Android spinner下垃菜單用法實例詳解

更新時間：2016年07月13日 16:02:23 作者：dreamzml

這篇文章主要介紹了Android spinner下垃菜單用法,詳細分析了spinner下垃菜單的定義、布局及功能實現(xiàn)相關技巧,需要的朋友可以參考下

本文實例講述了Android spinner下垃菜單用法。分享給大家供大家參考，具體如下：

一、使用數(shù)組作為數(shù)據(jù)源

1. 在layout布局文件：聲明一個TextView控件和一個Spinner控件，代碼如下

<Spinner android:id="@+id/Spinner01"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"></Spinner>

2. 在Activity文件加入以下代碼

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
public class SpinnerActivity extends Activity {
  private static final String[] m={"A型","B型","O型","AB型","其他"};
  private TextView view ;
  private Spinner spinner;
  private ArrayAdapter<String> adapter;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.spinner);
    view = (TextView) findViewById(R.id.spinnerText);
    spinner = (Spinner) findViewById(R.id.Spinner01);
    //將可選內(nèi)容與ArrayAdapter連接起來
    adapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,m);
    //設置下拉列表的風格
    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    //將adapter 添加到spinner中
    spinner.setAdapter(adapter);
    //添加事件Spinner事件監(jiān)聽
    spinner.setOnItemSelectedListener(new SpinnerSelectedListener());
    //設置默認值
    spinner.setVisibility(View.VISIBLE);
  }
  //使用數(shù)組形式操作
  class SpinnerSelectedListener implements OnItemSelectedListener{
    public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
        long arg3) {
      view.setText("你的血型是："+m[arg2]);
    }
    public void onNothingSelected(AdapterView<?> arg0) {
    }
  }
}

二、使用XML作為數(shù)據(jù)源

1. 在values文件夾下新建一個arryas.xml文件：代碼如下

<?xml version="1.0" encoding="utf-8"?>
<resources>
  <string-array name="plantes">
    <item>NOKIA</item>
    <item>MOTO</item>
    <item>HTC</item>
    <item>LG</item>
    <item>其他</item>
  </string-array>
</resources>

2. 在Activity文件加入以下代碼

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.TextView;
public class SpinnerActivity extends Activity {
  private TextView view2;
  private Spinner spinner2;
  private ArrayAdapter adapter2;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.spinner);
    spinner2 = (Spinner) findViewById(R.id.spinner02);
    view2 = (TextView) findViewById(R.id.spinnerText02);
    //將可選內(nèi)容與ArrayAdapter連接起來
    adapter2 = ArrayAdapter.createFromResource(this, R.array.plantes, android.R.layout.simple_spinner_item);
    //設置下拉列表的風格
 adapter2.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
    //將adapter2 添加到spinner中
    spinner2.setAdapter(adapter2);
    //添加事件Spinner事件監(jiān)聽
    spinner2.setOnItemSelectedListener(new SpinnerXMLSelectedListener());
    //設置默認值
    spinner2.setVisibility(View.VISIBLE);
  }
  //使用XML形式操作
  class SpinnerXMLSelectedListener implements OnItemSelectedListener{
    public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,
        long arg3) {
      view2.setText("你使用什么樣的手機："+adapter2.getItem(arg2));
    }
    public void onNothingSelected(AdapterView<?> arg0) {
    }
  }
}