带有复选框的Android ListView在检查时松动检查的项目

我面临着一个问题，它是关于在列表视图中检查检查项目时我sc the着列表，我不知道该怎么办。带有复选框的Android ListView在检查时松动检查的项目

这里是我的自定义接口的代码：

public class SPCKontrola extends Activity { 
ArrayList<Integer> yourSelectedItems= new ArrayList<Integer>(); 

@Override 
     public void onResume() { 
      super.onResume(); 

      yourSelectedItems.clear(); 

     } 
} 

public class SPCMjereAdapter extends BaseAdapter 
    { 
     private Context context; 

     public SPCMjereAdapter(Context c) 
     {   
      context = c;      
     } 

     public int getCount() { 
      return MyArrList.size(); 
     } 

     public Object getItem(int position) { 
      return position; 
     } 

     public long getItemId(int position) { 
      return position; 
     } 
     public View getView(final int position, View convertView, ViewGroup parent) { 

      LayoutInflater inflater = (LayoutInflater) context 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

      if (convertView == null) { 
       convertView = inflater.inflate(R.layout.activity_list_row, null); 

      } 

      TextView txtOpis = (TextView) convertView.findViewById(R.id.ColOpis); 
      txtOpis.setText(MyArrList.get(position).get("OpisMjere")); 

      TextView txtRbMjere = (TextView) convertView.findViewById(R.id.ColCode); 
      txtRbMjere.setText(MyArrList.get(position).get("RbMjere")); 

      CheckBox Chk = (CheckBox) convertView.findViewById(R.id.ColChk); 
      Chk.setTag(MyArrList.get(position).get("RbMjere")); 



Chk.setOnCheckedChangeListener(new OnCheckedChangeListener() {    
        @Override 
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
         if(isChecked){ 
          yourSelectedItems.add(position); 
         }else{ 
          if(yourSelectedItems.contains(position)){            
           yourSelectedItems.remove((position));         
          } 
         } 
        } 
        }); 


      return convertView; 

     }

}

我应该改变或添加代码？我找到了一些例子，但我不能重复使用它们并在我的代码中实现：/

在此先感谢。

来源

2013-09-28 Josef

https://groups.google.com/forum/#!topic/android-developers/No0LrgJ6q2M。查看Romain Guy的评论。 – Raghunandan

hm ...似乎是一个很好的解决方案，但它扩展了ListActivity。我试图避免这一点，因为它会影响几乎完成的应用程序中的一些事情。 – Josef

我觉得我得到的东西。 ..取而代之的Chk.setOnCheckedChangeListener()我改成Chk.setOnClickListener(new OnClickListener()

public class SPCMjereAdapter extends BaseAdapter 
    { 
     private Context context; 


     public SPCMjereAdapter(Context c) 
     {   
      context = c;      
     } 

     public int getCount() { 
      return MyArrList.size(); 
     } 

     public Object getItem(int position) { 
      return position; 
     } 

     public long getItemId(int position) { 
      return position; 
     } 
     public View getView(final int position, View convertView, ViewGroup parent) { 

      LayoutInflater inflater = (LayoutInflater) context 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

      if (convertView == null) { 
       convertView = inflater.inflate(R.layout.activity_list_row, null); 

      } 

      TextView txtOpis = (TextView) convertView.findViewById(R.id.ColOpis); 
      txtOpis.setText(MyArrList.get(position).get("OpisMjere")); 

      TextView txtRbMjere = (TextView) convertView.findViewById(R.id.ColCode); 
      txtRbMjere.setText(MyArrList.get(position).get("RbMjere")); 

      final CheckBox Chk = (CheckBox) convertView.findViewById(R.id.ColChk); 


      if(yourSelectedItems.contains((position))){ 
       Chk.setChecked(true); 
      }else{ 
       Chk.setChecked(false); 
      } 

      Chk.setOnClickListener(new OnClickListener() { 

       @Override 
       public void onClick(View v) { 

        if (Chk.isChecked()) 
        { 
         yourSelectedItems.add(position); 
        } else 
        { 
         if(yourSelectedItems.contains(position)){            
          yourSelectedItems.remove((position));         
         } 
        } 

       } 
      }); 


      return convertView; 
     } 

}

现在，滚动向上/向下时工作正常。但还有一个问题，我有点困惑。当滚动和随机选中/取消项目的程序崩溃，这些错误我得到：

FATAL EXCEPTION: main 
java.lang.IndexOutOfBoundsException: Invalid index 2, size is 2 
at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251) 
at java.util.ArrayList.remove(ArrayList.java:399) 
at com.dem.spckontrola.SPCKontrola$SPCMjereAdapter$1.onClick(SPCKontrola.java:830) 
at android.view.View.performClick(View.java:4084) 
at android.widget.CompoundButton.performClick(CompoundButton.java:100) 
at android.view.View$PerformClick.run(View.java:16966) 
at android.os.Handler.handleCallback(Handler.java:615) 
at android.os.Looper.loop(Looper.java:137) 
at android.app.ActivityThread.main(ActivityThread.java:4745) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:511) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
at dalvik.system.NativeStart.main(Native Method

）

确定。我解决了这个加yourSelectedItems.remove(yourSelectedItems.indexOf(position));

所以现在正确的解决办法是：

public class SPCMjereAdapter extends BaseAdapter 
    { 
     private Context context; 


     public SPCMjereAdapter(Context c) 
     {   
      context = c;      
     } 

     public int getCount() { 
      return MyArrList.size(); 
     } 

     public Object getItem(int position) { 
      return position; 
     } 

     public long getItemId(int position) { 
      return position; 
     } 
     public View getView(final int position, View convertView, ViewGroup parent) { 

