empy檢查之前刪除是空的或不行！ – Dinesh 2013-03-12 11:11:50

，如果你在你的下降變量的onClickListener調用data.remove(position)之前的數據是空的檢查。

編輯：它應該是data.get（position）你應該在哪裏做你的檢查，當你創建你的視圖。

來源

2013-03-12 11:15:52 smophos

我的代碼是刪除數據，但我得到這個異常的notifyDataSetChanged（）; – 2013-03-12 11:19:24

在調用data.get（位置）和所有其他數據訪問之前，檢查數據是否爲空。 – smophos 2013-03-12 11:23:38

請試試這個代碼

data.remove(position-1);

來源

2013-03-12 11:59:55 onkar

我做了類似的，但使用onContextItemSelected東西。

public boolean onContextItemSelected(MenuItem item) { 
    int itemId = item.getItemId(); 
    AdapterContextMenuInfo aInfo = (AdapterContextMenuInfo) item.getMenuInfo(); 
    planetsList.remove(aInfo.position) 
    aAdpt.notifyDataSetChanged(); 
    return true; 
}

Where planetList是ArrayList，而aAdpt是我的自定義適配器。您可以在我的博客here和here上獲得更多信息。希望這對你有所幫助。

來源

2013-03-12 12:06:45 FrancescoAzzola

從Android的ListView中刪除項目

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