Android--ListView and adapter

The ListView has a very important role in Android. The ListView in Android Development is a more commonly used component that displays specific content as a list, and can be displayed adaptively based on the length of the data.

Background

Built a person class with name,number,id, three attributes.

Private String name;     Private String number;     Private int ID;

Used primarily to add information to the ListView.

Layout

<LinearLayoutxmlns: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"Tools:context=". Mainactivity "android:orientation= "vertical">    <ListViewAndroid:id= "@+id/lv"Android:layout_width= "Match_parent"Android:layout_height= "Match_parent"         /></LinearLayout>

Just put the ListView up and it's OK.

Program

Private ListView LV;
Private list<person> List;

@Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main); List=NewArraylist<person>(); LV=(ListView) Findviewbyid (r.id.lv);        Addperson (); Lv.setadapter (NewMyadapter ()); }    Private classMyadapterextendsBaseadapter {@Override Public intGetCount () {//return size            returnlist.size (); } @Override PublicObject GetItem (intposition) {            //TODO Auto-generated method stubs            return NULL; } @Override Public LongGetitemid (intposition) {            //TODO Auto-generated method stubs            return0; } @Override PublicView GetView (intposition, View Convertview, ViewGroup parent) {TextView TV=NewTextView (Getapplicationcontext ()); Tv.settextsize (50);            Tv.settextcolor (Color.Blue); Person Person=List.get (position);            Tv.settext (Person.tostring ()); System.out.println ("Return position" +position); returnTV}} //Adding data functions    Private voidAddperson () { for(inti = 0; I < 20; i++) {person Person1=NewPerson ("Zhang San" + I, "12345678912", i);        List.add (Person1); }    }

To declare a adapter,adapter inside the data, then the ListView configures the adapter through Setadapter.

----------------------------Simple Split-line------------------------------------Simple---------------------------

If you need to customize the style in the Lixtview, you can have the layout of the item layout.

Item layout

<?XML version= "1.0" encoding= "Utf-8"?><LinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "Match_parent"Android:layout_height= "60dip"android:orientation= "Horizontal" >    <TextViewAndroid:id= "@+id/tv_id"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_marginleft= "5dip"Android:text= "id"Android:textcolor= "#ff0000"android:textsize= "18SP" />    <LinearLayoutAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"android:gravity= "Center"android:orientation= "vertical" >                <TextViewAndroid:id= "@+id/tv_name"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_marginleft= "5dip"Android:text= "First Name"Android:textcolor= "#000000"android:textsize= "18SP"/>        <TextViewAndroid:id= "@+id/tv_phone"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_marginleft= "5dip"Android:text= "Phone"Android:textcolor= "#88000000"android:textsize= "16SP"/>    </LinearLayout></LinearLayout>

Re-write the GetView method inside the adapter:

GetView

@Override PublicView GetView (intposition, View Convertview, ViewGroup parent) { person person=List.get (position); View View= View.inflate (mainactivity. This, R.layout.listview_item,NULL); //Find IDTextView tv_id =(TextView) View.findviewbyid (r.id.tv_id); Tv_id.settext ("ID:" +Person.getid ()); TextView Tv_name=(TextView) View.findviewbyid (r.id.tv_name); Tv_name.settext ("Tv_name:" +person.getname ()); TextView Tv_phone=(TextView) View.findviewbyid (R.id.tv_phone); Tv_phone.settext ("Tv_phone:" +Person.getnumber ()); returnview; }

I'm the dividing line of the king of the Land Tiger.

Source code: HTTP://PAN.BAIDU.COM/S/1DD1QX01

ListView Learning. zip

Reprint Please specify source: Http://www.cnblogs.com/yydcdut