Android ListView列表分组开发
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ListGroupExpandableListView.zip
package cn.zhoulujun; import android.app.ExpandableListActivity; import android.os.Bundle; import android.view.View; import android.view.Window; import android.widget.ExpandableListAdapter; import android.widget.ExpandableListView; import android.widget.Toast; import java.util.ArrayList; import java.util.List; public class ListGroupExpandableListView extends ExpandableListActivity { private String[] group=new String[]{"同学","同事","家人"}; private String[][] groupDetail=new String[][]{ {"罗志彪","刘宋","刘定飞","刘丹"}, {"潘光浩","梁建坤","张晓峰","张无忌"}, {"周静","李世婕","李世民","李元芳"} }; ExpandableListView expandableListView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.list_view); expandableListView=(ExpandableListView)findViewById(R.id.expandListView); ExpandableListAdapter adapter=new ListAdpater(this,group,groupDetail); expandableListView.setAdapter(adapter); expandableListView.setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() { @Override public void onGroupExpand(int groupPosition) { } }); expandableListView.setOnGroupCollapseListener(new ExpandableListView.OnGroupCollapseListener() { @Override public void onGroupCollapse(int groupPosition) { } }); expandableListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() { @Override public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { Toast.makeText(ListGroupExpandableListView.this,group[groupPosition]+":"+groupDetail[groupPosition][childPosition],Toast.LENGTH_SHORT).show(); return false; } }); } }
package cn.zhoulujun; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseExpandableListAdapter; import android.widget.ExpandableListAdapter; import android.widget.ImageView; import android.widget.TextView; /** * Created by lujun on 2015-07-21. */ public class ListAdpater extends BaseExpandableListAdapter { private String[] groupName; private String[][] groupDetail; private Context context; LayoutInflater inflater; public ListAdpater(Context context, String[] groupName, String[][] groupDetail) { this.groupName = groupName; this.groupDetail = groupDetail; this.context = context; inflater=LayoutInflater.from(context); } @Override public int getGroupCount() { return groupName.length; } @Override public int getChildrenCount(int groupPosition) { return groupDetail[groupPosition].length; } @Override public Object getGroup(int groupPosition) { return groupDetail[groupPosition]; } @Override public Object getChild(int groupPosition, int childPosition) { return groupDetail[groupPosition][childPosition]; } @Override public long getGroupId(int groupPosition) { return groupPosition; } @Override public long getChildId(int groupPosition, int childPosition) { return childPosition; } @Override public boolean hasStableIds() { return true; } @Override public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { convertView=inflater.inflate(R.layout.list_group_item,null); TextView groupItemName=(TextView)convertView.findViewById(R.id.listGroupName); groupItemName.setText(getGroup(groupPosition).toString()); TextView groupNum=(TextView)convertView.findViewById(R.id.listGroupNum); groupNum.setText(getChildrenCount(groupPosition)); ImageView imageView=(ImageView)convertView.findViewById(R.id.listGroupImage); imageView.setImageResource(R.drawable.arrow_down); if(!isExpanded){ imageView.setImageResource(R.drawable.arrow_up); } return convertView; } @Override public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { convertView=inflater.inflate(R.layout.list_child_item,null); TextView nickTextView=(TextView)convertView.findViewById(R.id.listViewNick); nickTextView.setText(getChild(groupPosition,childPosition).toString()); return convertView; } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return true; } }
xml version="1.0" encoding="utf-8"?> xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:id="@+id/ListGroupItem" android:layout_width="match_parent" android:layout_height="match_parent"> android:id="@+id/listGroupImage" android:layout_width="30dp" android:layout_height="40dp" android:layout_alignParentLeft="true" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:src="@drawable/arrow_up" android:backgroundTintMode="src_in"/> android:id="@+id/listGroupName" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_alignBaseline="@id/listGroupImage" android:layout_toRightOf="@+id/listGroupImage" android:textSize="24sp" android:text="分组名称"/> android:id="@+id/listGroupNum" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_alignBottom="@id/listGroupImage" android:layout_centerVertical="true" android:layout_marginRight="10dp" android:text="[10/10]"/>
xml version="1.0" encoding="utf-8"?> xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="40dp"> android:id="@+id/listChildAvatar" android:layout_width="40dp" android:layout_height="40dp" android:layout_marginLeft="10dp" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" android:src="@drawable/avatar" /> android:id="@+id/listViewNick" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_toRightOf="@+id/listChildAvatar" android:layout_marginLeft="10dp" android:text="昵称" android:textSize="16sp"/> android:id="@+id/listViewTrends" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/listViewNick" android:layout_alignParentBottom="true" android:text="该好友没有最新动态" android:textSize="12sp"/>
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