android Listview2 筆記

ListView編程的一般步驟

1）在布局檔案中聲明ListView控制項

2) 使用一維或多維動態數組儲存ListView要顯示的資料 ；

3) 構建適配器Adapter,將資料與顯示資料的布局頁面綁定； 

4）通過setAdapter()方法把適配器設定給ListView

第一步：編寫布局檔案main.xml，添加三個Textview和listview實現整體布局。具體代碼如下

 

View Code

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:orientation="vertical"
 4     android:layout_width="fill_parent"
 5     android:layout_height="fill_parent"
 6     >
 7     <TextView android:layout_width="fill_parent"
 8             android:layout_height="wrap_content"
 9             android:text="@string/tv1"
10             android:background="#FFF"
11             android:textColor="#888"
12             android:gravity="center"/>
13     <ListView android:id="@+id/lvCheckedTextView"
14             android:layout_width="fill_parent"
15             android:layout_height="wrap_content"/>
16     
17     <TextView android:layout_width="fill_parent"
18             android:layout_height="wrap_content"
19             android:text="@string/tv2"
20             android:background="#FFF"
21             android:textColor="#888"
22             android:gravity="center"/>
23     <ListView android:id="@+id/lvRadioButton"
24             android:layout_width="fill_parent"
25             android:layout_height="wrap_content"/>
26             
27     <TextView android:layout_width="fill_parent"
28             android:layout_height="wrap_content"
29             android:text="@string/tv3"
30             android:background="#FFF"
31             android:textColor="#888"
32             android:gravity="center"/>
33     <ListView android:id="@+id/lvCheckedButton"
34             android:layout_width="fill_parent"
35             android:layout_height="wrap_content"/>
36         
37 </LinearLayout>

 

第二步：修改String.xml檔案的內容，方便程式或者main.xml訪問，具體代碼如下

 

View Code

1 <?xml version="1.0" encoding="utf-8"?>
2 <resources>
3     <string name="hello">Hello World, Listview02Activity!</string>
4     <string name="app_name">Listview02</string>
5     <string name="tv1">單項打勾</string>
6     <string name="tv2">RadioButton</string>
7     <string name="tv3">CheckBox</string>
8 </resources>

 

第三步：修改ListView01.java，添加listview的相關操作，具體代碼如下

 

View Code

 1 package cn.shaoyangjiang.com;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 import android.widget.ArrayAdapter;
 6 import android.widget.ListView;
 7 
 8 public class Listview02Activity extends Activity {
 9     /** Called when the activity is first created. */
10     @Override
11     public void onCreate(Bundle savedInstanceState) {
12         super.onCreate(savedInstanceState);
13         setContentView(R.layout.main);
14         //得到三個listview
15         ListView listview1 = (ListView)findViewById(R.id.lvCheckedTextView);
16         ListView listview2 = (ListView)findViewById(R.id.lvRadioButton);
17         ListView listview3 = (ListView)findViewById(R.id.lvCheckedButton);
18         //用string來儲存listview要顯示的資料
19         String[] data = new String[]
20            {"邵洋江加油","你會成功的"};
21         //構建適配器Adapter,將資料與顯示資料的布局頁面綁定；
22         ArrayAdapter<String> lv1Adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_checked,data);
23         //通過setAdapter()方法把適配器設定給ListView
24         listview1.setAdapter(lv1Adapter);
25         //listview裡的內容設定為單選
26         listview1.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
27         
28         ArrayAdapter<String> lv2Adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_single_choice,data);
29         listview2.setAdapter(lv2Adapter);
30         listview2.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
31         
32         ArrayAdapter<String> lv3Adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_multiple_choice,data);
33         listview3.setAdapter(lv3Adapter);
34         listview3.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
35         }
36 }

 

具體效果如下：

 

如果還想深入瞭解，下面的連結不錯

 

 

 

Android之Adapter用法總結：http://kb.cnblogs.com/a/2328334/