关于android：将AutoCompleteTextView改为ActionBar中的SearchView

田田 • 2022年8月7日 pm6:09 • 问答 • 116 阅读

Turn AutoCompleteTextView into a SearchView in ActionBar instead

我有一个 AutoCompleteTextView，它为用户提供来自 Google Places API 的自动完成搜索结果。完成后，我发现了 SearchView 以及如何将其放置在 ActionBar 中。我查看了 google 提供的 SearchView 示例，并将其作为起点添加到我的应用程序中(它列出了已安装的应用程序)，但我不知道如何从这里开始。我想拥有与 AutoCompleteTextView 相同的功能，但改用 SearchView。
有什么建议吗？
下面提供了整个课程。

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.app.SearchManager;
import android.app.SearchableInfo;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.preference.PreferenceManager;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;

/**
*
* @author
*
*/
public class PlacesListSearchActivity extends Activity implements SearchView.OnQueryTextListener{

private static final String TAG ="PlacesListActivity";

private ResultReceiver mReceiver;

private OnSharedPreferenceChangeListener sharedPreferencesListener;
private SharedPreferences sharedPreferences;

/** Called when the activity is first created. */
public ArrayAdapter<String> adapter;
public AutoCompleteTextView textView;

private SearchView mSearchView;
private TextView mStatusView;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
setContentView(R.layout.places_search);
mStatusView = (TextView) findViewById(R.id.status_text);

final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.item_list);
textView = (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
adapter.setNotifyOnChange(true);
textView.setHint("type store name");
textView.setAdapter(adapter);
textView.addTextChangedListener(new TextWatcher() {

public void onTextChanged(CharSequence s, int start, int before, int count) {
if (count%3 == 1) {
adapter.clear();
GetPlaces task = new GetPlaces();
//now pass the argument in the textview to the task
task.execute(textView.getText().toString());
}
}

public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub

}

public void afterTextChanged(Editable s) {

}

});
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);

MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.searchview_in_menu, menu);
MenuItem searchItem = menu.findItem(R.id.action_search);
mSearchView = (SearchView) searchItem.getActionView();
setupSearchView(searchItem);

return true;
}

private void setupSearchView(MenuItem searchItem) {

if (isAlwaysExpanded()) {
mSearchView.setIconifiedByDefault(false);
} else {
searchItem.setShowAsActionFlags(MenuItem.SHOW_AS_ACTION_IF_ROOM
| MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW);
}

SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
if (searchManager != null) {
List<SearchableInfo> searchables = searchManager.getSearchablesInGlobalSearch();

// Try to use the"applications" global search provider
SearchableInfo info = searchManager.getSearchableInfo(getComponentName());
for (SearchableInfo inf : searchables) {
if (inf.getSuggestAuthority() != null
&& inf.getSuggestAuthority().startsWith("applications")) {
info = inf;
}
}
mSearchView.setSearchableInfo(info);
}

mSearchView.setOnQueryTextListener(this);
}

public boolean onQueryTextChange(String newText) {
mStatusView.setText("Query =" + newText);
return false;
}

public boolean onQueryTextSubmit(String query) {
mStatusView.setText("Query =" + query +" : submitted");
return false;
}

public boolean onClose() {
mStatusView.setText("Closed!");
return false;
}

protected boolean isAlwaysExpanded() {
return false;
}

class GetPlaces extends AsyncTask<String, Void, ArrayList<String>> {
@Override
// three dots is java for an array of strings
protected ArrayList<String> doInBackground(String... args)
{
Log.d("PlacesListActivity","doInBackground");
ArrayList<String> predictionsArr = new ArrayList<String>();
try
{
URL googlePlaces = new URL(
"https://maps.googleapis.com/maps/api/place/autocomplete/json?input=" +
URLEncoder.encode(args[0],"UTF-8") +
// "&types=geocode&language=en&sensor=true&key=" + SEARCHES FOR GEO CODES
"&types=establishment&language=en&sensor=true&key=" +
getResources().getString(R.string.googleAPIKey));

