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Android列表显示（ListView）
最终的运行效果如图：
具体的实现操作如下：
1、创建名为ListView的工程
2、编写string.xml.具体代码如下所示：
1 <?xml version="1.0" encoding="utf-8"?>2 <resources>3 4 <string name="app_name">ListView示例</string>5 <string name="hello_world">Hello world!</string>6 <string name="action_settings">Settings</string>7 <string name="name">姓名</string>8 9 </resources>
3、编写main.xml文件。具体代码如下所示：
1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 xmlns:tools="http://schemas.android.com/tools" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:paddingBottom="@dimen/activity_vertical_margin" 6 android:paddingLeft="@dimen/activity_horizontal_margin" 7 android:paddingRight="@dimen/activity_horizontal_margin" 8 android:paddingTop="@dimen/activity_vertical_margin" 9 tools:context="com.example.listview.MainActivity$PlaceholderFragment" >10 11 12 <LinearLayout 13 android:orientation="vertical"14 android:layout_width="fill_parent"15 android:layout_height="fill_parent"16 >17 <TextView 18 android:layout_width="fill_parent"19 android:layout_height="wrap_content"20 android:text="@string/name"/>21 <ListView 22 android:layout_width="fill_parent"23 android:layout_height="wrap_content"24 android:id="@+id/listview"25 ></ListView>26 </LinearLayout>27 </RelativeLayout>
4、编写MainActivity.java文件。具体代码如下所示：
1 package com.example.listview; 2 3 import android.support.v7.app.ActionBarActivity; 4 import android.support.v7.app.ActionBar; 5 import android.support.v4.app.Fragment; 6 import android.annotation.SuppressLint; 7 import android.os.Bundle; 8 import android.view.LayoutInflater; 9 import android.view.Menu;10 import android.view.MenuItem;11 import android.view.View;12 import android.view.ViewGroup;13 import android.widget.AdapterView;14 import android.widget.ArrayAdapter;15 import android.widget.ListView;16 import android.widget.Toast;17 import android.os.Build;18 19 public class MainActivity extends ActionBarActivity {20 21 @Override22 protected void onCreate(Bundle savedInstanceState) {23 super.onCreate(savedInstanceState);24 setContentView(R.layout.activity_main);25 26 if (savedInstanceState == null) {27 getSupportFragmentManager().beginTransaction()28 .add(R.id.container, new PlaceholderFragment()).commit();29 }30 }31 32 @Override33 public boolean onCreateOptionsMenu(Menu menu) {34 35 // Inflate the menu; this adds items to the action bar if it is present.36 getMenuInflater().inflate(R.menu.main, menu);37 return true;38 }39 40 @Override41 public boolean onOptionsItemSelected(MenuItem item) {42 // Handle action bar item clicks here. The action bar will43 // automatically handle clicks on the Home/Up button, so long44 // as you specify a parent activity in AndroidManifest.xml.45 int id = item.getItemId();46 if (id == R.id.action_settings) {47 return true;48 }49 return super.onOptionsItemSelected(item);50 }51 52 /**53 * A placeholder fragment containing a simple view.54 */55 @SuppressLint("ValidFragment")56 public class PlaceholderFragment extends Fragment {57 58 @SuppressLint("ValidFragment")59 public PlaceholderFragment() {60 }61 62 @Override63 public View onCreateView(LayoutInflater inflater, ViewGroup container,64 Bundle savedInstanceState) {65 View rootView = inflater.inflate(R.layout.fragment_main, container,66 false);67 //获取控件的ID68 final ListView listview=(ListView)rootView.findViewById(R.id.listview);69 //定义数组70 final String[] name={"张三","李四","王五","刘刘"};71 //创建一个ArrayAdapter72 ArrayAdapter adapter=new ArrayAdapter(MainActivity.this,android.R.layout.simple_expandable_list_item_1,name);73 listview.setAdapter(adapter);74 //注册一个元素单击事件监听方法75 listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {76 77 @Override78 public void onItemClick(AdapterView<?> arg0, View view,79 int position, long id) {80 // TODO Auto-generated method stub81 Toast.makeText(MainActivity.this, name[position], Toast.LENGTH_LONG).show();82 }83 });84 return rootView;85 }86 }87 88 }
Android列表显示（ListView）
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