The ListView in Android----Custom Radio list with RadioButton

Sometimes we need to make a custom radio list, but will encounter some problems, such as multi-choice, false selection problem, so look for information on the Internet, organize a demo out, paste the code:

<listview        android:id= "@+id/listview1"        android:layout_width= "match_parent"        android:layout_height = "Wrap_content"        android:layout_centerhorizontal= "true"        android:layout_centervertical= "true" >    </ListView>

The contents of each row in the list

<?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=" match_parent "android:orientation=" vertical "        > <relativelayout android:id= "@+id/outpatient_check_hospital" android:layout_width= "Fill_parent" android:layout_height= "Wrap_content" android:layout_marginbottom= "5.0dip" android:layout_marginleft= "12 .599976dip "android:layout_marginright=" 12.599976dip "android:layout_margintop=" 5.0dip "Android:gravi Ty= "center_vertical" android:background= "#AAAAAA" > <linearlayout android:id= "@+id/linear_l Ayout_up "android:layout_width=" fill_parent "android:layout_height=" Wrap_content "Android : layout_margin= "10.0dip" android:gravity= "center" android:orientation= "Horizontal" > & Lt;imageview Android: layout_width= "10dip" android:layout_height= "10dip" android:adjustviewbounds= "false"/>                <textview android:id= "@+id/tv_device_name" android:layout_width= "Wrap_content" android:layout_height= "Wrap_content" android:layout_weight= "2.0" Android:text = "Name" android:textcolor= "#ff323232" android:textsize= "16.0SP" Android:typefac E= "monospace"/> <radiobutton android:id= "@+id/rb_light" Android:layout_wid                Th= "Wrap_content" android:layout_height= "Wrap_content" android:focusable= "false" Android:text= ""/> </LinearLayout> </RelativeLayout></LinearLayout>

Use a list of pages

public class Mainactivity extends Activity {private ListView listview;private listviewadapter adapter;private string[] Be ans = new string[] {"1", "2", "3", "4", "5", "6", "7", "8", "9", "Ten", "one", "one", "one"}; @Overrideprotected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); Initview ();} private void Initview () {//TODO auto-generated method stublog.i ("HTP", "beans.size:" + beans.length); listview = (ListView ) Findviewbyid (r.id.listview1); adapter = new Listviewadapter (mainactivity.this, beans); Listview.setadapter (adapter) ; Listview.setchoicemode (listview.choice_mode_single);}

Adapter content, where to deal with single-selection issues

Package Com.example.listviewdemo;import Java.util.hashmap;import Java.util.list;import android.content.Context; Import Android.view.layoutinflater;import Android.view.view;import Android.view.viewgroup;import Android.widget.baseadapter;import Android.widget.imageview;import Android.widget.linearlayout;import Android.widget.radiobutton;import Android.widget.textview;public class Listviewadapter extends BaseAdapter {private Context context;private string[] beans;//is used to record the status of each RadioButton and to ensure that only one hashmap<string is selected, boolean> states = new Hashmap<string, boolean> (); class Viewholder {TextView tvname; RadioButton Rb_state;} Public Listviewadapter (context context, string[] beans) {//TODO auto-generated constructor Stubthis.beans = beans;this.c Ontext = context;} @Overridepublic int GetCount () {//TODO auto-generated method Stubreturn beans.length;} @Overridepublic Object getItem (int position) {//TODO auto-generated method Stubreturn beans[position];} @Overridepublic long getitemid (int positiON) {//TODO auto-generated method Stubreturn position;}  @Overridepublic View GetView (final int position, view Convertview, ViewGroup parent) {//TODO auto-generated method stub// Page Viewholder holder; String bean = beans[position]; Layoutinflater Inflater = layoutinflater.from (context), if (Convertview = = null) {Convertview = Inflater.inflate ( R.layout.assist_device_binding_list_item, null); holder = new Viewholder ();//holder.rb_state = (RadioButton) Convertview//.findviewbyid (r.id.rb_light); holder.tvname = (TextView) Convertview.findviewbyid (R.id.tv_device_name ); Convertview.settag (holder);} else {holder = (Viewholder) Convertview.gettag ();}      Holder.tvName.setText (Bean), Final RadioButton radio= (RadioButton) Convertview.findviewbyid (r.id.rb_light);  Holder.rb_state = Radio; Holder.rb_state.setOnClickListener (New View.onclicklistener () {public void OnClick (View v) {//reset ensures that only one item is selected for ( String Key:states.keySet ()) {States.put (key, false);} States.put (string.valueof (position), Radio.ischeckEd ()); ListViewAdapter.this.notifyDataSetChanged ();}}); Boolean res = False;if (States.get (string.valueof (position)) = = null| | States.get (string.valueof (position)) = = False) { res = False;states.put (string.valueof (position), false);} Elseres = true;holder.rb_state.setchecked (res); return convertview;}}

The ListView in Android----Custom Radio list with RadioButton