| /* |
| * Copyright (C) 2013 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.nfc; |
| |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.pm.PackageManager; |
| import android.graphics.drawable.Drawable; |
| import android.nfc.NfcAdapter; |
| import android.nfc.cardemulation.ApduServiceInfo; |
| import android.nfc.cardemulation.CardEmulation; |
| import android.provider.Settings; |
| import android.provider.Settings.SettingNotFoundException; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class PaymentBackend { |
| public static final String TAG = "Settings.PaymentBackend"; |
| |
| public static class PaymentAppInfo { |
| CharSequence caption; |
| Drawable banner; |
| boolean isDefault; |
| public ComponentName componentName; |
| } |
| |
| private final Context mContext; |
| private final NfcAdapter mAdapter; |
| private final CardEmulation mCardEmuManager; |
| |
| public PaymentBackend(Context context) { |
| mContext = context; |
| |
| mAdapter = NfcAdapter.getDefaultAdapter(context); |
| mCardEmuManager = CardEmulation.getInstance(mAdapter); |
| } |
| |
| public List<PaymentAppInfo> getPaymentAppInfos() { |
| PackageManager pm = mContext.getPackageManager(); |
| List<ApduServiceInfo> serviceInfos = |
| mCardEmuManager.getServices(CardEmulation.CATEGORY_PAYMENT); |
| List<PaymentAppInfo> appInfos = new ArrayList<PaymentAppInfo>(); |
| |
| if (serviceInfos == null) return appInfos; |
| |
| ComponentName defaultApp = getDefaultPaymentApp(); |
| |
| for (ApduServiceInfo service : serviceInfos) { |
| PaymentAppInfo appInfo = new PaymentAppInfo(); |
| appInfo.banner = service.loadBanner(pm); |
| appInfo.caption = service.getDescription(); |
| if (appInfo.caption == null) { |
| appInfo.caption = service.loadLabel(pm); |
| } |
| appInfo.isDefault = service.getComponent().equals(defaultApp); |
| appInfo.componentName = service.getComponent(); |
| appInfos.add(appInfo); |
| } |
| |
| return appInfos; |
| } |
| |
| boolean isForegroundMode() { |
| try { |
| return Settings.Secure.getInt(mContext.getContentResolver(), |
| Settings.Secure.NFC_PAYMENT_FOREGROUND) != 0; |
| } catch (SettingNotFoundException e) { |
| return false; |
| } |
| } |
| |
| void setForegroundMode(boolean foreground) { |
| Settings.Secure.putInt(mContext.getContentResolver(), |
| Settings.Secure.NFC_PAYMENT_FOREGROUND, foreground ? 1 : 0) ; |
| } |
| |
| ComponentName getDefaultPaymentApp() { |
| String componentString = Settings.Secure.getString(mContext.getContentResolver(), |
| Settings.Secure.NFC_PAYMENT_DEFAULT_COMPONENT); |
| if (componentString != null) { |
| return ComponentName.unflattenFromString(componentString); |
| } else { |
| return null; |
| } |
| } |
| |
| public void setDefaultPaymentApp(ComponentName app) { |
| Settings.Secure.putString(mContext.getContentResolver(), |
| Settings.Secure.NFC_PAYMENT_DEFAULT_COMPONENT, |
| app != null ? app.flattenToString() : null); |
| } |
| } |