谁能告诉我重新加载 Spinner 的代码？
我创建了一个小应用程序，我可以在其中添加一些项目并删除不需要的项目。添加的项目将显示在微调器中。一旦我从微调器中选择了一个项目并单击删除按钮将其删除，该项目将从数据库中删除，并且我得到一个显示“已删除项目”的 Toast。但它仍然显示在微调器中，直到我注销并再次登录。在这里，我想我需要在单击删除按钮时再次重新加载微调器。任何人都可以帮我做到这一点吗？
public class DeleteChildActivity extends Activity {
TextView name;
Button delete;
Spinner spinner2;
private String URL = "/ParentProfileServlet";
private String URL1 = "/ChildProfileServlet";
private String URL2 = "/DeleteChildServlet";
ArrayList<NameValuePair> postparameter;
public static int selectChildId;
public static String imei;
ParentDetailsMod parentModel;
private ArrayList<ChildDetails> childArray = null;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.delete_child);
delete = (Button) findViewById(R.id.B_delchild);
spinner2 = (Spinner) findViewById(R.id.childspinner);
childArray = new SelectParser().parseSelectXml(response);
ArrayList<String> stringArray = new ArrayList<String>();
for (ChildDetails childModel : childArray) {
String str;
str = childModel.getName();
stringArray.add(str);
}
// spinner = (Spinner) findViewById(R.id.spinner11);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
getApplicationContext(), android.R.layout.simple_list_item_1,
stringArray);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner2.setAdapter(adapter);
spinner2.setPrompt(getString(R.string.selectLabel));
spinner2.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long arg3) {
imei = childArray.get(position).getImei_num();
selectChildId = childArray.get(position).getChild_id();
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
delete.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// spinner.performClick();
// String id = spinner2.getSelectedItem().toString();
// selectChildId = id.substring(0, id.indexOf("--"));
postparameter = new ArrayList<NameValuePair>();
String parent_id = LoginPageActivity.id;
postparameter
.add(new BasicNameValuePair("parent_id", parent_id));
postparameter.add(new BasicNameValuePair("child_id",
selectChildId + ""));
String response = null;
try {
response = CustomHttpClient.executeHttpPost(URL2,
postparameter);
System.out.println("response:" + response);
if (response.trim().compareTo("success") == 0) {
Toast.makeText(getApplicationContext(),
"Child deleted", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(),
"Failed to delete", Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});