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代わりに、AutoCompleteTextViewをActionBarのSearchViewに変換します

AutoCompleteTextViewがあります--Google Places APIからユーザーにオートコンプリート検索結果を提供します。完了したら、SearchViewとActionBarに配置する方法を発見しました。 googleが提供するSearchViewの例をチェックアウトし、開始点としてアプリケーションに追加しました（インストールされているアプリケーションがリストされています）が、ここから先に進む方法がわかりません。 AutoCompleteTextViewと同じ機能が必要ですが、代わりにSearchViewを使用します。なにか提案を？クラス全体を以下に示します。

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());
        }

    }

}

saxmanによって提案されたコードを更新した後、プロバイダーのクエリメソッドが呼び出されないことがわかります：

私のマニフェストファイルは次のようになります。

<?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>
                <action Android:name="Android.intent.action.MAIN" />
                <category Android:name="Android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <activity Android:name=".PlacesListActivity" >
        </activity>

        <activity Android:name=".PlacesListSearchActivity" >
            <action Android:name="Android.intent.action.SEARCH" />
            <meta-data
                Android:name="Android.app.searchable"
                Android:resource="@xml/searchable" />
        </activity>

        <activity Android:name=".TestMapActivity" >
        </activity>

        <activity Android:name=".SettingsPreferencesActivity" >
        </activity>

        <activity Android:name="com.rathinavelu.util.ConnectionChecker" >
        </activity>

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

        <service
            Android:name=".places.PlacesRESTService"
            Android:enabled="true"
            Android:exported="false" >
            <intent-filter>
                <action Android:name="Android.intent.action.ACTION_SYNC" />
            </intent-filter>
        </service>

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

    </application>

</manifest>

マニフェスト、コンテンツプロバイダー、およびマニフェストファイルで同じ権限を使用します。メニューにsearchViewが表示されますが、クエリメソッドを変更していないため、1行のカーソルが返されるだけです。ただし、クエリメソッドは呼び出されません。助けてください。私が見つけた別の問題は、searchViewが指定されたsearch_hintを表示しないことです！

さらにコードを提供する *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>

searchable.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();
    }
}
androidgoogle-places-apiautocompletetextviewsearchview
27
theAlse

SearchViewでプレイスオートコンプリートAPIの結果を取得するには、最初にAPIのContentProviderが必要です。

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();
    }
}

次に、プレイスオートコンプリートAPIクライアントコードをコンテンツプロバイダーのqueryメソッドに追加します。次のようにユーザー入力を抽出します。

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

PlacesSuggestionProviderをAndroidManifestに追加し、アクティビティに検索可能な構成があることを確認します。

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

        <activity Android:name=".PlacesSearchViewActivity" >
            <intent-filter>
                <action Android:name="Android.intent.action.SEARCH" />
                <action Android:name="Android.intent.action.MAIN" />

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

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

        <provider
            Android:name="com.example.google.places.PlacesSuggestionProvider"
            Android:authorities="com.example.google.places.search_suggestion_provider"
            Android:syncable="false" />
    </application>

</manifest>

また、検索可能な構成（res/xml/searchable.xml）に検索候補権限があることを確認してください。

<?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>

権限は、AndroidManifest.xml、searchable.xml、およびコンテンツプロバイダーで同じである必要があります。

SearchView（/res/menu/options_menu.xml）を含むActionBarのオプションメニューを作成します。

<menu xmlns:Android="http://schemas.Android.com/apk/res/Android">
    <item Android:id="@+id/menu_search"
          Android:title="@string/menu_search"
          Android:icon="@drawable/ic_menu_search"
          Android:showAsAction="collapseActionView|ifRoom"
          Android:actionViewClass="Android.widget.SearchView" />
</menu>

検索可能な構成に関連付けられているSearchViewでアクティビティを構成します/

@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;
}

いくつかの重要なドキュメントは次のとおりです。

カスタム提案の追加： http://developer.Android.com/guide/topics/search/adding-custom-suggestions.html

コンテンツプロバイダーの作成： http://developer.Android.com/guide/topics/providers/content-provider-creating.html

検索ウィジェットの使用： http://developer.Android.com/guide/topics/search/search-dialog.html#UsingSearchWidget

50
saxman