常见数据适配器

常见数据适配器

• ArrayAdapter 数组适配器

  java代码：（要记得声明ListView控件）
  
  String[] objects = new String[]{"app","context","Media","nfc","os"}
  lv.setAdapter(new ArrayAdapter<String>(this,R.layout.item,objects));
  
  Android代码： 
  
  <TextView xmlns:android="http://schemas.android.com/apk/res/android"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" 
         android:textSize="20dp"
         android:textColor="#66ff0000"
  >
  </TextView>
  

  ​

• SimpleAdapter 简单数据适配器

• java代码：（要记得声明ListView控件）
  
  List<Map<String,Object>> data= new                            ArrayList<Map<String,Object>>();
        Map<String,Object> map1 = new HashMap<String, Object>();
        map1.put("icon",R.drawable.ic_launcher);
        map1.put("name", "功能设置");
        data.add(map1);
        Map<String,Object> map2 = new HashMap<String, Object>();
        map2.put("icon",R.drawable.ic_tupian);
        map2.put("name", "qita设置");
        data.add(map2);
    lv.setAdapter(newSimpleAdapter(this,data,R.layout.item, new String[]{"icon","name"}, new int[]{R.id.iv,R.id.tv}));
    
  Android代码： 
  
  <LinearLayout 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:orientation="horizontal">
      <ImageView 
          android:id="@+id/iv"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content" />
      <TextView  
          android:id="@+id/tv"          
          android:layout_width="wrap_content"
          android:layout_height="wrap_content" />
  <LinearLayout/>