BaseExpandableListAdapter-优快云博客

BaseExpandableListAdapter
extendsObject
implementsExpandableListAdapter

KnownDirectSubclasses
CursorTreeAdapter,SimpleExpandableListAdapter

KnownIndirectSubclasses
ResourceCursorTreeAdapter,SimpleCursorTreeAdapter
实例1：
importjava.util.ArrayList;

importandroid.app.ExpandableListActivity;
importandroid.content.Context;
importandroid.graphics.drawable.Drawable;
importandroid.os.Bundle;
importandroid.os.CountDownTimer;
importandroid.view.LayoutInflater;
importandroid.view.View;
importandroid.view.ViewGroup;
importandroid.widget.BaseExpandableListAdapter;
importandroid.widget.ExpandableListAdapter;
importandroid.widget.ExpandableListView;
importandroid.widget.ImageView;
importandroid.widget.LinearLayout;
importandroid.widget.ProgressBar;
importandroid.widget.TextView;
importandroid.widget.ExpandableListView.OnGroupClickListener;

importcom.sec.android.touchwiz.samples.R;

publicclassListLayoutSample12XmlextendsExpandableListActivity{

//Sampledataset.
privateStringmMailboxList[]={
"Inbox","Sentbox","Draft",
"Outbox","Emailinbox","Conversation",
"Trash","Myfolders"
};

privateStringmLoading="Loadingmessage...";

privateStringmSender[][]={{"Andrew1","Andrew2","Andrew3","Andrew4","Andrew5","Andrew6"},
{"Jeff1","Jeff2","Jeff3","Jeff4","Jeff5","Jeff6","Jeff7"},
{"ED1","ED2","ED3","ED4","ED5"},
{"Rachel1","Rachel2","Rachel3","Rachel4"},
{"Sean1","Sean2","Sean3","Sean4","Sean5"},
{"Karen1","Karen2","Karen3","Karen4","Karen5","Karen6","Karen7"},
{"Lisa1","Lisa2","Lisa3","Lisa4","Lisa5"},
{"Rain1","Rain2","Rain3","Rain4","Rain5"}};

privateStringmMailContext[][]={{"I'mgoingtogotowatchmovie!!!!!!!!!!!!!!!!!!!!!!!!!!","Hello....","Nicetomeetyou","Callmeplz..","?????","Callmeplz.."},
{"?????","Callmeplz..","?????","I'mgoingtogotowatchmovie!!!!!!!!!!!!!!!!!!!!!!!!!!","Hello....","Nicetomeetyou","Callmeplz.."},
{"?????","Callmeplz..","?????","Callmeplz..","?????"},
{"I'mgoingtogotowatchmovie!!!!!!!!!!!!!!!!!!!!!!!!!!","Hello....","Nicetomeetyou","Callmeplz.."},
{"?????","Callmeplz..","?????","Callmeplz..","?????"},
{"12312412","12414124","12412421","458645754","dfgsdgsdf","sdfgdfgh","sdfgdsfgh"},
{"vclkj","lkvoajh","alskdjfoivj","jvlkjasldkf","79837214"},
{"975432","kbvhuoisj","4362435,","342532","236dgasdt"}};

privateStringmDate[][]={{"11/22/09","11/23/08","09/11/07","02/03/05","00/09/09","11/11/11"},
{"12/12/12","12/25/09","01/03/09","11/22/09","11/23/08","09/11/07","02/03/05"},
{"00/09/09","11/11/11","12/12/12","12/25/09","01/03/09"},
{"11/22/09","11/23/08","09/11/07","02/03/05"},
{"00/09/09","11/11/11","12/12/12","12/25/09","01/03/09"},
{"12/12/12","12/25/09","01/03/09","11/22/09","11/23/08","09/11/07","02/03/05"},
{"00/09/09","11/11/11","12/12/12","12/25/09","01/03/09"},
{"00/09/09","11/11/11","12/12/12","12/25/09","01/03/09"}};