Log.d("PlacesListActivity", googlePlaces.toString());

URLConnection tc = googlePlaces.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(
tc.getInputStream()));

String line;
StringBuffer sb = new StringBuffer();
//take Google's legible JSON and turn it into one big string.
while ((line = in.readLine()) != null) {
sb.append(line);
}
//turn that string into a JSON object
JSONObject predictions = new JSONObject(sb.toString());
//now get the JSON array that's inside that object
JSONArray ja = new JSONArray(predictions.getString("predictions"));

for (int i = 0; i < ja.length(); i++) {
JSONObject jo = (JSONObject) ja.get(i);
//add each entry to our array
predictionsArr.add(jo.getString("description"));
}
} catch (IOException e)
{
Log.e("PlacesListActivity","GetPlaces : doInBackground", e);
} catch (JSONException e)
{
Log.e("PlacesListActivity","GetPlaces : doInBackground", e);
}

return predictionsArr;
}

@Override
protected void onPostExecute(ArrayList<String> result){
Log.d("PlacesListActivity","onPostExecute :" + result.size());
//update the adapter
adapter = new ArrayAdapter<String>(getBaseContext(), R.layout.item_list);
adapter.setNotifyOnChange(true);
//attach the adapter to textview
textView.setAdapter(adapter);

for (String string : result) {
Log.d("PlacesListActivity","onPostExecute : result =" + string);
adapter.add(string);
adapter.notifyDataSetChanged();
}

Log.d("PlacesListActivity","onPostExecute : autoCompleteAdapter" + adapter.getCount());
}

}

}

更新saxman建议的代码后，我可以看到provider中的查询方法从来没有被调用过：

我的清单文件如下所示：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.rathinavelu.rea"
android:versionCode="1"
android:versionName="1.0">

<uses-sdk
android:minSdkVersion="7"
android:targetSdkVersion="15" />

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name">

<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:screenOrientation="portrait">
<intent-filter>

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

</activity>

<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" />
</activity>

</activity>

</activity>

</activity>

<uses-library android:name="com.google.android.maps" />

<service
android:name=".places.PlacesRESTService"
android:enabled="true"
android:exported="false">
<intent-filter>

</intent-filter>
</service>

<provider
android:name=".places.PlacesSuggestionProvider"
android:authorities="com.rathinavelu.rea.places.search_suggestion_provider"
android:syncable="false" />

</application>

</manifest>

我在清单、内容提供者和清单文件中使用相同的权限。我在菜单中看到了 searchView 并且我没有修改查询方法，所以它应该只返回一行光标。但查询方法永远不会被调用。请帮忙。
我刚刚发现的另一个问题是 searchView 没有显示指定的 search_hint！

提供更多代码
*PlacesListSearchActivity.java*

public class PlacesListSearchActivity extends Activity {

private static final String TAG ="PlacesListSearchActivity";

private ResultReceiver mReceiver;

private OnSharedPreferenceChangeListener sharedPreferencesListener;
private SharedPreferences sharedPreferences;

/** Called when the activity is first created. */
public ArrayAdapter<String> adapter;
public AutoCompleteTextView textView;

private SearchView mSearchView;
private TextView mStatusView;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
setContentView(R.layout.places_search);
mStatusView = (TextView) findViewById(R.id.status_text);

final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.item_list);
textView = (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
adapter.setNotifyOnChange(true);
textView.setHint("type store name");
textView.setAdapter(adapter);
textView.addTextChangedListener(new TextWatcher() {

public void onTextChanged(CharSequence s, int start, int before, int count) {
if (count%3 == 1) {
adapter.clear();
GetPlaces task = new GetPlaces();
//now pass the argument in the textview to the task
task.execute(textView.getText().toString());
}
}

public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub

}

public void afterTextChanged(Editable s) {

}

});
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// super.onCreateOptionsMenu(menu);
// Inflate the options menu from XML
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.places_list_search_options_menu, menu);

SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) menu.findItem(R.id.menu_search).getActionView();
// Tells your app's SearchView to use this activity's searchable configuration
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default

// setupSearchView(searchItem);

return true;
}

places_search.xml

<?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"
android:background="#dddddd">

<AutoCompleteTextView android:id="@+id/autoCompleteTextView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp">
<requestFocus></requestFocus>
</AutoCompleteTextView>

<TextView
android:id="@+id/status_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"/>
</RelativeLayout>

places_list_search_options_menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/menu_search"
android:title="@string/menu_search"
android:icon="@android:drawable/ic_menu_search"
android:showAsAction="collapseActionView|ifRoom"
android:actionViewClass="android.widget.SearchView" />
</menu>

可搜索的.xml

<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:hint="@string/search_hint"
android:searchSuggestAuthority="com.rathinavelu.rea.places.search_suggestion_provider">
</searchable>

PlacesSuggestionProvider.java

public class PlacesSuggestionProvider extends ContentProvider {
private static final String LOG_TAG ="PlacesSuggestionProvider";

public static final String AUTHORITY ="com.rathinavelu.rea.places.search_suggestion_provider";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +"/search");

// UriMatcher constant for search suggestions
private static final int SEARCH_SUGGEST = 1;

private static final UriMatcher uriMatcher;

private static final String[] SEARCH_SUGGEST_COLUMNS = {
BaseColumns._ID,
SearchManager.SUGGEST_COLUMN_TEXT_1,
SearchManager.SUGGEST_COLUMN_TEXT_2,
SearchManager.SUGGEST_COLUMN_INTENT_DATA_ID
};

static {
uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
uriMatcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, SEARCH_SUGGEST);
uriMatcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY +"/*", SEARCH_SUGGEST);
}

@Override
public int delete(Uri uri, String arg1, String[] arg2) {
throw new UnsupportedOperationException();
}

@Override
public String getType(Uri uri) {
switch (uriMatcher.match(uri)) {
case SEARCH_SUGGEST:
return SearchManager.SUGGEST_MIME_TYPE;
default:
throw new IllegalArgumentException("Unknown URL" + uri);
}
}

@Override
public Uri insert(Uri uri, ContentValues arg1) {
throw new UnsupportedOperationException();
}

@Override
public boolean onCreate() {
return true;
}

@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
Log.d(LOG_TAG,"query =" + uri);

// Use the UriMatcher to see what kind of query we have
switch (uriMatcher.match(uri)) {
case SEARCH_SUGGEST:
Log.d(LOG_TAG,"Search suggestions requested.");
MatrixCursor cursor = new MatrixCursor(SEARCH_SUGGEST_COLUMNS, 1);
cursor.addRow(new String[] {
"1","Search Result","Search Result Description","content_id"
});
return cursor;
default:
throw new IllegalArgumentException("Unknown Uri:" + uri);
}
}

@Override
public int update(Uri uri, ContentValues arg1, String arg2, String[] arg3) {
throw new UnsupportedOperationException();
}
}

相关讨论

嗨，只是想知道，在操作栏中使用 SearchView 而不是 AutoCompleteTextView 搜索功能有什么优势吗？
为未来的访问者提供了极好的链接； drzon.net/…

要在 SearchView 中获取 Places Autocomplete API 结果，您首先需要 API 的 ContentProvider。

import android.app.SearchManager;
import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;
import android.provider.BaseColumns;
import android.util.Log;

public class PlacesSuggestionProvider extends ContentProvider {
private static final String LOG_TAG ="ExampleApp";

public static final String AUTHORITY ="com.example.google.places.search_suggestion_provider";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY +"/search");

