1 /* 2 * Copyright (C) 2019 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 import androidx.preference.SwitchPreference; 25 26 import com.android.settings.R; 27 28 /** 29 * SecureNfcEnabler is a helper to manage the Secure Nfc on/off checkbox preference 30 * It turns on/off Secure NFC and ensures the summary of the preference reflects 31 * the current state. 32 */ 33 public class SecureNfcEnabler extends BaseNfcEnabler { 34 private final SwitchPreference mPreference; 35 SecureNfcEnabler(Context context, SwitchPreference preference)36 public SecureNfcEnabler(Context context, SwitchPreference preference) { 37 super(context); 38 mPreference = preference; 39 } 40 41 @Override handleNfcStateChanged(int newState)42 protected void handleNfcStateChanged(int newState) { 43 switch (newState) { 44 case NfcAdapter.STATE_OFF: 45 mPreference.setSummary(R.string.nfc_disabled_summary); 46 mPreference.setEnabled(false); 47 break; 48 case NfcAdapter.STATE_ON: 49 mPreference.setSummary(R.string.nfc_secure_toggle_summary); 50 mPreference.setChecked(mPreference.isChecked()); 51 mPreference.setEnabled(true); 52 break; 53 case NfcAdapter.STATE_TURNING_ON: 54 mPreference.setEnabled(false); 55 break; 56 case NfcAdapter.STATE_TURNING_OFF: 57 mPreference.setEnabled(false); 58 break; 59 } 60 } 61 } 62