Spinner使用一

一、使用方法

1、在layout中创建Spinner控件

<Spinner

android:id="@+id/spinner1"

android:layout_width="match_parent"

android:layout_height="wrap_content"

/>

2、给数据适配器添加数据源和显示格式

String[] city=new String[]{"北京","上海","香港","澳门"};

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

3、给Spinner控件添加数据适配器

spinner1.setAdapter(adapter);

 

二、效果图及代码

fry.Activity01

package fry;import com.example.SpinnerDemo.R;import android.app.Activity;import android.os.Bundle;import android.widget.ArrayAdapter;import android.widget.Spinner;public class Activity01 extends Activity{    private Spinner spinner1;    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.activity01);                spinner1=(Spinner) findViewById(R.id.spinner1);                initSpinner1();    }    public void initSpinner1(){        String[] city=new String[]{"北京","上海","香港","澳门"};        ArrayAdapter
     
       adapter=new ArrayAdapter
      
       (this, android.R.layout.simple_spinner_dropdown_item, city);        spinner1.setAdapter(adapter);    }}
      
     

/SpinnerDemo/res/layout/activity01.xml

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       6  7     
      12 13 
     

 

 

三、注意点

1、android.R.layout.simple_spinner_dropdown_item

2、String[] city=new String[]{"北京","上海","香港","澳门"};  字符串使用