android的ExpandableListView
activity_main.xml
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<RelativeLayout xmlns:android=
"http://schemas.android.com/apk/res/android"
xmlns:tools=
"http://schemas.android.com/tools"
android:layout_width=
"match_parent"
android:layout_height=
"match_parent"
android:paddingBottom=
"@dimen/activity_vertical_margin"
android:paddingLeft=
"@dimen/activity_horizontal_margin"
android:paddingRight=
"@dimen/activity_horizontal_margin"
android:paddingTop=
"@dimen/activity_vertical_margin"
tools:context=
"com.example.expandablelistview.MainActivity"
>
<ExpandableListView
android:id=
"@+id/ExpandableListView1_1"
android:layout_width=
"match_parent"
android:layout_height=
"wrap_content"
android:layout_alignParentLeft=
"true"
android:layout_alignParentTop=
"true"
android:groupIndicator=
"@null"
>
</ExpandableListView>
</RelativeLayout>
<!-- android:groupIndicator=
"@null"
去掉自带的箭头图标 -->
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group_item.xml
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<?xml version=
"1.0"
encoding=
"utf-8"
?>
<LinearLayout xmlns:android=
"http://schemas.android.com/apk/res/android"
android:layout_width=
"match_parent"
android:layout_height=
"wrap_content"
android:orientation=
"horizontal"
>
<ImageView
android:id=
"@+id/imageViewgroup_1"
android:layout_width=
"wrap_content"
android:layout_height=
"wrap_content"
android:src=
"@drawable/ic_launcher"
/>
<TextView
android:id=
"@+id/textViewgroup_1"
android:layout_width=
"wrap_content"
android:layout_height=
"wrap_content"
/>
</LinearLayout>
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child_item.xml
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<?xml version=
"1.0"
encoding=
"utf-8"
?>
<LinearLayout xmlns:android=
"http://schemas.android.com/apk/res/android"
android:layout_width=
"match_parent"
android:layout_height=
"wrap_content"
android:orientation=
"horizontal"
>
<ImageView
android:id=
"@+id/imageViewchild_1"
android:layout_width=
"wrap_content"
android:layout_height=
"wrap_content"
android:src=
"@drawable/ic_launcher"
android:padding=
"10dp"
/>
<TextView
android:id=
"@+id/textViewchild_1"
android:layout_width=
"wrap_content"
android:layout_height=
"wrap_content"
android:text=
"sdfds"
android:padding=
"10dp"
/>
</LinearLayout>
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MainActivity
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package
com.example.expandablelistview;
import
android.app.Activity;
import
android.os.Bundle;
import
android.view.Menu;
import
android.view.MenuItem;
import
android.view.View;
import
android.view.ViewGroup;
import
android.widget.BaseExpandableListAdapter;
import
android.widget.ExpandableListView;
import
android.widget.ImageView;
import
android.widget.TextView;
public
class
MainActivity
extends
Activity {
private
ExpandableListView expandableListView;
@Override
protected
void
onCreate(Bundle savedInstanceState) {
super
.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
expandableListView=(ExpandableListView) findViewById(R.id.ExpandableListView1_1);
expandableListView.setAdapter(
new
MyExpandableListAdapter());
}
@Override
public
boolean
onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return
true
;
}
@Override
public
boolean
onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int
id = item.getItemId();
if
(id == R.id.action_settings) {
return
true
;
}
return
super
.onOptionsItemSelected(item);
}
class
MyExpandableListAdapter
extends
BaseExpandableListAdapter{
private
String[] skills =
new
String[]{
"WORD"
,
"EXCEL"
,
"EMAIL"
,
"PPT"
};
private
String[][] groups =
new
String[][]{
{
"文档编辑"
,
"文档排版"
,
"文档处理"
,
"文档打印"
},
{
"表格编辑"
,
"表格排版"
,
"表格处理"
,
"表格打印"
},
{
"收发邮件"
,
"管理邮箱"
,
"登录登出"
,
"注册绑定"
},
{
"演示编辑"
,
"演示排版"
,
"演示处理"
,
"演示打印"
},
};
@Override
public
int
getGroupCount() {
// TODO Auto-generated method stub
return
skills.length;
}
//二级列表的数量
@Override
public
int
getChildrenCount(
int
groupPosition) {
// TODO Auto-generated method stub
return
groups[groupPosition].length;
}
//返回每一组的对象
@Override
public
Object getGroup(
int
groupPosition) {
// TODO Auto-generated method stub
return
skills[groupPosition];
}
//返回每组中的列表项
@Override
public
Object getChild(
int
groupPosition,
int
childPosition) {
// TODO Auto-generated method stub
return
groups[groupPosition][childPosition];
}
@Override
public
long
getGroupId(
int
groupPosition) {
// TODO Auto-generated method stub
return
groupPosition;
}
@Override
public
long
getChildId(
int
groupPosition,
int
childPosition) {
// TODO Auto-generated method stub
return
childPosition;
}
@Override
public
boolean
hasStableIds() {
// TODO Auto-generated method stub
return
true
;
}
@Override
public
View getGroupView(
int
groupPosition,
boolean
isExpanded,
View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
if
(convertView==
null
){
convertView=getLayoutInflater().inflate(R.layout.group_item,
null
);
}
ImageView imageView=(ImageView) convertView.findViewById(R.id.imageViewgroup_1);
TextView textView=(TextView) convertView.findViewById(R.id.textViewgroup_1);
imageView.setImageResource(R.drawable.ic_launcher);
textView.setText(skills[groupPosition]);
return
convertView;
}
@Override
public
View getChildView(
int
groupPosition,
int
childPosition,
boolean
isLastChild, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
if
(convertView==
null
){
convertView=getLayoutInflater().inflate(R.layout.child_item,
null
);
ImageView imageView=(ImageView) convertView.findViewById(R.id.imageViewchild_1);
TextView textView=(TextView) convertView.findViewById(R.id.textViewchild_1);
imageView.setImageResource(R.drawable.ic_launcher);
textView.setText(groups[groupPosition][childPosition]);
}
return
convertView;
}
@Override
public
boolean
isChildSelectable(
int
groupPosition,
int
childPosition) {
// TODO Auto-generated method stub
return
true
;
}
}
}
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本文转自 matengbing 51CTO博客，原文链接:http://blog.51cto.com/matengbing/1882709
