android listview 三种适配器设置
16lz
2021-01-23
1:
2: xml
代码
3:
- public class ArrayAdapterActivity extends ListActivity {
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- //列表项的数据
- String[] strs = {"1","2","3","4","5"};
- ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,strs);
- setListAdapter(adapter);
- }
- }
2: xml
- <?xml version="1.0" encoding="utf-8"?>
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
- android:orientation="vertical"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent"
- >
- <ImageView
- android:id="@+id/img"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_margin="5dp"
- />
- <TextView
- android:id="@+id/title"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:textColor="#ffffff"
- android:textSize="20sp"
- />
- LinearLayout>
代码
- public class SimpleAdapterActivity extends ListActivity {
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- SimpleAdapter adapter = new SimpleAdapter(this, getData(), R.layout.simple, new String[] { "title", "img" }, new int[] { R.id.title, R.id.img });
- setListAdapter(adapter);
- }
- private List<Map<String, Object>> getData() {
- //map.put(参数名字,参数值)
- List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
- Map<String, Object> map = new HashMap<String, Object>();
- map.put("title", "摩托罗拉");
- map.put("img", R.drawable.icon);
- list.add(map);
- map = new HashMap<String, Object>();
- map.put("title", "诺基亚");
- map.put("img", R.drawable.icon);
- list.add(map);
- map = new HashMap<String, Object>();
- map.put("title", "三星");
- map.put("img", R.drawable.icon);
- list.add(map);
- return list;
- }
- }
3:
- public class SimpleCursorAdapterActivity extends ListActivity {
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- //获得一个指向系统通讯录数据库的Cursor对象获得数据来源
- Cursor cur = getContentResolver().query(People.CONTENT_URI, null, null, null, null);
- startManagingCursor(cur);
- //实例化列表适配器
- ListAdapter adapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_1, cur, new String[] {People.NAME}, new int[] {android.R.id.text1});
- setListAdapter(adapter);
- }
- }
更多相关文章
- Android中数据的保存和提取
- android-数据库操作实例,留着以后用
- Android之数据库
- Android与服务器传递数据
- Android的几种数据存储方式
- android客户端通过Get方式提交参数给服务器,使用URL和HttpURLConn
- Android中intent如何传递自定义数据类型
- android使用notifyDataSetChanged()方法,adapter的数据更新了,但是
- Android 数据存储之SQLite数据库