SimpleAdapter in Android

參考:http://developer.android.com/reference/android/widget/SimpleAdapter.html

首先先看SimpleAdapter 的Constructor

public SimpleAdapter (Context context, List<? extends Map<String, ?>> data, int resource, String[] from, int[] to)

Since: API Level 1

Constructor

Parameters

context	The context where the View associated with this SimpleAdapter is running
data	A List of Maps. Each entry in the List corresponds to one row in the list. The Maps contain the data for each row, and should include all the entries specified in "from"
resource	Resource identifier of a view layout that defines the views for this list item. The layout file should include at least those named views defined in "to"
from	A list of column names that will be added to the Map associated with each item.
to	The views that should display column in the "from" parameter. These should all be TextViews. The first N views in this list are given the values of the first N columns in the from parameter.

可以看到SimpleAdapter 需要五個參數

context   上下文

data       看名字就可以想到是數據源 必須是List of Maps

resource 每個Item的template

from       data要用到的值

to           那些值對應到的id

一個一個解決他們
1.上下文不用說了
2.創建List of Maps

Map<String, String> _Data = new HashMap<String, String>();
_Data.put("Title", "Hello");
_Data.put("Name", "Maca");

Map<String, String> _Data2 = new HashMap<String, String>();
_Data2.put("Title", "你好");
_Data2.put("Name", "馬卡");

List<Map<String, String>> _DataList = new ArrayList<Map<String,String>>() ;

_DataList.add(_Data);
_DataList.add(_Data2);

3.建立layout 看要拖拉點放 還是用打的 以下是範例

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">

<TextView
android:id="@+id/tvTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge" />

<TextView
android:id="@+id/tvName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge" />

</LinearLayout>

4.from:  宣告一個String[]
String[] _StringArray = new String[]{"Title","Name"};
5.from:  宣告一個int[]

int[] _IdArray = new int[]{R.id.tvTitle,R.id.tvName};
6.最後宣告SimpleAdapter

SimpleAdapter _Adapter = new SimpleAdapter(this, _DataList, R.layout.list_template, _StringArray, _IdArray);


7.別忘了把ListView綁定Adapter

ListView _ListView = (ListView)findViewById(R.id.lvMainPage);
_ListView.setAdapter(_Adapter);


效果