Android中Spinner的使用

<Spinner 
	    android:id="@+id/myspinner"
	    android:layout_width="fill_parent"
	    android:layout_height="wrap_content"
	    />

<string-array 
        name="tongxue"
        
        >
        <item>侯</item>
        <item>张</item>
        <item>赵</item>
        <item>李</item>
        <item>李</item>
        <item>刘</item>
    </string-array>

public class MainActivity extends Activity {
	private Spinner spin;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        spin=(Spinner)findViewById(R.id.myspinner);
        ArrayAdapter<CharSequence> adapter=ArrayAdapter.createFromResource(this, R.array.tongxue, android.R.layout.simple_spinner_item);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spin.setAdapter(adapter);
        spin.setPrompt("test");
        spin.setOnItemSelectedListener(new SpinnerLis());
        
    }

    //定义一个监听器
    class SpinnerLis implements OnItemSelectedListener{

		@Override
		public void onItemSelected(AdapterView<?> parent, View view,
				int position, long id) {
			String selected=parent.getItemAtPosition(position).toString();
			Toast.makeText(getApplicationContext(), selected, Toast.LENGTH_LONG).show();
			
		}

		@Override
		public void onNothingSelected(AdapterView<?> parent) {
			
		}
    	
    }