Spinner

资源的方式添加

安卓中的下拉框 Spinner可以通过xml string中配置

    <string-array name="spingarr">

        <item>支付宝</item>

        <item>微信</item>

    </string-array>

布局文件

        <Spinner

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:entries="@array/spingarr"

            android:id="@+id/payMode"

            android:layout_weight="1">

        </Spinner>

获取spinner选中的值

private Spinner payMode;
private int payNum;
private String strPay;

payMode = (Spinner)findViewById(R.id.payMode);

payMode.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
        strPay = (String)payMode.getSelectedItem();
    }

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

    }
});

代码的方式添加

        payMode = (Spinner) findViewById(R.id.payMode);

        //数据

        data_list = new ArrayList<String>();

        data_list.add("微信");

        data_list.add("支付宝");

//适配器

        arr_adapter= new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, data_list);

        //设置样式

        arr_adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        //加载适配器

        spinner.setAdapter(arr_adapter);