Multiple choice listview in Android

Below is a simple yet valid tive solution of using checkbox in listviews.

XML file

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical" android:layout_width="fill_parent"android:layout_height="fill_parent"><TextView android:layout_width="fill_parent"android:layout_height="wrap_content" android:text="@string/hello" /><ListView android:id="@+id/list_view" android:layout_width="fill_parent"android:layout_height="wrap_content"></ListView><Button android:id="@+id/show_btn" android:layout_width="wrap_content"android:layout_height="wrap_content" android:text="Show Selected Items" /></LinearLayout>

Java source code

public class TryMultipleChoiceListViewActivity extends Activity {private ListView lv;private String[] s;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);lv=(ListView) findViewById(R.id.list_view);Button btn=(Button) findViewById(R.id.show_btn);s=new String[]{"China","USA","Canada","South Africa"};lv.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_multiple_choice,s));lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {SparseBooleanArray id=lv.getCheckedItemPositions();StringBuffer sb=new StringBuffer();for(int i=0;i<lv.getCount();i++){if(id.get(i)){sb.append(s[i]+" ");}}sb.append("are chosen!");Toast.makeText(TryAndroidProgressDialogActivity.this, sb.toString(), Toast.LENGTH_SHORT).show();}});}}

Hope this can help some people who are new to Android!