Android BaseAdapter应用实例
本文实例讲述了AndroidBaseAdapter的应用方法。分享给大家供大家参考，具体如下：
直接上源码
/**
*生成联系人Items，即Items中包含如下控件
*
*/
publicfinalclassViewHolder{
publicImageViewcallImg;//打电话的图标
publicImageViewheadImg;//头像
publicTextViewpeopleName;//联系人名
publicTextViewpeopleNumber;//联系人号码
}
publicclassMyAdapterextendsBaseAdapter{
privateLayoutInflatermInflater;
publicMyAdapter(Contextcontext){
this.mInflater=LayoutInflater.from(context);
}
publicintgetCount(){
returnlistPeople.size();
}
publicObjectgetItem(intarg0){
returnlistPeople.get(arg0);
}
publiclonggetItemId(intarg0){
returnarg0;//当初在看别人例子时，此处返回NUll，加载都没问题，但在ListView中的OnItemsClick事件中就报错了。
}
publicViewgetView(finalintposition,ViewconvertView,
ViewGroupparent){
ViewHolderholder=null;
if(convertView==null){
holder=newViewHolder();
convertView=mInflater.inflate(R.layout.peopleinfo,null);
holder.callImg=(ImageView)convertView
.findViewById(R.id.callbtn);
holder.headImg=(ImageView)convertView
.findViewById(R.id.contactImage);
holder.peopleName=(TextView)convertView
.findViewById(R.id.peopleName);
holder.peopleNumber=(TextView)convertView
.findViewById(R.id.peopleNumber);
convertView.setTag(holder);
}else{
holder=(ViewHolder)convertView.getTag();
}
finalStringname=(String)listPeople.get(position).get(
"peopleName");
finalStringnum=(String)listPeople.get(position).get(
"peopleNumber");
holder.peopleName.setText((String)listPeople.get(position).get(
"peopleName"));
holder.peopleNumber.setText((String)listPeople.get(position).get(
"peopleNumber"));
//holder.headImg.setImageResource(R.drawable.ic_menu_contact);
if(listPeople.get(position).get("peoplePhoto")!=null){
holder.headImg.setImageBitmap((Bitmap)listPeople.get(position).get(
"peoplePhoto"));
}
holder.callImg.setImageResource(R.drawable.ic_dial_action_call);
holder.callImg.setOnClickListener(newView.OnClickListener(){
publicvoidonClick(Viewv){
//处理Items中控件的触发事件
}
});
returnconvertView;
}
}
/*
*应用BaseAdapter
*
*/
finalMyAdaptermyAdapter=newMyAdapter(this);
contacts.setAdapter(myAdapter);
contacts.setOnItemClickListener(newOnItemClickListener(){
@SuppressWarnings("unchecked")
publicvoidonItemClick(AdapterView<?>arg0,Viewarg1,intarg2,
longarg3){
Map<String,Object>map=(Map<String,Object>)myAdapter.getItem(arg2);//此处需要注意，
StringpeopleNumber=String.valueOf(map.get("peopleNumber"));
}
});
希望本文所述对大家Android程序设计有所帮助。