// UriMatcher constant for search suggestions
private static final int SEARCH_SUGGEST = 1;

private static final UriMatcher uriMatcher;

private static final String[] SEARCH_SUGGEST_COLUMNS = {
BaseColumns._ID,
SearchManager.SUGGEST_COLUMN_TEXT_1,
SearchManager.SUGGEST_COLUMN_TEXT_2,
SearchManager.SUGGEST_COLUMN_INTENT_DATA_ID
};

static {
uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
uriMatcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, SEARCH_SUGGEST);
uriMatcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY +"/*", SEARCH_SUGGEST);
}

@Override
public int delete(Uri uri, String arg1, String[] arg2) {
throw new UnsupportedOperationException();
}

@Override
public String getType(Uri uri) {
switch (uriMatcher.match(uri)) {
case SEARCH_SUGGEST:
return SearchManager.SUGGEST_MIME_TYPE;
default:
throw new IllegalArgumentException("Unknown URL" + uri);
}
}

@Override
public Uri insert(Uri uri, ContentValues arg1) {
throw new UnsupportedOperationException();
}

@Override
public boolean onCreate() {
return true;
}

@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
Log.d(LOG_TAG,"query =" + uri);

// Use the UriMatcher to see what kind of query we have
switch (uriMatcher.match(uri)) {
case SEARCH_SUGGEST:
Log.d(LOG_TAG,"Search suggestions requested.");
MatrixCursor cursor = new MatrixCursor(SEARCH_SUGGEST_COLUMNS, 1);
cursor.addRow(new String[] {
"1","Search Result","Search Result Description","content_id"
});
return cursor;
default:
throw new IllegalArgumentException("Unknown Uri:" + uri);
}
}

@Override
public int update(Uri uri, ContentValues arg1, String arg2, String[] arg3) {
throw new UnsupportedOperationException();
}
}

然后将您的 Places Autocomplete API 客户端代码添加到内容提供程序的查询方法中。您提取用户输入如下：

String query = uri.getLastPathSegment().toLowerCase();

将 PlacesSuggestionProvider 添加到您的 AndroidManifest，并确保您的活动具有可搜索的配置。

并确保您的可搜索配置 (res/xml/searchable.xml) 具有搜索建议权限。

<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:hint="@string/search_hint"
android:searchSuggestAuthority="com.example.google.places.search_suggestion_provider">
</searchable>

AndroidManifest.xml、searchable.xml 和你的内容提供者中的权限应该相同。

为包含 SearchView (/res/menu/options_menu.xml) 的 ActionBar 创建一个选项菜单。

使用与您的可搜索配置相关联的 SearchView 配置您的 Activity/

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the options menu from XML
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.options_menu, menu);

SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) menu.findItem(R.id.menu_search).getActionView();
// Tells your app's SearchView to use this activity's searchable configuration
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default

return true;
}

几个关键文档是：

添加自定义建议：
http://developer.android.com/guide/topics/search/adding-custom-suggestions.html

创建内容提供者：
http://developer.android.com/guide/topics/providers/content-provider-creating.html

使用搜索小部件：
http://developer.android.com/guide/topics/search/search-dialog.html#UsingSearchWidget

相关讨论

谢谢回复。所以内容提供者将在 Google Places 上进行查找并返回一个光标！但是我还是不知道searchView是怎么连接的？
也添加了该代码(最后 2 个代码块)。在 onCreateOptionsMenu 中，您将 SearchView 配置为使用您为活动定义的可搜索配置。
听起来您可能错过了最后一部分：将您的可搜索配置与 SearchView 相关联。请同时发布您的其他文件(searchable.xml、PlacesListSearchActivity、PlaceSuggestionProvider 以及您用于选项菜单的任何文件)。
我已经添加了几乎所有的课程。可搜索的.xml

