ExpandableListAdapter

最新推荐文章于 2019-03-11 22:08:43 发布

qq_32214205

最新推荐文章于 2019-03-11 22:08:43 发布

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本文链接：https://blog.youkuaiyun.com/qq_32214205/article/details/50099849

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本文详细介绍了如何使用Java实现ExpandableAdapter，适用于显示包含子项的分组数据，具体实例为JavaBean1的应用。

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package com.example.expandablelist;

import java.util.List;

import com.example.model.JavaBean1;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;

public class MyexpandableAdapter extends BaseExpandableListAdapter {

private Context context;
private List<JavaBean1> list;

public MyexpandableAdapter(Context context, List<JavaBean1> list) {
super();
this.context = context;
this.list = list;
}

@Override
public Object getChild(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return list.get(groupPosition).list.get(childPosition);
}

@Override
public long getChildId(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return childPosition;
}

@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
TextView tv=new TextView(context);
tv.setText(list.get(groupPosition).list.get(childPosition).getName());
tv.setPadding(20, 10, 0, 10);
// TODO Auto-generated method stub
return tv;
}

@Override
public int getChildrenCount(int groupPosition) {
// TODO Auto-generated method stub
return list.get(groupPosition).list.size();
}

@Override
public Object getGroup(int groupPosition) {
// TODO Auto-generated method stub
return list.get(groupPosition);
}

@Override
public int getGroupCount() {
// TODO Auto-generated method stub
return list.size();
}

@Override
public long getGroupId(int groupPosition) {
// TODO Auto-generated method stub
return groupPosition;
}

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
TextView tv=new TextView(context);
tv.setText(list.get(groupPosition).getName());
tv.setPadding(0, 10, 0, 10);
return tv;
}

@Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return true;
}

@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return true;
}

}