package com.example1.listviewpracticvce; /*  * 本例子實(shí)現(xiàn)的功能:  * 用listview顯示給定的一個(gè)靜態(tài)數(shù)組，數(shù)組定義在string.xml中攻或者activity中  */  import android.net.sip.SipAudioCall.Listener; import android.os.Bundle;  import android.app.ListActivity; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast;  public class MainActivity extends ListActivity {//也可以用activity //static final String[] CONTENT={"china","america","russia","japan"}; // String[] countries = getResources().getStringArray(R.array.countries_array); // 數(shù)據(jù)類型是不能放在public里的，必須話oncreate里面!!   @Override   protected void onCreate(Bundle savedInstanceState) {     String[] countries = getResources().getStringArray(R.array.countries_array);     // setContentView(R.layout.main);  extends ListActivity后就注意這里不用這條語句     super.onCreate(savedInstanceState);       //這種方法將數(shù)組存放在values/string.xml里面，顯得不亂，但是如果數(shù)據(jù)來源于網(wǎng)絡(luò)就不好了 //   setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item, COUNTRIES));     //adapter有好幾種，處理數(shù)據(jù)庫用cursoradapter     //只有activity extends listactivity才能用setListAdapter     setListAdapter(new ArrayAdapter<String>(this, R.layout.list_item,countries)); //   綁定數(shù)組                                          context   每一行顯示的布局     數(shù)組文件     //setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,CONTENT));     ListView lV = getListView();       //當(dāng)你遵循了listview的這些規(guī)則后，用這條語句就能自動(dòng)獲取listview       //listview的規(guī)則有:       //（1）activity extends listactivity(不必須)       //(2)view必須包含五個(gè)listview對(duì)象，并且id這樣命名:"","@id/android:list",當(dāng)沒有l(wèi)istview的內(nèi)容時(shí)可以用"@id/android:empty"來顯示其它信息       //(3)當(dāng)listview比較簡(jiǎn)單時(shí)可以不用自己定義list_item，它給我們提供了一個(gè)定義好的:android.R.layout.simple_list_item_1只有遵循了(2)才行            lV.setTextFilterEnabled(true);     //點(diǎn)擊事件最好直接copy，我試了下寫new listener居然是不能顯示的     lV.setOnItemClickListener(new OnItemClickListener() {       public void onItemClick(AdapterView<?> parent, View view, int position,long id) {         Toast.makeText(getApplicationContext(), ((TextView)view).getText(), Toast.LENGTH_SHORT).show();       }       });        }  } 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"   xmlns:tools="http://schemas.android.com/tools"   android:layout_width="match_parent"   android:layout_height="match_parent"   android:paddingBottom="@dimen/activity_vertical_margin"   android:paddingLeft="@dimen/activity_horizontal_margin"   android:paddingRight="@dimen/activity_horizontal_margin"   android:paddingTop="@dimen/activity_vertical_margin"   tools:context=".MainActivity" >    <TextView     android:id="@+id/hello"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:text="@string/hello_world" />    <ListView     android:id="@android:id/list"     android:layout_width="wrap_content"     android:layout_height="wrap_content" />  </RelativeLayout> 

<?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android"   android:layout_width="fill_parent"   android:layout_height="fill_parent"   android:padding="10dp"   android:textSize="16sp" > </TextView> 

<?xml version="1.0" encoding="utf-8"?> <resources>    <string name="app_name">28.ListViewPracticvce</string>   <string name="action_settings">Settings</string>   <string name="hello_world">Hello world!</string>   <string-array name="countries_array">     <item>Bahrain</item>     <item>Bangladesh</item>     <item>Barbados</item>     <item>Belarus</item>     <item>Belgium</item>     <item>Belize</item>     <item>Benin</item>   </string-array>  </resources>