Adapter适配器的区别小结

3种适配器的区别

private ListView lv;
lv.setAdapter(adapter);
private class MyAdapter extends BaseAdapter {

@Override
public int getCount() {// 获取一共有多少个条目
return students.size();
}

@Override
public View getView(final int position, View convertView,
ViewGroup parent) {
View view = null;
if (convertView == null) {
// 把一个布局xml文件转化成view对象
view = View.inflate(MainActivity.this, R.layout.item, null);
} else {
view = convertView;
}

lv = (ListView) findViewById(R.id.lv);
String[] objects = new String[]{"Animation","App","content","Media","NFC","OS"};
lv.setAdapter(new ArrayAdapter<String>(this, R.layout.item, objects));

安卓提供的
android.R.layout.simple_list_item_1

lv_act.setOnItemClickListener(listener);

List<Map<String, Object>> data = new ArrayList<Map<String,Object>>();
Map<String, Object> map1 = new HashMap<String, Object>();
map1.put("icon", R.drawable.ic_menu_preferences);
map1.put("name", "功能设置");
data.add(map1);
lv.setAdapter(new SimpleAdapter(this, data, R.layout.item, new String[]{"icon","name"}, new int[]{R.id.iv,R.id.tv}));