3

在父单击的展开列表中，我有一个孩子，其中有 3 个文本视图，例如，当我单击不同的文本视图时，我想触发不同的事件。

for text view 1 output is hello
for text view 2 output is hi
for text view 3 output is heya
4

7 回答 7

2

正如edwin所说，您可以制作一个服装适配器。您可以在其中对每个视图设置 OnClickListner() 方法。就像我在这里做的一样..

   class CustomAdapter extends ArrayAdapter<Contact>
  {
     LayoutInflater inflater=(LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    public CustomAdapter(Context context, int textViewResourceId,
     ArrayList<Contact> strings) {

      //let android do the initializing :)
  super(context, textViewResourceId, strings);
  }


        //class for caching the views in a row  
   private class ViewHolder
   {

    TextView id,name,phn_no;

   }

   ViewHolder viewHolder;

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

    if(convertView==null)
    {        
                                 //inflate the custom layout                        
     convertView=inflater.inflate(R.layout.activity_main, null);
     viewHolder=new ViewHolder();

     //cache the views
     viewHolder.id=(TextView) convertView.findViewById(R.id.contact_id_txt);
     viewHolder.name=(TextView) convertView.findViewById(R.id.contact_name_txt);
     viewHolder.phn_no=(TextView) convertView.findViewById(R.id.contact_ph_no_txt);
     viewHolder.id.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            Toast.makeText(getApplicationContext(), "Hi!!", Toast.LENGTH_SHORT).show();

        }
    }); 
     viewHolder.name.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Toast.makeText(getApplicationContext(), "Hello!!", Toast.LENGTH_SHORT).show();

        }
    });
     viewHolder.phn_no.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Toast.makeText(getApplicationContext(), "Heya!!!", Toast.LENGTH_SHORT).show();      
        }
    });

     //link the cached views to the convertview
     convertView.setTag(viewHolder);

    }
    else
     viewHolder=(ViewHolder) convertView.getTag();
       //set the data to be displayed
       viewHolder.id.setText(contacts.get(position).get_id()+"");
    viewHolder.name.setText(contacts.get(position).get_name());
    viewHolder.phn_no.setText(contacts.get(position).get_phn_no());

    //return the view to be displayed
   return convertView;
   }

  }
于 2013-01-25T12:52:37.803 回答
2 
ExpandableListView expandableListView; 
expandableListView.setOnChildClickListener(new OnChildClickListener() {

            @Override
            public boolean onChildClick(ExpandableListView parent, View v,
                    int groupPosition, int childPosition, long id) {
                // TODO Auto-generated method stub

//////////////////////////Change your child text values here.


                return false;

            }
        });
于 2013-01-25T12:41:34.207 回答
1

试试这种方式：

public View getChildView(int groupPosition, int childPosition, boolean isLastChild,View convertView, ViewGroup parent) 
{
    if (convertView == null) 
    {
        LayoutInflater infalInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.layout, null);
    }       
    tv_ChildFieldId = (TextView) convertView.findViewById(R.id.tv1);
    tv_ChildFieldId.setText(getChildIdFromDB(groupPosition, childPosition).toString());
tv_ChildFieldId.setOnClickListener(new ID_OnClickListener());
    //And so on   
    return convertView;
}
/**Onclick Listener for the Textview*/
private class ID_OnClickListener implements OnClickListener
{
    @Override
    public void onClick(View v) 
    {
    }
});
于 2013-01-25T12:48:28.697 回答
0

因此，您必须为可扩展列表创建自定义适配器。然后onClickListener在自定义适配器类中为您的不同小部件接口实现

在您的自定义适配器类中

 @Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild,
        View convertView, ViewGroup parent) {

    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.child_layout, null);
    }
   //Give your On click Implementations Here
    return convertView;
}

经历这个和这个

实施您的活动OnChildClickListener

@Override
public boolean onChildClick(ExpandableListView parent, View v,
   int groupPosition, int childPosition, long id) {
     Toast.makeText(MainActivity.this, "Clicked On Child",
     Toast.LENGTH_SHORT).show();
      return true; //or false
 }
于 2013-01-25T12:40:33.733 回答
0

看看这里 您可以定义您的自定义可扩展适配器

public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent)

在此方法中，您可以确定相对于父级的子级位置并设置所需的 oc click listener

于 2013-01-25T12:45:24.833 回答
0

试试这个它会有所帮助

    expListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
        @Override
        public boolean onChildClick(ExpandableListView parent, View v, int     groupPosition, int childPosition, long id) {
   if (groupPosition == 0){
       if (childPosition == 0){
           Intent intent = new Intent(MarketJaipur.this, ClothesMarket.class);
           startActivity(intent);
       }
   }
        return false;
    }
});
于 2016-01-06T10:54:09.393 回答
0

上面@edwin 的方法失败了！在活动中实现ExpandableListView.onchildItemClick不会发出任何调用。

如果您有自定义且复杂的 ChildView，则该问题会特别出现。

对我来说，它通过在convertView本身上设置一个 onclickListener来工作。我从适配器内部获得了完美的点击。

convertView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(_context, groupPosition + " clicked "
                    + childPosition, Toast.LENGTH_SHORT).show();
        }
    });

确保你把它写在外面

if(convertView==null){.....layout inflation}

插入语。

于 2015-08-03T15:14:39.700 回答