      LayoutInflater inflater = (LayoutInflater) context 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

      if (convertView == null) { 
       convertView = inflater.inflate(R.layout.activity_list_row, null); 

      } 

      TextView txtOpis = (TextView) convertView.findViewById(R.id.ColOpis); 
      txtOpis.setText(MyArrList.get(position).get("OpisMjere")); 

      TextView txtRbMjere = (TextView) convertView.findViewById(R.id.ColCode); 
      txtRbMjere.setText(MyArrList.get(position).get("RbMjere")); 

      final CheckBox Chk = (CheckBox) convertView.findViewById(R.id.ColChk); 


      if(yourSelectedItems.contains((position))){ 
       Chk.setChecked(true); 
      }else{ 
       Chk.setChecked(false); 
      } 

      Chk.setOnClickListener(new OnClickListener() { 

       @Override 
       public void onClick(View v) { 

        if (Chk.isChecked()) 
        { 
         yourSelectedItems.add(position); 
        } else 
        { 
         if(yourSelectedItems.contains(position)){            
          yourSelectedItems.remove(yourSelectedItems.indexOf(position));         
         } 
        } 

       } 
      }); 


      return convertView; 
     } 

}

但现在我有新的问题面对：如何让所有的检查，未经检查的项目列表，其中一些复选框（项目）由于列表视图中的许多项目不可见，只有向下滚动时才可见？

来源

2013-09-29 18:04:26 Josef

为此，你必须保持一个数组变量yourSelectedItems[]用于存储你有checked..and把这样的情况在你getView()方法的视图位置..

你可以管理你的阵列在getView()编写这个方法..

check.setOnCheckedChangeListener(new OnCheckedChangeListener() {    
    @Override 
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
     if(isChecked){ 
      yourSelectedItems.add(position); 
     }else{ 
      if(yourSelectedItems.contains(position)){            
       yourSelectedItems.remove((position));         
      } 
     } 
    });

来源

2013-09-28 17:45:29 Vikram

不幸的是，这不起作用。如果我选择第一个项目而不是向下滚动列表，它会自动检查其他项目。如果我回到列表的首位，那么该项目不再被检查。 – Josef

它不应该像那样......你可以发布你改变后的代码......？ – Vikram

我刚刚添加ArrayList yourSelectedItems = new ArrayList （）; 并按照您的建议对getView（）进行更改。 – Josef

尝试这个例子的列表视图与复选框：http://lalit3686.blogspot.in/2012/06/today-i-am-going-to-show-how-to-deal.html

来源

2013-09-28 17:50:45

如果你在你的listView.onItemSelectedListner中使用了getView，你将会面临这个问题 listView并没有把每个对象放在不同的视图中，这就是为什么当你调用getView（2）它会返回列表的第二个对象的视图屏幕没有列表的第二个对象的视图上...你必须使用你的类

来源

2013-09-28 18:41:48 Rehan

一些布尔值或复选框为了避免在ListView的CheckBox 的问题，你可以采取一个布尔实现它自己数组初始化为假，然后在数组中确定对应的位置，其中复选框被选中在ListView中。这不会引起麻烦的复选框的选中状态，当你向前和向后移动的应用程序或滚动ListView.You可以查看这里的示例代码：

Android checkbox multiselected issue

来源

2013-09-28 20:25:01

这发生在我身上，我解决这个wtih ，

1.创建一个全局布尔型数组列表并在构造函数中用MyArrList.size（）填充它。

2.当您更改复选框值设置视图索引arratlist。

3.Change这样的：

CheckBox Chk = (CheckBox) convertView.findViewById(R.id.ColChk); 
Chk.setTag(MyArrList.get(position).get("RbMjere"));

与此：

CheckBox Chk = (CheckBox) convertView.findViewById(R.id.ColChk); 
Chk.setTag(MyArrList.get(position).get("RbMjere")); 
Chk.setChecked(commentTexts.get(position));

来源

2013-09-28 21:24:01 invisbo

改变你的getview（）这一个...

 public View getView(final int position, View convertView, ViewGroup parent) { 

      LayoutInflater inflater = (LayoutInflater) context 
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 

      if (convertView == null) { 
       convertView = inflater.inflate(R.layout.activity_list_row, null); 

      } 

      TextView txtOpis = (TextView) convertView.findViewById(R.id.ColOpis); 
      txtOpis.setText(MyArrList.get(position).get("OpisMjere")); 

      TextView txtRbMjere = (TextView) convertView.findViewById(R.id.ColCode); 
      txtRbMjere.setText(MyArrList.get(position).get("RbMjere")); 

      CheckBox Chk = (CheckBox) convertView.findViewById(R.id.ColChk); 


      if(yourSelectedItems.contains((position))){ 
       Chk.setChecked(true); 
      }else{ 
       Chk.setChecked(false); 
      } 

      Chk.setOnCheckedChangeListener(new OnCheckedChangeListener() {    
        @Override 
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
         if(isChecked){ 
          yourSelectedItems.add(position); 
         }else{ 
          if(yourSelectedItems.contains(position)){            
           yourSelectedItems.remove((position));         
          } 
         } 
        } 
        }); 


      return convertView; 

     }

来源

2013-09-29 11:22:21 Vikram

不幸的是，这不会工作... :(再次有时丢失检查项目的状态，有时断行yourSelectedItems.remove（（位置））setOnCheckedChangeListener（） – Josef

带有复选框的Android ListView在检查时松动检查的项目

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