| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.settings.applications.specialaccess; |
| |
| import android.content.Context; |
| import android.nfc.NfcAdapter; |
| import android.nfc.cardemulation.CardEmulation; |
| |
| import androidx.preference.Preference; |
| |
| import com.android.settings.R; |
| import com.android.settings.nfc.BaseNfcEnabler; |
| |
| /** |
| * PaymentSettingsEnabler is a helper to manage the payment feature enable / disable state. |
| * It enables / disables payment features based on NFC state, and ensures the summary of the |
| * preference is updated. |
| */ |
| public class PaymentSettingsEnabler extends BaseNfcEnabler { |
| private final CardEmulation mCardEmuManager; |
| private final Preference mPreference; |
| boolean mIsPaymentAvailable; |
| |
| public PaymentSettingsEnabler(Context context, Preference preference) { |
| super(context); |
| mCardEmuManager = CardEmulation.getInstance(super.mNfcAdapter); |
| mIsPaymentAvailable = false; |
| mPreference = preference; |
| } |
| |
| @Override |
| protected void handleNfcStateChanged(int newState) { |
| switch (newState) { |
| case NfcAdapter.STATE_OFF: |
| mPreference.setSummary( |
| R.string.nfc_and_payment_settings_payment_off_nfc_off_summary); |
| mPreference.setEnabled(false); |
| break; |
| case NfcAdapter.STATE_ON: |
| if (mIsPaymentAvailable) { |
| mPreference.setSummary(null); |
| mPreference.setEnabled(true); |
| } else { |
| mPreference.setSummary( |
| R.string.nfc_and_payment_settings_no_payment_installed_summary); |
| |
| mPreference.setEnabled(false); |
| } |
| break; |
| } |
| } |
| |
| @Override |
| public void resume() { |
| if (!isNfcAvailable()) { |
| return; |
| } |
| if (mCardEmuManager.getServices(CardEmulation.CATEGORY_PAYMENT).isEmpty()) { |
| mIsPaymentAvailable = false; |
| } else { |
| mIsPaymentAvailable = true; |
| } |
| super.resume(); |
| } |
| } |