我正在使用AsyncTask实现Custom AutoComplete .AsyncTask用于从服务器获取所需的数据。 我这样做了如下
RequestRecommendations.java文件的内容如下
AutoCompleteTextView request_recommendation_fragment_employee_name;
ArrayList<AutoCompleteItems> ArrayEmployeeName = new ArrayList<AutoCompleteItems>();
MyAutoCompleteAdapter Adapter_Employee_Name;
AsyncTaskAdvanceSearchRecommendationFragment advanceSearchRecommendationFragment;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
layoutView = inflater.inflate(R.layout.fragment_request_recommendation, container, false);
request_recommendation_fragment_employee_name = (AutoCompleteTextView) layoutView.findViewById(R.id
.request_recommendation_fragment_employee_name);
request_recommendation_fragment_employee_name.setThreshold(1);
Adapter_Employee_Name = new MyAutoCompleteAdapter(getActivity(), ArrayEmployeeName);
request_recommendation_fragment_employee_name.setAdapter(Adapter_Employee_Name);
request_recommendation_fragment_employee_name.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// ApplicationStaticMethods.toastDebug(getActivity(),"On text change");
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// ApplicationStaticMethods.toastDebug(getActivity(),"Before text change");
}
@Override
public void afterTextChanged(Editable s) {
//
advanceSearchRecommendationFragment = new AsyncTaskAdvanceSearchRecommendationFragment();
advanceSearchRecommendationFragment.execute();
// ApplicationStaticMethods.toastDebug(getActivity(),"After text change");
}
});
return layoutView;
}
我的自动完成适配器如下
public class MyAutoCompleteAdapter extends ArrayAdapter<AutoCompleteItems> implements Filterable {
private Activity context;
private ArrayList<AutoCompleteItems> values;
public MyAutoCompleteAdapter(Activity context, ArrayList<AutoCompleteItems> items) {
super(context, 0, items);
this.values = items;
this.context = context;
}
public int getCount() {
return values.size();
}
// public Object getItem(int position) {
// return values.get(position);
// }
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
try {
if (convertView == null) {
// This a new view we inflate the new layout
LayoutInflater inflater = (LayoutInflater) context
.getApplicationContext().getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.spinner_item_reg,
parent, false);
}
AutoCompleteItems spTemp = values.get(position);
TextView autocompleteItem = (TextView) convertView
.findViewById(R.id.regSpinnerTextview);
convertView.setTag(spTemp.getId());
autocompleteItem.setText(spTemp.getName().toString());
autocompleteItem.setBackgroundColor(Color.CYAN);
} catch (NullPointerException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return convertView;
}
@Override
public Filter getFilter() {
return null;
}
}
我的rowitem如下
public class AutoCompleteItems {
private String _id;
private String _name;
public AutoCompleteItems(String _id, String _name) {
this._id = _id;
this._name = _name;
}
public String getId() {
return this._id;
}
public void setId(String id) {
this._id = id;
}
public String getName() {
return this._name;
}
public void setName(String name) {
this._name = name;
}
}
我的AyncTask如下
private class AsyncTaskAdvanceSearchRecommendationFragment extends AsyncTask<String, Void, Void> {
//All operations of getting data
//Data object received in variable responseString
..............................
.............................
..............................
protected void onPostExecute(Void result) {
if (progress.isShowing()) {
progress.dismiss();
}
if (!responseString.equals("")) {
AutoCompleteItems nameObj;
JSONArray JsonArray;
try {
JSONObject Jsonobject1 = new JSONObject(responseString);
String status_message = Jsonobject1.getString("status_message");
if (status_message.equals("Passed")) {
String data = Jsonobject1.getString("data");
// ApplicationStaticMethods.toastDebug(getActivity(),data);
JsonArray = new JSONArray(data);
for (int i = 0; i < JsonArray.length(); i++) {
JSONObject Jsonobject = JsonArray.getJSONObject(i);
if (webFlag == "empname") {
String name = Jsonobject.getString("EMP_NAME");
nameObj = new AutoCompleteItems("", name);
ArrayEmployeeName.add(nameObj);
}
}
Adapter_Employee_Name.notifyDataSetChanged();
}
} catch (JSONException e) {
Log.e("Error", "Error: " + e.toString());
}
} else {
}
}
fragment_request_recommendations.xml的内容
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ScrollView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="20dp">
<LinearLayout
android:id="@+id/ll_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/ll_code"
android:orientation="vertical"
>
<TextView
android:id="@+id/request_recommendation_fragment_employee_name_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Employee Name" />
<aep.tejora.myconnectapp.CustomAutoCompleteTextView
android:id="@+id/request_recommendation_fragment_employee_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/request_recommendation_fragment_department_name_label"
android:hint="Type Employee Name"
android:singleLine="true" />
</LinearLayout>
</RelativeLayout>
</ScrollView>
spinner_item_reg.xml的内容
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="@+id/regSpinnerTextview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp"
android:text="Item"
android:textColor="#808080"
android:textSize="16sp" />
</RelativeLayout>
CustomAutoCompleteTextView.java的内容
public class CustomAutoCompleteTextView extends AutoCompleteTextView {
public CustomAutoCompleteTextView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public CustomAutoCompleteTextView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}
public CustomAutoCompleteTextView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}
// this is how to disable AutoCompleteTextView filter
@Override
protected void performFiltering(final CharSequence text, final int keyCode) {
String filterText = "";
super.performFiltering(filterText, keyCode);
}
}
我的问题是一切似乎工作正常。当我使用调试模式查看变量时，每个变量都按需要设置，我从AsyncTask获取正确的数据。但是当我在自动完成中输入一些值时，它并没有。提出任何建议。 请告诉我我哪里出错了，如果可能的话，请提供我纠正的代码