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      1 /*
      2  * Copyright (C) 2014 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.example.android.apprestrictionenforcer;
     18 
     19 import android.app.admin.DevicePolicyManager;
     20 import android.content.Context;
     21 import android.content.pm.ApplicationInfo;
     22 import android.content.pm.PackageManager;
     23 import android.os.Build;
     24 import android.os.Bundle;
     25 import android.support.v4.app.FragmentActivity;
     26 
     27 public class MainActivity extends FragmentActivity implements StatusFragment.StatusUpdatedListener {
     28 
     29     @Override
     30     protected void onCreate(Bundle savedInstanceState) {
     31         super.onCreate(savedInstanceState);
     32         setContentView(R.layout.activity_main_real);
     33         if (null == savedInstanceState) {
     34             DevicePolicyManager devicePolicyManager =
     35                     (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
     36             PackageManager packageManager = getPackageManager();
     37             if (!devicePolicyManager.isProfileOwnerApp(getApplicationContext().getPackageName())) {
     38                 // If the managed profile is not yet set up, we show the setup screen.
     39                 showSetupProfile();
     40             } else {
     41                 try {
     42                     int packageFlags;
     43                     if (Build.VERSION.SDK_INT < 24) {
     44                         //noinspection deprecation
     45                         packageFlags = PackageManager.GET_UNINSTALLED_PACKAGES;
     46                     } else {
     47                         packageFlags = PackageManager.MATCH_UNINSTALLED_PACKAGES;
     48                     }
     49                     ApplicationInfo info = packageManager.getApplicationInfo(
     50                             Constants.PACKAGE_NAME_APP_RESTRICTION_SCHEMA,
     51                             packageFlags);
     52                     if (0 == (info.flags & ApplicationInfo.FLAG_INSTALLED)) {
     53                         // Need to reinstall the sample app
     54                         showStatusProfile();
     55                     } else if (devicePolicyManager.isApplicationHidden(
     56                             EnforcerDeviceAdminReceiver.getComponentName(this),
     57                             Constants.PACKAGE_NAME_APP_RESTRICTION_SCHEMA)) {
     58                         // The app is installed but hidden in this profile
     59                         showStatusProfile();
     60                     } else {
     61                         // Everything is clear; show the main screen
     62                         showMainFragment();
     63                     }
     64                 } catch (PackageManager.NameNotFoundException e) {
     65                     showStatusProfile();
     66                 }
     67             }
     68         }
     69     }
     70 
     71     private void showSetupProfile() {
     72         getSupportFragmentManager().beginTransaction()
     73                 .replace(R.id.container, SetupProfileFragment.newInstance())
     74                 .commit();
     75     }
     76 
     77     private void showStatusProfile() {
     78         getSupportFragmentManager().beginTransaction()
     79                 .replace(R.id.container, new StatusFragment())
     80                 .commit();
     81     }
     82 
     83     private void showMainFragment() {
     84         getSupportFragmentManager().beginTransaction()
     85                 .replace(R.id.container, new AppRestrictionEnforcerFragment())
     86                 .commit();
     87     }
     88 
     89     @Override
     90     public void onStatusUpdated() {
     91         showMainFragment();
     92     }
     93 
     94 }
     95