ListView与自定义布局，包括两个单选按钮

Question

我正在尝试制作一个带有翻译的测验应用程序。所以有两个数组列表，用不同的语言装载问题。

我可以在列表视图中显示它们。我的问题是，当我点击一个单选按钮时，我希望另一个单选按钮也被选中。

我使用一个ListView自定义布局与2个单选按钮。

这是ListView的ArrayAdater

private class RBAdapterClass extends ArrayAdapter<cOptions> {
private ArrayList<cOptions> fOptions;
private ArrayList<cOptions> lOptions;
private ArrayList<Boolean> mChecked;    
private int mfSelectedPosition = -1;
private RadioButton mfSelectedRB;   
private int mlSelectedPosition = -1;
private RadioButton mlSelectedRB;

public RBAdapterClass(Context context, int textViewResourceId, ArrayList<cOptions> lOpt, ArrayList<cOptions> fOpt)
{
    super(context,textViewResourceId,fOpt);     
    this.fOptions  =  new ArrayList<cOptions>();
    this.fOptions.addAll(fOpt);             
    this.lOptions =  new ArrayList<cOptions>();
    this.lOptions.addAll(lOpt);     
    mChecked = new ArrayList<Boolean>();
}
    class ViewHolder {      
    TextView ForeignCode;
    RadioButton ForeignName;
    TextView LocalCode;
    RadioButton LocalName;
 }

@Override
public View getView(final int position, View convertView,  ViewGroup parent) {
  final  ViewHolder holderf ;               
  Log.v("Convert View",String.valueOf(position));
  if(convertView==null){
    LayoutInflater vi = (LayoutInflater)getSystemService(
    Context.LAYOUT_INFLATER_SERVICE);
    convertView = vi.inflate(R.layout.activity_activity_rb,null);
       holderf=new ViewHolder();           
       holderf.LocalCode = (TextView) convertView.findViewById(R.id.codeLocal);
       holderf.LocalName = (RadioButton)convertView.findViewById(R.id.radioBLocal);        
       holderf.ForeignCode = (TextView) convertView.findViewById(R.id.codeForeign);        
       holderf.ForeignName =  (RadioButton)convertView.findViewById(R.id.radioBForeign);

       convertView.setTag(holderf);

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

             RadioButton rb = (RadioButton) v ;   
             if(position != mfSelectedPosition && mfSelectedRB!=null  )
             {
                 mfSelectedRB.setChecked(false);                     
                 if(mlSelectedRB!=null)
                 {
                 mlSelectedRB.setChecked(false);
                 } 
             }
             mfSelectedPosition = position;              
             mfSelectedRB = (RadioButton)v;             

             cOptions optSelected = (cOptions) rb.getTag();                  
             Toast.makeText(getApplicationContext(),"Clicked on RadioButton: " + rb.getText() +" is " + rb.isChecked(), 
             Toast.LENGTH_LONG).show();
             optSelected.setSeleted(rb.isChecked());  

             holderf.ForeignName.setChecked(rb.isChecked());                                
             holderf.LocalName.setChecked(rb.isChecked());

         }  
        });

       holderf.LocalName.setOnClickListener( new View.OnClickListener() {                      
           public void onClick(View v) {  
             if(position != mlSelectedPosition && mlSelectedRB!=null)
             {
                 mlSelectedRB.setChecked(false);
                 if(mfSelectedRB!=null)
                 {
                 mfSelectedRB.setChecked(false);
                 }
             }                           
             mlSelectedPosition = position;              
             mlSelectedRB = (RadioButton)v;             
             RadioButton rb = (RadioButton) v ;                  
             cOptions optSelected = (cOptions) rb.getTag();  
             Toast.makeText(getApplicationContext(),
             "Clicked on RadioButton: " + rb.getText() +" is " + rb.isChecked(),Toast.LENGTH_LONG).show();
             optSelected.setSeleted(rb.isChecked());
             holderf.ForeignName.setChecked(rb.isChecked());
             holderf.LocalName.setChecked(rb.isChecked());
         }  
        }); 

       } 
  else 
  {
        holderf = (ViewHolder) convertView.getTag();
       }
       cOptions optfSelected = fOptions.get(position);
       cOptions optlSelected =  lOptions.get(position);
       if(mlSelectedPosition!=position)
       {
           holderf.ForeignCode.setText(" (" +  optfSelected.getsOptionsText() + ")");               
           holderf.ForeignName.setText(optfSelected.getsOptionsText());                        
           holderf.ForeignName.setChecked(optfSelected.getSeleted());                          
           holderf.ForeignName.setTag(optfSelected);               

           holderf.LocalCode.setText("("+optlSelected.getsOptionsText()+")");
           holderf.LocalName.setText(optlSelected.getsOptionsText());                          
           holderf.LocalName.setChecked(optlSelected.getSeleted());                        
           holderf.LocalName.setTag(optlSelected);             
       }
       else
       {
           holderf.ForeignCode.setText(" (" +  optfSelected.getsOptionsText() + ")");                                                      
           holderf.ForeignName.setText(optfSelected.getsOptionsText());           
           holderf.ForeignName.setChecked(optfSelected.getSeleted());
           holderf.ForeignName.setTag(optfSelected);

           holderf.LocalCode.setText("("+optlSelected.getsOptionsText()+")");
           holderf.LocalName.setText(optlSelected.getsOptionsText());                          
           holderf.LocalName.setChecked(optlSelected.getSeleted());                        
           holderf.LocalName.setTag(optlSelected);          

       }

    return convertView;
    }
 }

}

Answer 1

您的代码中没有复选框。我觉得应该改成Radio button。我不明白你为什么要选中两个单选按钮。无论如何，如果你分别设置这些，(不在RadioGroup中)，那么你可以一次检查两个。

一个建议:将onClick侦听器写在if-else块之外