ArrayAdapter和SimpleAdapter

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1、ArrayAdapter

// 匹配布局文件中的ListView控件listView = (ListView) findViewById(R.id.listView);// 数据适配器的定义String[] data = new String[] { "java", "C++", "JavaScript", "Php","Python" };ArrayAdapter<String> adapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1, data);// 给ListView设置数据适配器 listView.setAdapter(adapter);

其中android.R.layout.simple_list_item_1是android系统自带的listitem

<TextView xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@android:id/text1"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:textAppearance="?android:attr/textAppearanceListItemSmall"    android:gravity="center_vertical"    android:paddingStart="?android:attr/listPreferredItemPaddingStart"    android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"    android:minHeight="?android:attr/listPreferredItemHeightSmall"/>

2、SimpleAdapter

private ListView listView;private SimpleAdapter simple_adapter;private List<Map<String, Object>> list;        @Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);// 匹配布局文件中的ListView控件listView = (ListView) findViewById(R.id.listView);                getData();                // 设置SimpleAdapter监听器simple_adapter = new SimpleAdapter(MainActivity.this,list, R.layout.list_item,new String[] { "image", "text" }, new int[] { R.id.image,R.id.text });listView.setAdapter(simple_adapter);}                // 加载SimpleAdapter数据集        private List<Map<String, Object>> getData() {list = new ArrayList<Map<String, Object>>();Map<String, Object> map = new HashMap<String, Object>();map.put("text", "java");map.put("image", R.drawable.ic_launcher);Map<String, Object> map2 = new HashMap<String, Object>();map2.put("text", "C++");map2.put("image", R.drawable.ic_launcher);Map<String, Object> map3 = new HashMap<String, Object>();map3.put("text", "JavaScript");map3.put("image", R.drawable.ic_launcher);Map<String, Object> map4 = new HashMap<String, Object>();map4.put("text", "Php");map4.put("image", R.drawable.ic_launcher);Map<String, Object> map5 = new HashMap<String, Object>();map5.put("text", "Python2");map5.put("image", R.drawable.ic_launcher);list.add(map);list.add(map2);list.add(map3);list.add(map4);list.add(map5);Log.i("Main", list.size() + "");return list;}

list_item.xml

<?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:gravity="center_vertical"    android:orientation="horizontal" >    <ImageView        android:id="@+id/image"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginLeft="10dp" />    <TextView        android:id="@+id/text"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginLeft="10dp"        android:textSize="25sp" /></LinearLayout>

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