1 /* 2 * Copyright (C) 2010 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 android.content.Context; 20 import android.nfc.NfcAdapter; 21 import android.provider.Settings; 22 23 import androidx.annotation.VisibleForTesting; 24 25 import com.android.settingslib.widget.MainSwitchPreference; 26 27 /** 28 * NfcEnabler is a helper to manage the Nfc on/off checkbox preference. It turns on/off Nfc 29 * and ensures the summary of the preference reflects the current state. 30 */ 31 public class NfcEnabler extends BaseNfcEnabler { 32 private final MainSwitchPreference mPreference; 33 NfcEnabler(Context context, MainSwitchPreference preference)34 public NfcEnabler(Context context, MainSwitchPreference preference) { 35 super(context); 36 mPreference = preference; 37 } 38 39 @Override handleNfcStateChanged(int newState)40 protected void handleNfcStateChanged(int newState) { 41 switch (newState) { 42 case NfcAdapter.STATE_OFF: 43 mPreference.updateStatus(false); 44 mPreference.setEnabled(isToggleable()); 45 break; 46 case NfcAdapter.STATE_ON: 47 mPreference.updateStatus(true); 48 mPreference.setEnabled(true); 49 break; 50 case NfcAdapter.STATE_TURNING_ON: 51 mPreference.updateStatus(true); 52 mPreference.setEnabled(false); 53 break; 54 case NfcAdapter.STATE_TURNING_OFF: 55 mPreference.updateStatus(false); 56 mPreference.setEnabled(false); 57 break; 58 } 59 } 60 61 @VisibleForTesting isToggleable()62 boolean isToggleable() { 63 if (NfcPreferenceController.isToggleableInAirplaneMode(mContext) 64 || !NfcPreferenceController.shouldTurnOffNFCInAirplaneMode(mContext)) { 65 return true; 66 } 67 final int airplaneMode = Settings.Global.getInt( 68 mContext.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 0); 69 return airplaneMode != 1; 70 } 71 } 72