1 /* 2 * Copyright (C) 2013 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.apprestrictions; 18 19 import android.app.Activity; 20 import android.content.Context; 21 import android.content.SharedPreferences; 22 import android.os.Bundle; 23 import android.os.UserManager; 24 import android.preference.PreferenceManager; 25 import android.view.View; 26 import android.widget.CheckBox; 27 import android.widget.TextView; 28 29 /** 30 * This is the main user interface of the App Restrictions sample app. It demonstrates the use 31 * of the App Restriction feature, which is available on Android 4.3 and above tablet devices 32 * with the multiuser feature. 33 * 34 * When launched under the primary User account, you can toggle between standard app restriction 35 * types and custom. When launched under a restricted profile, this activity displays app 36 * restriction settings, if available. 37 * 38 * Follow these steps to exercise the feature: 39 * 1. If this is the primary user, go to Settings > Users. 40 * 2. Create a restricted profile, if one doesn't exist already. 41 * 3. Open the profile settings, locate the sample app, and tap the app restriction settings 42 * icon. Configure app restrictions for the app. 43 * 4. In the lock screen, switch to the user's restricted profile, launch this sample app, 44 * and see the configured app restrictions displayed. 45 */ 46 public class MainActivity extends Activity { 47 private Bundle mRestrictionsBundle; 48 49 // Checkbox to indicate whether custom or standard app restriction types are selected. 50 private CheckBox mCustomConfig; 51 52 public static final String CUSTOM_CONFIG_KEY = "custom_config"; 53 54 private TextView mMultiEntryValue; 55 private TextView mChoiceEntryValue; 56 private TextView mBooleanEntryValue; 57 58 @Override onCreate(Bundle savedInstanceState)59 protected void onCreate(Bundle savedInstanceState) { 60 super.onCreate(savedInstanceState); 61 62 // Sets up user interface elements. 63 setContentView(R.layout.main); 64 65 mCustomConfig = (CheckBox) findViewById(R.id.custom_app_limits); 66 final boolean customChecked = 67 PreferenceManager.getDefaultSharedPreferences(this).getBoolean( 68 CUSTOM_CONFIG_KEY, false); 69 if (customChecked) mCustomConfig.setChecked(true); 70 71 mMultiEntryValue = (TextView) findViewById(R.id.multi_entry_id); 72 mChoiceEntryValue = (TextView) findViewById(R.id.choice_entry_id); 73 mBooleanEntryValue = (TextView) findViewById(R.id.boolean_entry_id); 74 } 75 76 @Override onResume()77 protected void onResume() { 78 super.onResume(); 79 80 // If app restrictions are set for this package, when launched from a restricted profile, 81 // the settings are available in the returned Bundle as key/value pairs. 82 mRestrictionsBundle = 83 ((UserManager) getSystemService(Context.USER_SERVICE)) 84 .getApplicationRestrictions(getPackageName()); 85 if (mRestrictionsBundle == null) { 86 mRestrictionsBundle = new Bundle(); 87 } 88 89 // Reads and displays values from a boolean type restriction entry, if available. 90 // An app can utilize these settings to restrict its content under a restricted profile. 91 final String booleanRestrictionValue = 92 mRestrictionsBundle.containsKey(GetRestrictionsReceiver.KEY_BOOLEAN) ? 93 mRestrictionsBundle.getBoolean(GetRestrictionsReceiver.KEY_BOOLEAN) + "": 94 getString(R.string.na); 95 mBooleanEntryValue.setText(booleanRestrictionValue); 96 97 // Reads and displays values from a single choice restriction entry, if available. 98 final String singleChoiceRestrictionValue = 99 mRestrictionsBundle.containsKey(GetRestrictionsReceiver.KEY_CHOICE) ? 100 mRestrictionsBundle.getString(GetRestrictionsReceiver.KEY_CHOICE) : 101 getString(R.string.na); 102 mChoiceEntryValue.setText(singleChoiceRestrictionValue); 103 104 // Reads and displays values from a multi-select restriction entry, if available. 105 final String[] multiSelectValues = 106 mRestrictionsBundle.getStringArray(GetRestrictionsReceiver.KEY_MULTI_SELECT); 107 if (multiSelectValues == null || multiSelectValues.length == 0) { 108 mMultiEntryValue.setText(getString(R.string.na)); 109 } else { 110 String tempValue = ""; 111 for (String value : multiSelectValues) { 112 tempValue = tempValue + value + " "; 113 } 114 mMultiEntryValue.setText(tempValue); 115 } 116 } 117 118 /** 119 * Saves custom app restriction to the shared preference. 120 * 121 * This flag is used by {@code GetRestrictionsReceiver} to determine if a custom app 122 * restriction activity should be used. 123 * 124 * @param view 125 */ onCustomClicked(View view)126 public void onCustomClicked(View view) { 127 final SharedPreferences.Editor editor = 128 PreferenceManager.getDefaultSharedPreferences(this).edit(); 129 editor.putBoolean(CUSTOM_CONFIG_KEY, mCustomConfig.isChecked()).commit(); 130 } 131 } 132