带有谷歌搜索 API 的 AutoCompleteTextView

你的xml

你的java代码

this.inputBox = (AutoCompleteTextView) findViewById(R.id.main_omnibox_input);
inputBox.setAdapter(new SearchAutocompleteAdapter(SearchActivity.this, new SearchAutocompleteAdapter.OnSearchCommitListener() {
@Override
public void onSearchCommit(String text) {
inputBox.setText(text);
inputBox.setSelection(text.length());
}
}));

this.inputBox.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView< ? > adapterView, View view, int i, long j) {
String charSequence = ((TextView) view.findViewById(android.R.id.text1)).getText().toString();
inputBox.setText(Html.fromHtml(BrowserUnit.urlWrapper(charSequence)), BufferType.SPANNABLE);
inputBox.setSelection(charSequence.length());
// your code
// updateAlbum(charSequence);
// hideSoftInput(SearchActivity.this.inputBox);
}
});

搜索自动完成适配器

public class SearchAutocompleteAdapter extends BaseAdapter implements Filterable {

interface OnSearchCommitListener {
void onSearchCommit(String text);
}

private final Context mContext;
private final OnSearchCommitListener commitListener;
private List<String> completions = new ArrayList<>();
static final String searchCompleteUrl ="https://www.google.com/complete/search?client=firefox&q=%s";

SearchAutocompleteAdapter(Context context, OnSearchCommitListener commitListener) {
mContext = context;
this.commitListener = commitListener;
}

@Override
public int getCount() {
return completions.size();
}

@Override
public Object getItem(int position) {
return completions.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

@SuppressLint("ClickableViewAccessibility")
@Override
@SuppressWarnings("ConstantConditions")
public View getView(final int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(android.R.layout.simple_dropdown_item_1line, parent, false);
}
TextView textview = convertView.findViewById(android.R.id.text1);
textview.setText(completions.get(position));
Drawable d = ContextCompat.getDrawable(mContext, R.drawable.icon_goarrowsmall);
final int size = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 32, mContext.getResources().getDisplayMetrics());
d.setBounds(0, 0, size, size);
textview.setCompoundDrawables(null, null, d, null);

textview.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent event) {
if (event.getAction() != MotionEvent.ACTION_DOWN) {
return false;
}
TextView t = (TextView) view;
if (event.getX() > t.getWidth() - t.getCompoundPaddingRight()) {
commitListener.onSearchCommit(getItem(position).toString());
return true;
}
return false;
}
});
parent.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent event) {
if (event.getX() > view.getWidth() - size * 2) {
return true;
}
return false;
}
});
return convertView;
}

@Override
public Filter getFilter() {
return new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
// Invoked on a worker thread
FilterResults filterResults = new FilterResults();
if (constraint != null) {
List<String> results = getCompletions(constraint.toString());
filterResults.values = results;
filterResults.count = results.size();
}
return filterResults;
}

@Override
@SuppressWarnings("unchecked")
protected void publishResults(CharSequence constraint, FilterResults results) {
if (results != null && results.count > 0) {
completions = (List<String>) results.values;
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}
};
}

private List<String> getCompletions(String text) {
int total = 0;
byte[] data = new byte[16384];
try {
URL url = new URL(URLUtil.composeSearchUrl(text, searchCompleteUrl,"%s"));
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
try {
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
while (total <= data.length) {
int count = in.read(data, total, data.length - total);
if (count == -1) {
break;
}
total += count;
}
if (total == data.length) {
// overflow
return new ArrayList<>();
}
} finally {
urlConnection.disconnect();
}
} catch (IOException e) {
return new ArrayList<>();
}

JSONArray jsonArray;
try {
jsonArray = new JSONArray(new String(data, StandardCharsets.UTF_8));
} catch (JSONException e) {
return new ArrayList<>();
}
jsonArray = jsonArray.optJSONArray(1);
if (jsonArray == null) {
return new ArrayList<>();
}
final int MAX_RESULTS = 10;
List<String> result = new ArrayList<>(Math.min(jsonArray.length(), MAX_RESULTS));
for (int i = 0; i < jsonArray.length() && result.size() < MAX_RESULTS; i++) {
String s = jsonArray.optString(i);
if (s != null && !s.isEmpty()) {
result.add(s);
}
}
return result;
}

}

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Turn AutoCompleteTextView into a SearchView in ActionBar instead

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