ListView.getCheckedItemPositions无法返回已检查项SparseBooleanArray

问题描述：

我尝试读取多个checkboxes列表中的联系人，但是当我调用sparsebooleanarray ..它只是返回false为所有列表条目，将在S检查......我看着这个线程Why is ListView.getCheckedItemPositions() not returning correct values? ......但是，当我实现addClickHandlerToCheckBox它迫使stops..this已被窃听我4 days..please任何帮助..ListView.getCheckedItemPositions无法返回已检查项SparseBooleanArray

public void populateContactList() { 
    // Build adapter with contact entries 
    final Cursor cursor = getContacts(); 
    String[] fields = new String[] { 
      ContactsContract.Data.DISPLAY_NAME 
    }; 

    SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.contact_entry, cursor, 
      fields, new int[] {R.id.contactEntryText}); 
    mContactList.setAdapter(adapter); 
    mContactList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); 



    proceedButton.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 


      SparseBooleanArray checked=mContactList.getCheckedItemPositions(); 

      int len = mContactList.getCount(); 


      for(int i=0;i<len;i++) 
      { 

       if(checked.get(i)==true) 
       { 

        String item = mContactList.getAdapter().getItem(checked.keyAt(i)).toString(); 
        edt.append(","+item); 

       } 


      } 
     } 



    });     
}

答

我认为你应该使用列表适配器视图。

它会给onCheckedChanged监听器，所以你也会得到这个位置。

像...

holder.checkBox.setOnCheckedChangeListener(new OnCheckedChangeListener() { 

      @Override 
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
       int cupos = position+1; 

      } 
     });

现在来看整个例如：

Listview.setAdapter(new settingsBase(getApplicationContext())); 

private class settingsBase extends BaseAdapter{ 

    public settingsBase(Context context) { 
     layoutInflater = LayoutInflater.from(context); 
    } 

    @Override 
    public int getCount() { 
     return listview.length; 
    } 

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

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

    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 
     ViewHolder holder ; 
    holder.checkBox.setOnCheckedChangeListener(new OnCheckedChangeListener() { 

      @Override 
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
       int cupos = position+1; 

      } 
     });   


     return convertView; 
    } 

    class ViewHolder{ 
     TextView txtSettingname , txtShow ; 
     RadioButton radioButton ; 
    }  
}

试试这个 - 它会帮助你得到的位置和检查是否真或假。

ListView.getCheckedItemPositions无法返回已检查项SparseBooleanArray

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