//childcount???loading...????group?child1??????????
//initvalueofchilddatacount,groupdatahave"Loadingmessag..."childdata,sotheinitvalueis1
privateintmChildCount[]={1,1,1,1,1,1,1,1};

ExpandableListViewmExpandableList;
ExpandableListAdaptermAdapter;

protectedArrayList<GroupItem>mGroupdata=newArrayList<GroupItem>();

@Override
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);

mExpandableList=getExpandableListView();

//initializingExpandedmailboxlistdata
for(inti=0;i<mMailboxList.length;i++){
GroupItemitem=newGroupItem(i,mMailboxList ); mGroupdata.add(item); ChildItemitems=newChildItem(mLoading,null,null); item.mChilddata.add(items); } //Setupouradapter mAdapter=newExpandedMailboxListAdapter(); setListAdapter(mAdapter); mExpandableList.setGroupIndicator(null);//Groupindicatordisable mExpandableList.setOnGroupClickListener(newOnGroupClickListener(){ publicbooleanonGroupClick(ExpandableListViewmExpandableList,Viewarg1, finalintgroupPosition,longid){ newCountDownTimer(3000,50){ publicvoidonTick(longmillisUntilFinished){ } publicvoidonFinish(){ expandableListChange(groupPosition); } }.start(); returnfalse; } }); } /** *Expandablelist?childdata?set??childdata?set???method *SetChildlistdataofExpandablelist *Removefirstlistitemandreadditem *@paramgroupPosition */ privatevoidexpandableListChange(intgroupPosition){ mGroupdata.get(groupPosition).mChilddata.remove(0); for(inti=0;i<mSender[groupPosition].length;i++){ ChildItemitems=newChildItem(mSender[groupPosition],mMailContext[groupPosition],mDate[groupPosition]); mGroupdata.get(groupPosition).mChilddata.add(i,items); mChildCount[groupPosition]=mSender[groupPosition].length; } ((BaseExpandableListAdapter)mAdapter).notifyDataSetChanged(); } /** *BaseExpandableListAdpater????expandablelistadpater?? *DefineExpandableMailboxListAdpaterbyinheritBaseExpandableListAdpater */ publicclassExpandedMailboxListAdapterextendsBaseExpandableListAdapter{ privateTextViewmMailbox; privateImageViewmMailboxIcon; privateTextViewmMailSender; privateTextViewmContext; privateTextViewmSubDate; privateProgressBarmProgress; LinearLayoutmTodoView=null; /* *(non-Javadoc) *@seeandroid.widget.ExpandableListAdapter#getChild(int,int) */ publicObjectgetChild(intarg0,intarg1){ returnnull; } publiclonggetChildId(intgroupPosition,intchildPosition){ returnchildPosition; } publicintgetChildrenCount(intgroupPosition){ returnmChildCount[groupPosition]; } /** *Getchildviewandsetchilddata. *convertViewisreusedview */ publicViewgetChildView(intgroupPosition,intchildPosition,booleanisLastChild,ViewconvertView,ViewGroupparent){ //inti=0; if(convertView==null){ LayoutInflatervi=null; vi=(LayoutInflater)getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); mTodoView=(LinearLayout)vi.inflate(R.layout.listlayoutsample12xml_child,parent,false); } else{ mTodoView=(LinearLayout)convertView; } mProgress=(ProgressBar)mTodoView.findViewById(R.id.child_progressbar); mMailSender=(TextView)mTodoView.findViewById(R.id.child_text1); mContext=(TextView)mTodoView.findViewById(R.id.child_text2); mSubDate=(TextView)mTodoView.findViewById(R.id.child_text3); /** *Visibility???Gone??set??????Visible?set??????Convetview??????? *Gone????????????view??????.???GONE???????Visible??????? * *IfusersetVisibilitytoGoneinspecificcase,userhavetosetVisibleinothercase. *BecauseConvertviewisreusedwithprefervisibilityattribute. */ if(mGroupdata.get(groupPosition).mChilddata.get(childPosition).getSender()==mLoading){ mProgress.setVisibility(View.VISIBLE); mProgress.setIndeterminate(true); mMailSender.setText(mGroupdata.get(groupPosition).mChilddata.get(childPosition).getSender()); }else{ mProgress.setVisibility(View.GONE); mMailSender.setText(mGroupdata.get(groupPosition).mChilddata.get(childPosition).getSender()); } if(mGroupdata.get(groupPosition).mChilddata.get(childPosition).getContext()==null){ mContext.setVisibility(View.GONE); }else{ mContext.setVisibility(View.VISIBLE); mContext.setText(mGroupdata.get(groupPosition).mChilddata.get(childPosition).getContext()); } if(mGroupdata.get(groupPosition).mChilddata.get(childPosition).getDate()==null){ mSubDate.setVisibility(View.GONE); }else{ mSubDate.setVisibility(View.VISIBLE); mSubDate.setText(mGroupdata.get(groupPosition).mChilddata.get(childPosition).getDate()); } returnmTodoView; } /* *(non-Javadoc) *@seeandroid.widget.ExpandableListAdapter#getGroup(int) */ publicObjectgetGroup(intgroupPosition){ returnnull; } publicintgetGroupCount(){ returnmMailboxList.length; } publiclonggetGroupId(intgroupPosition){ returngroupPosition; } /** *GetGroupviewandsetgroupdata. *convertViewisreusedview */ publicViewgetGroupView(intgroupPosition,booleanisExpanded,ViewconvertView,ViewGroupparent){ if(convertView==null){ LayoutInflatervi=null; vi=(LayoutInflater)getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); mTodoView=(LinearLayout)vi.inflate(R.layout.listlayoutsample12xml_group,parent,false); } else{ mTodoView=(LinearLayout)convertView; } mMailboxIcon=(ImageView)mTodoView.findViewById(R.id.image1); mMailbox=(TextView)mTodoView.findViewById(R.id.text1); mMailboxIcon.setImageDrawable(mGroupdata.get(groupPosition).getImage()); mMailbox.setText(mGroupdata.get(groupPosition).getMailbox()); returnmTodoView; } //IndicateswhetherthechildandgroupIDsarestable publicbooleanhasStableIds(){ returntrue; } //Whetherthechildatthespecifiedpositionisselectable. publicbooleanisChildSelectable(intgroupPosition,intchildPosition){ returntrue; } } /** *GroupItemclass *initGroupitemdatainlistlayoutsample12sml_group.xml *Groupitemhasownchilditem'sreference */ privateclassGroupItem{ privateStringmMailbox; privateDrawablemMailboxIcon; privateArrayList<ChildItem>mChilddata=newArrayList<ChildItem>(); publicGroupItem(inti,StringMailbox){ mMailbox=Mailbox; switch(i%4){ case0: mMailboxIcon=getResources().getDrawable(R.drawable.listlayoutsample12xml_image1); break; case1: mMailboxIcon=getResources().getDrawable(R.drawable.listlayoutsample12xml_image2); break; case2: mMailboxIcon=getResources().getDrawable(R.drawable.listlayoutsample12xml_image3); break; case3: mMailboxIcon=getResources().getDrawable(R.drawable.listlayoutsample12xml_image4); break; } } publicStringgetMailbox(){ returnmMailbox; } publicDrawablegetImage(){ returnmMailboxIcon; } } /** *ChildItemclass *initchilditemdatainlistlayoutsample12sml_child.xml */ privateclassChildItem{ privateStringmSender; privateStringmContext; privateStringmDate; publicChildItem(StringSender,StringContext,StringDate){ mSender=Sender; mContext=Context; mDate=Date; } publicStringgetSender(){ returnmSender; } publicStringgetContext(){ returnmContext; } publicStringgetDate(){ returnmDate; } } }