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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 
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.content.pm.ResolveInfo;
     23 import android.net.Uri;
     24 import android.util.Log;
     25 
     26 // This class provides methods that help dealing with app stores.
     27 public class AppStoreUtil {
     28     private static final String LOG_TAG = "AppStoreUtil";
     29 
     30     private static Intent resolveIntent(Context context, Intent i) {
     31         ResolveInfo result = context.getPackageManager().resolveActivity(i, 0);
     32         return result != null ? new Intent(i.getAction())
     33                 .setClassName(result.activityInfo.packageName, result.activityInfo.name) : null;
     34     }
     35 
     36     // Returns the package name of the app which installed a given packageName, if one is
     37     // available.
     38     public static String getInstallerPackageName(Context context, String packageName) {
     39         String installerPackageName = null;
     40         try {
     41             installerPackageName =
     42                     context.getPackageManager().getInstallerPackageName(packageName);
     43         } catch (IllegalArgumentException e) {
     44             Log.e(LOG_TAG, "Exception while retrieving the package installer of " + packageName, e);
     45         }
     46         if (installerPackageName == null) {
     47             return null;
     48         }
     49         return installerPackageName;
     50     }
     51 
     52     // Returns a link to the installer app store for a given package name.
     53     public static Intent getAppStoreLink(Context context, String installerPackageName,
     54             String packageName) {
     55         Intent intent = new Intent(Intent.ACTION_SHOW_APP_INFO)
     56                 .setPackage(installerPackageName);
     57         final Intent result = resolveIntent(context, intent);
     58         if (result != null) {
     59             result.putExtra(Intent.EXTRA_PACKAGE_NAME, packageName);
     60             return result;
     61         }
     62         return null;
     63     }
     64 
     65     // Convenience method that looks up the installerPackageName for you.
     66     public static Intent getAppStoreLink(Context context, String packageName) {
     67       String installerPackageName = getInstallerPackageName(context, packageName);
     68       return getAppStoreLink(context, installerPackageName, packageName);
     69     }
     70 }
     71