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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.tv.util;
     18 
     19 import android.app.SearchManager;
     20 import android.content.Context;
     21 import android.os.Build;
     22 import android.os.Bundle;
     23 import android.os.UserHandle;
     24 import android.util.Log;
     25 
     26 import java.lang.reflect.InvocationTargetException;
     27 
     28 /**
     29  * A convenience class for calling methods in android.app.SearchManager.
     30  */
     31 public final class SearchManagerHelper {
     32     private static final String TAG = "SearchManagerHelper";
     33 
     34     private static final Object sLock = new Object();
     35     private static SearchManagerHelper sInstance;
     36 
     37     private final SearchManager mSearchManager;
     38 
     39     private SearchManagerHelper(Context context) {
     40         mSearchManager = ((android.app.SearchManager) context.getSystemService(
     41                 Context.SEARCH_SERVICE));
     42     }
     43 
     44     public static SearchManagerHelper getInstance(Context context) {
     45         synchronized (sLock) {
     46             if (sInstance == null) {
     47                 sInstance = new SearchManagerHelper(context.getApplicationContext());
     48             }
     49             return sInstance;
     50         }
     51     }
     52 
     53     public void launchAssistAction() {
     54         try {
     55             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
     56                 SearchManager.class.getDeclaredMethod(
     57                         "launchLegacyAssist", String.class, Integer.TYPE, Bundle.class).invoke(
     58                                 mSearchManager, null, UserHandle.myUserId(), null);
     59             } else {
     60                 SearchManager.class.getDeclaredMethod(
     61                         "launchAssistAction", Integer.TYPE, String.class, Integer.TYPE).invoke(
     62                                 mSearchManager, 0, null, UserHandle.myUserId());
     63             }
     64         }  catch (NoSuchMethodException | IllegalArgumentException | IllegalAccessException
     65                 | InvocationTargetException e) {
     66             Log.e(TAG, "Fail to call SearchManager.launchAssistAction", e);
     67         }
     68     }
     69 }
     70