Question

在 Android 应用程序中,我有一个搜索选项,该选项使用网络服务(在搜索栏中搜索关键字),并在屏幕上显示结果。下次,当我搜索不同的关键字时,结果被附加到第一个结果并显示。我想要的是,删除/清除第一个结果,然后显示第二个结果,而不是将结果添加到第一个结果。请作为 Anderroid 的 Ambie 帮助。

public class Srch_Widget extends ListActivity {

ListView lv;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.mysearchscreen);

//In the search box, i will be typing an alphabet and click on "GO button"

goButton.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {

//I m using webservices to retrieve data(JSON String) and will get "EmpName", "EmpID",
"Salary" and the data will be in a single list called "searchlist" that I used below in
ser_listadapter.(if you want I can paste the entire webservices)

ser_listadapter();

}

});
}

public void ser_listadapter() {
ListAdapter adapter = new SimpleAdapter(this,searchlist,
            R.layout.searchmain, new String[] { "EmpName", "EmpID",
                    "Salary" }, new int[] {
                    R.id.eid, R.id.ename, R.id.sal});

//"searchmain" layout contains 3 textviews with id s: eid,ename,sal

setListAdapter(adapter);
lv = getListView();
lv.setTextFilterEnabled(true);
}
}

Answer 1

确保清除您的搜索列表, 在您在Click 上和在拨打您的网络服务前 :

public void onClick(View v) {
    searchlist.clear();
    callwebservice(searchlist);
    ser_listadapter();
}

友情链接