spinner下拉框组件

方法一代码如下：

<string-array name="city_name">

        <item>浙江</item>

        <item>上海</item>

        <item>北京</item>

    </string-array>

 

<Spinner 

        android:id="@+id/citySelect"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:entries="@array/city_name"

        />

entries="@array/city_name"指定数组资源

方法二适配器设置：

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        mCitySelect = (Spinner) findViewById(R.id.citySelect);

    

        mCitySelect2 = (Spinner) findViewById(R.id.citySelect2);

        String arr[] = {"孙悟空", "猪八戒", "唐曾"};

        adapter = new ArrayAdapter<String>(this, android.R.layout.simple_gallery_item, arr);

        //为适配器设置下拉样式

        adapter.setDropDownViewResource(android.R.layout.simple_selectable_list_item);

        mCitySelect2.setAdapter(adapter);

        

        mCitySelect2.setOnItemSelectedListener(this);

    }



    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }



    @Override

    public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,

            long arg3) {

        mTxtShow = (TextView) findViewById(R.id.txtShow);

        mTxtShow.setText("您选择的是："+adapter.getItem(arg2));

    }