如何到达列表视图的底部,装载更多的物品 [英] How to reach bottom of listview, load more items
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问题描述
当我达到我的ListView(向下滚动,直到结束)的底部,我怎么装入多个项目?
这里是我的类(也许它会帮助)
公共类ListFood延伸活动{ INT用户ID;
串猫; / **当第一次创建活动调用。 * /
@覆盖
公共无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.list_food); LV的ListView =(ListView控件)findViewById(R.id.ListView01);
TextView的电视=(的TextView)findViewById(R.id.TextView01);
Webservice的WS =新的WebService();
清单< Afood>名单=新的ArrayList< Afood>();
INT I; 束束= getIntent()getExtras()。
用户ID = bundle.getInt(用户id);
猫= bundle.getString(猫); 清单= ws.getFoodFromCat(CAT);
的String [] =食品新的String [则为list.size()]; 对于(i = 0; I<则为list.size();我++)
{
食品[I] = list.get(I)。名称;
} 如果(cat.equalsIgnoreCase(快餐))
tv.setText(快餐);
其他
tv.setText(猫); lv.setAdapter(新ArrayAdapter<串GT;(这一点,R.layout.list食品)); lv.setTextFilterEnabled(真); lv.setOnItemClickListener(新OnItemClickListener(){
公共无效onItemClick(适配器视图<>母公司,观景,
INT位置,长的id){
//单击时,显示的文字TextView的敬酒
Toast.makeText(getApplicationContext(),((TextView的)视图).getText()
Toast.LENGTH_SHORT).show();
}
});
}}
解决方案
在除了回答@jleedev前提是,你还可以用我的 EndlessAdapter
这一点。
When I reach the bottom of my ListView (Scroll down until the end), how do I load more items? Here is my class (maybe it will help)
public class ListFood extends Activity {
int userid;
String cat;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_food);
ListView lv = (ListView) findViewById(R.id.ListView01);
TextView tv = (TextView) findViewById(R.id.TextView01);
Webservice ws = new Webservice();
List<Afood> list = new ArrayList<Afood>();
int i;
Bundle bundle = getIntent().getExtras();
userid = bundle.getInt("userid");
cat = bundle.getString("cat");
list = ws.getFoodFromCat(cat);
String [] food = new String [list.size()];
for(i=0;i<list.size();i++)
{
food[i] = list.get(i).name;
}
if(cat.equalsIgnoreCase("FastFood"))
tv.setText("Fast Food");
else
tv.setText(cat);
lv.setAdapter(new ArrayAdapter<String>(this, R.layout.list, food));
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
Toast.makeText(getApplicationContext(), ((TextView) view).getText(),
Toast.LENGTH_SHORT).show();
}
});
}
}
解决方案
In addition to the answer that @jleedev provided, you can also use my EndlessAdapter
for this.
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