/* * Copyright (C) 2017 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.nfc; import android.content.BroadcastReceiver; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.nfc.Constants; /** * Boot completed receiver. used to disable the application if the device doesn't * support NFC when device boots. */ public class NfcBootCompletedReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if (Intent.ACTION_BOOT_COMPLETED.equals(action)) { PackageManager pm = context.getPackageManager(); if (!pm.hasSystemFeature(Constants.FEATURE_NFC_ANY)) { pm.setApplicationEnabledSetting(context.getPackageName(), PackageManager.COMPONENT_ENABLED_STATE_DISABLED, 0); } else { // If the device does support NFC, we know that we don't need to run // this code again, so disabling the boot receiver. This is for saving // CPU cycles spent on NFC cold-start during boot for devices that // actually support NFC. pm.setComponentEnabledSetting(new ComponentName(context, this.getClass()), PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP); } } } }