[置顶] androidの下拉菜单Spinner使用

androidの下拉菜单Spinner使用

1.Spinner控件也是一种列表类型的控件，它的继承关系如下：

java.lang.Object

↳ android.view.View

↳ android.view.ViewGroup

↳ android.widget.AdapterView<Textends android.widget.Adapter>

↳ android.widget.AbsSpinner

↳ android.widget.Spinner
android.widget.Spinner继承了android.view.ViewGroup类。

2, 直接附代码,查看

public class SpinnerDemoActivity extends Activity {    private Spinner spinner=null;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        spinner=(Spinner)findViewById(R.id.spinnerid);        //第一种用法        ArrayAdapter<CharSequence> adapter=ArrayAdapter.createFromResource(this,              R.array.planets, android.R.layout.simple_spinner_item);        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);                      ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,           android.R.layout.simple_spinner_item,list);        spinner.setAdapter(adapter);        spinner.setPrompt("test");        spinner.setOnItemSelectedListener(new SpinnerSelectedListener());    }        class SpinnerSelectedListener implements OnItemSelectedListener{  @Override  public void onItemSelected(AdapterView<?> parent, View view,    int position, long id) {   String selected=parent.getItemAtPosition(position).toString();   System.out.println(selected);  }  @Override  public void onNothingSelected(AdapterView<?> parent) {   System.out.println("nothing");  }      }}

以上是通过xml 加载数据，一下可以通过动态加载数据的。
第二种动态添加数据

   //第二种用法        List<String> list=new ArrayList<String>();        list.add("monday");        list.add("tuesday");      ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,           android.R.layout.simple_spinner_item,list);        spinner.setAdapter(adapter);        spinner.setPrompt("test");        spinner.setOnItemSelectedListener(new SpinnerSelectedListener());

附带：http://imshare.iteye.com/blog/770950

http://www.cnblogs.com/salam/archive/2010/10/07/1844980.html

下载源码：spinner源码

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