1 /* 2 * Copyright (C) 2011 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.nfc; 18 19 import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin; 20 21 import android.app.settings.SettingsEnums; 22 import android.content.Context; 23 import android.content.pm.PackageManager; 24 import android.nfc.NfcAdapter; 25 import android.os.Bundle; 26 import android.os.UserHandle; 27 import android.os.UserManager; 28 import android.view.LayoutInflater; 29 import android.view.Menu; 30 import android.view.MenuInflater; 31 import android.view.View; 32 import android.view.ViewGroup; 33 import android.widget.ImageView; 34 import android.widget.Switch; 35 import android.widget.TextView; 36 37 import com.android.settings.R; 38 import com.android.settings.SettingsActivity; 39 import com.android.settings.core.InstrumentedFragment; 40 import com.android.settings.enterprise.ActionDisabledByAdminDialogHelper; 41 import com.android.settings.widget.SettingsMainSwitchBar; 42 import com.android.settingslib.HelpUtils; 43 import com.android.settingslib.RestrictedLockUtilsInternal; 44 import com.android.settingslib.widget.OnMainSwitchChangeListener; 45 46 public class AndroidBeam extends InstrumentedFragment 47 implements OnMainSwitchChangeListener { 48 private View mView; 49 private NfcAdapter mNfcAdapter; 50 private SettingsMainSwitchBar mSwitchBar; 51 private CharSequence mOldActivityTitle; 52 private boolean mBeamDisallowedByBase; 53 private boolean mBeamDisallowedByOnlyAdmin; 54 55 @Override onCreate(Bundle savedInstanceState)56 public void onCreate(Bundle savedInstanceState) { 57 super.onCreate(savedInstanceState); 58 final Context context = getActivity(); 59 mNfcAdapter = NfcAdapter.getDefaultAdapter(context); 60 final PackageManager pm = context.getPackageManager(); 61 if (mNfcAdapter == null || !pm.hasSystemFeature(PackageManager.FEATURE_NFC_BEAM)) 62 getActivity().finish(); 63 setHasOptionsMenu(true); 64 } 65 66 @Override onCreateOptionsMenu(Menu menu, MenuInflater inflater)67 public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { 68 super.onCreateOptionsMenu(menu, inflater); 69 HelpUtils.prepareHelpMenuItem(getActivity(), menu, R.string.help_uri_beam, 70 getClass().getName()); 71 } 72 73 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)74 public View onCreateView(LayoutInflater inflater, ViewGroup container, 75 Bundle savedInstanceState) { 76 final EnforcedAdmin admin = RestrictedLockUtilsInternal.checkIfRestrictionEnforced( 77 getActivity(), UserManager.DISALLOW_OUTGOING_BEAM, UserHandle.myUserId()); 78 final UserManager um = UserManager.get(getActivity()); 79 mBeamDisallowedByBase = RestrictedLockUtilsInternal.hasBaseUserRestriction(getActivity(), 80 UserManager.DISALLOW_OUTGOING_BEAM, UserHandle.myUserId()); 81 if (!mBeamDisallowedByBase && admin != null) { 82 new ActionDisabledByAdminDialogHelper(getActivity()) 83 .prepareDialogBuilder(UserManager.DISALLOW_OUTGOING_BEAM, admin).show(); 84 mBeamDisallowedByOnlyAdmin = true; 85 return new View(getContext()); 86 } 87 mView = inflater.inflate(R.layout.preference_footer, container, false); 88 89 ImageView iconInfo = mView.findViewById(android.R.id.icon); 90 iconInfo.setImageResource(R.drawable.ic_info_outline_24dp); 91 TextView textInfo = mView.findViewById(android.R.id.title); 92 textInfo.setText(R.string.android_beam_explained); 93 94 return mView; 95 } 96 97 @Override onActivityCreated(Bundle savedInstanceState)98 public void onActivityCreated(Bundle savedInstanceState) { 99 super.onActivityCreated(savedInstanceState); 100 SettingsActivity activity = (SettingsActivity) getActivity(); 101 102 mOldActivityTitle = activity.getActionBar().getTitle(); 103 104 mSwitchBar = activity.getSwitchBar(); 105 if (mBeamDisallowedByOnlyAdmin) { 106 mSwitchBar.hide(); 107 } else { 108 mSwitchBar.setChecked(!mBeamDisallowedByBase && mNfcAdapter.isNdefPushEnabled()); 109 mSwitchBar.addOnSwitchChangeListener(this); 110 mSwitchBar.setEnabled(!mBeamDisallowedByBase); 111 mSwitchBar.show(); 112 } 113 114 activity.setTitle(R.string.android_beam_settings_title); 115 } 116 117 @Override onDestroyView()118 public void onDestroyView() { 119 super.onDestroyView(); 120 if (mOldActivityTitle != null) { 121 getActivity().getActionBar().setTitle(mOldActivityTitle); 122 } 123 if (!mBeamDisallowedByOnlyAdmin) { 124 mSwitchBar.removeOnSwitchChangeListener(this); 125 mSwitchBar.hide(); 126 } 127 } 128 129 @Override onSwitchChanged(Switch switchView, boolean desiredState)130 public void onSwitchChanged(Switch switchView, boolean desiredState) { 131 boolean success = false; 132 mSwitchBar.setEnabled(false); 133 if (desiredState) { 134 success = mNfcAdapter.enableNdefPush(); 135 } else { 136 success = mNfcAdapter.disableNdefPush(); 137 } 138 if (success) { 139 mSwitchBar.setChecked(desiredState); 140 } 141 mSwitchBar.setEnabled(true); 142 } 143 144 @Override getMetricsCategory()145 public int getMetricsCategory() { 146 return SettingsEnums.NFC_BEAM; 147 } 148 } 149