android開發最常用例子整理----(2)自訂ListView(SimpleAdapter實現)

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android開發最常用例子整理----(2)自訂ListView(SimpleAdapter實現)


一、Activity

MainActivity.java源碼：

public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//Step1String[] contentArray = new String[]{"內容1","內容2","內容3","內容4","內容5"};ListView lv = (ListView)findViewById(R.id.lv);//Step2ArrayList<HashMap<String,Object>> lists = new ArrayList<HashMap<String,Object>>();for(int i=0; i<contentArray.length; i++){HashMap<String,Object> map = new HashMap<String,Object>();map.put("startTimeText", "22:00");            map.put("endTimeText", "23:00");            map.put("separator", R.drawable.separator);            map.put("content", contentArray[i]);            lists.add(map);}//Step3SimpleAdapter adapter = new SimpleAdapter(this,lists,R.layout.list_item,new String[]{"startTimeText","endTimeText","separator","content"},new int[] {R.id.startTimeText,R.id.endTimeText,R.id.separator,R.id.content});//Step4lv.setAdapter(adapter);}}

二、xml布局檔案

(1)MainActivity主介面的布局源碼activity_main.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <ListView    android:id="@+id/lv" android:layout_width="match_parent"     android:layout_height="wrap_content"/></LinearLayout>

(1)ListView列表單元的布局源碼list_item.xml:

<?xml version="1.0" encoding="utf-8" ?> <LinearLayout     xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="60dp" android:gravity="center_vertical"android:layout_width="match_parent"android:orientation="horizontal">       <LinearLayout         android:layout_width="0dp"        android:layout_height="match_parent" android:layout_weight="2"android:gravity="center_vertical"android:orientation="vertical">          <TextView              android:id="@+id/startTimeText"              android:layout_height="wrap_content"   android:layout_width="match_parent"  android:text="22:00"/>          <TextView              android:id="@+id/endTimeText"              android:layout_height="wrap_content"  android:layout_width="match_parent"  android:text="23:00"/>      </LinearLayout>      <ImageView     android:id="@+id/separator"    android:layout_weight="1"     android:layout_width="0dp"android:layout_height="wrap_content" />  <TextView    android:id="@+id/content"      android:layout_width="0dp"    android:layout_height="wrap_content" android:layout_weight="12"/> </LinearLayout>

三、相關資源

res/drawable-mdpi/下的檔案：

 separator.png

四、效果

android開發最常用例子整理----(2)自訂ListView(SimpleAdapter實現)