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      1 /*
      2  * Copyright (C) 2017 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.settings.applications;
     18 
     19 import android.content.Context;
     20 import android.content.Intent;
     21 import android.content.pm.ResolveInfo;
     22 import android.util.Log;
     23 
     24 // This class provides methods that help dealing with app stores.
     25 public class AppStoreUtil {
     26     private static final String LOG_TAG = "AppStoreUtil";
     27 
     28     private static Intent resolveIntent(Context context, Intent i) {
     29         ResolveInfo result = context.getPackageManager().resolveActivity(i, 0);
     30         return result != null ? new Intent(i.getAction())
     31                 .setClassName(result.activityInfo.packageName, result.activityInfo.name) : null;
     32     }
     33 
     34     // Returns the package name of the app which installed a given packageName, if one is
     35     // available.
     36     public static String getInstallerPackageName(Context context, String packageName) {
     37         String installerPackageName = null;
     38         try {
     39             installerPackageName =
     40                     context.getPackageManager().getInstallerPackageName(packageName);
     41         } catch (IllegalArgumentException e) {
     42             Log.e(LOG_TAG, "Exception while retrieving the package installer of " + packageName, e);
     43         }
     44         return installerPackageName;
     45     }
     46 
     47     // Returns a link to the installer app store for a given package name.
     48     public static Intent getAppStoreLink(Context context, String installerPackageName,
     49             String packageName) {
     50         Intent intent = new Intent(Intent.ACTION_SHOW_APP_INFO)
     51                 .setPackage(installerPackageName);
     52         final Intent result = resolveIntent(context, intent);
     53         if (result != null) {
     54             result.putExtra(Intent.EXTRA_PACKAGE_NAME, packageName);
     55             return result;
     56         }
     57         return null;
     58     }
     59 
     60     // Convenience method that looks up the installerPackageName for you.
     61     public static Intent getAppStoreLink(Context context, String packageName) {
     62       String installerPackageName = getInstallerPackageName(context, packageName);
     63       return getAppStoreLink(context, installerPackageName, packageName);
     64     }
     65 }
     66