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列表选择Spinner
1.只用XML配置来显示列表
在res\values中添加一个arrays.xml
1 <?xml version="1.0" encoding="utf-8"?> 2 <resources> 3 4 <string-array name="books"> 5 <item>口里奇才</item> 6 <item>凸显</item> 7 <item>下雨目前</item> 8 <item>越来越一直在于</item> 9 </string-array>10 11 </resources>
在主页面的xml中添加Spinner
1 <Spinner2 android:id="@+id/spi3"3 android:layout_width="match_parent"4 android:layout_height="wrap_content"5 android:entries="@array/books" >6 </Spinner>
效果
2.用后台动态添加
布局：
1 <Spinner2 android:id="@+id/spi"3 android:layout_width="match_parent"4 android:layout_height="wrap_content" >5 </Spinner>
添加数据类
1 package com.example.myadapter; 2 3 import java.util.ArrayList; 4 import java.util.HashMap; 5 import java.util.List; 6 import java.util.Map; 7 8 import com.example.androidspinner.R; 9 10 public class Myadapter {11 12 public Myadapter() {13 // TODO Auto-generated constructor stub14 }15 16 public static List<String> getData(){17 List<String> list=new ArrayList<String>();18 list.add("北京");19 list.add("武汉");20 list.add("广州");21 return list;22 }23 24 }主程序中添加数据绑定
1 package com.example.androidspinner; 2 3 import java.util.List; 4 import java.util.Map; 5 6 import com.example.myadapter.Myadapter; 7 8 import android.os.Bundle; 9 import android.app.Activity;10 import android.view.Menu;11 import android.view.View;12 import android.widget.AdapterView;13 import android.widget.AdapterView.OnItemSelectedListener;14 import android.widget.ArrayAdapter;15 import android.widget.SimpleAdapter;16 import android.widget.Spinner;17 18 public class AndroidSpinnerActivity extends Activity {19 private Spinner spi;20 21 @Override22 protected void onCreate(Bundle savedInstanceState) {23 super.onCreate(savedInstanceState);24 setContentView(R.layout.activity_android_spinner);25 spi = (Spinner) this.findViewById(R.id.spi);26 List<String> list = Myadapter.getData();27 ArrayAdapter<String> adapter = new ArrayAdapter<String>(28 AndroidSpinnerActivity.this,29 android.R.layout.simple_spinner_item, list);30 spi.setAdapter(adapter);31 32 }33 34
40 }41 42 @Override43 public boolean onCreateOptionsMenu(Menu menu) {44 // Inflate the menu; this adds items to the action bar if it is present.45 getMenuInflater().inflate(R.menu.activity_android_spinner, menu);46 return true;47 }48 49 }
3.选项加图标
布局：
1 <Spinner2 android:id="@+id/spi2"3 android:layout_width="match_parent"4 android:layout_height="wrap_content" >5 </Spinner>
添加数据类
1 package com.example.myadapter; 2 3 import java.util.ArrayList; 4 import java.util.HashMap; 5 import java.util.List; 6 import java.util.Map; 7 8 import com.example.androidspinner.R; 9 10 public class Myadapter {11 12 public Myadapter() {13 // TODO Auto-generated constructor stub14 }15 16 17 public static List<Map<String, Object>> getMapData(){18 List<Map<String, Object>> list=new ArrayList<Map<String,Object>>();19 Map<String, Object> map1=new HashMap<String, Object>();20 map1.put("logo", R.drawable.add);21 map1.put("appname", "北京");22 list.add(map1);23 24 Map<String, Object> map2=new HashMap<String, Object>();25 map2.put("logo", R.drawable.application);26 map2.put("appname", "武汉");27 list.add(map2);28 return list;29 30 }31 32 }主程序中添加数据绑定
1 package com.example.androidspinner; 2 3 import java.util.List; 4 import java.util.Map; 5 6 import com.example.myadapter.Myadapter; 7 8 import android.os.Bundle; 9 import android.app.Activity;10 import android.view.Menu;11 import android.view.View;12 import android.widget.AdapterView;13 import android.widget.AdapterView.OnItemSelectedListener;14 import android.widget.ArrayAdapter;15 import android.widget.SimpleAdapter;16 import android.widget.Spinner;17 18 public class AndroidSpinnerActivity extends Activity {19 private Spinner spi2;20 21 @Override22 protected void onCreate(Bundle savedInstanceState) {23 super.onCreate(savedInstanceState);24 setContentView(R.layout.activity_android_spinner);25 26 spi2 = (Spinner) this.findViewById(R.id.spi2);27 28 List<Map<String, Object>> listMap = Myadapter.getMapData();29 30 SimpleAdapter simpleAdapter = new SimpleAdapter(31 AndroidSpinnerActivity.this, listMap, R.layout.items,32 new String[] { "logo", "appname" }, new int[] { R.id.imgview,33 R.id.labview });34 spi2.setAdapter(simpleAdapter);35 36 spi2.setOnItemSelectedListener(new OnItemSelectedListener() {37 38 @Override39 public void onItemSelected(AdapterView<?> parent, View arg1,40 int position, long id) {41 String appname=((Map<String,Object>)spi2.getItemAtPosition(position)).get("appname").toString();42 setTitle(appname);43 }44 45 @Override46 public void onNothingSelected(AdapterView<?> arg0) {47 // TODO Auto-generated method stub48 49 }50 });51 }52 53 @Override54 public boolean onCreateOptionsMenu(Menu menu) {55 // Inflate the menu; this adds items to the action bar if it is present.56 getMenuInflater().inflate(R.menu.activity_android_spinner, menu);57 return true;58 }59 60 }
列表选择Spinner
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