1. View
1 <Relativelayoutxmlns:android= "Http://schemas.android.com/apk/res/android"2 Xmlns:tools= "Http://schemas.android.com/tools"3 Android:layout_width= "Match_parent"4 Android:layout_height= "Match_parent"5 Tools:context=". Mainactivity " >6 7 <Spinner8 Android:id= "@+id/spinner"9 Android:layout_width= "Wrap_content"Ten Android:layout_height= "Wrap_content" One /> A - </Relativelayout>
2. Java code
1 PackageCom.example.myspinner;2 3 ImportAndroid.os.Bundle;4 Importandroid.app.Activity;5 ImportAndroid.view.Menu;6 ImportAndroid.widget.ArrayAdapter;7 ImportAndroid.widget.Spinner;8 9 Public classMainactivityextendsActivity {Ten One @Override A protected voidonCreate (Bundle savedinstancestate) { - Super. OnCreate (savedinstancestate); - Setcontentview (r.layout.activity_main); the -Spinner Spinner =(Spinner) Findviewbyid (r.id.spinner); -arrayadapter<string> adapter =NewArrayadapter ( This, Android. R.layout.simple_spinner_item); - Adapter.setdropdownviewresource (Android. R.layout.simple_spinner_dropdown_item); +Adapter.add ("Java"); -Adapter.add ("PHP"); +Adapter.add ("Ruby"); A Spinner.setadapter (adapter); at } - -}
drop-down list