最近碰到个接收到推送要实现语音播报的需求，在Apple提供的API里是有相关的类可以用的，废话不多说，直接上代码：
首先在AppDelegate里面配置极光推送：
JPUSHRegisterEntity * entity = [JPUSHRegisterEntity new];
entity.types = JPAuthorizationOptionAlert|JPAuthorizationOptionBadge|JPAuthorizationOptionSound;
if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) {
// 可以添加自定义categories
}
[JPUSHService registerForRemoteNotificationConfig:entity delegate:self];
[JPUSHService setupWithOption:launchOptions appKey:kJPushKey
channel:nil
apsForProduction:DEBUG ? NO :YES
advertisingIdentifier:nil];
// MARK: - 未经过APNS的socket发过来的数据 相当于是socket长链接接收到的数据，没经过APNS，那就是不会出现通知的下拉横幅
[[NSNotificationCenter defaultCenter] addObserverForName:kJPFNetworkDidReceiveMessageNotification object:nil queue:[NSOperationQueue mainQueue]
usingBlock:^(NSNotification * _Nonnull note) {
iToastText([note.userInfo mj_JSONString]);
_remoteDicInfo = note.userInfo;
[self handelRemoteNotification];
}];
//获取远程推送消息
NSDictionary *remoteNotificationDic = nil;
if (launchOptions != nil) {
remoteNotificationDic = launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey];
if (remoteNotificationDic != nil) {
NSLog(@"Launched from push notification: %@", remoteNotificationDic);
_remoteDicInfo = remoteNotificationDic;
}
}
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
[JPUSHService registerDeviceToken:deviceToken];
}
// MARK: - 配置推送
- (void)configurePush {
//8.0以上的需要注册用户通知
if ([UIDevice currentDevice].systemVersion.floatValue >=8.0) {
//注册用户通知·
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:settings];
//注册远程通知
[[UIApplication sharedApplication] registerForRemoteNotifications];
} else {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
//iOS8以下的通知
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert];
#pragma clang diagnostic pop
}
}
// MARK: - 远程推送
- (void)jpushNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(NSInteger))completionHandler {
// Required
NSDictionary * userInfo = notification.request.content.userInfo;
if([notification.request.trigger isKindOfClass:[UNPushNotificationTrigger class]]) {
[JPUSHService handleRemoteNotification:userInfo];
[self handelRemoteNotification];
}
completionHandler(UNNotificationPresentationOptionAlert);
}
// iOS 10 Support
- (void)jpushNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler {
// Required
NSDictionary * userInfo = response.notification.request.content.userInfo;
if([response.notification.request.trigger isKindOfClass:[UNPushNotificationTrigger class]]) {
[JPUSHService handleRemoteNotification:userInfo];
[self handelRemoteNotification];
}
completionHandler();
}
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
// Required, iOS 7 Support
[JPUSHService handleRemoteNotification:userInfo];
completionHandler(UIBackgroundFetchResultNewData);
[self handelRemoteNotification];
}
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
// Required,For systems with less than or equal to iOS6
[JPUSHService handleRemoteNotification:userInfo];
[self handelRemoteNotification];
}
- (void)handelRemoteNotification {
if ([UIApplication sharedApplication].applicationState == UIApplicationStateActive) {
//前台状态下
if ([UIDevice currentDevice].systemVersion.floatValue < 10.0 ) {
UILocalNotification *notification = [[UILocalNotification alloc] init];
notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:0.1];
notification.repeatInterval = NSCalendarUnitDay;
notification.alertBody = _remoteDicInfo[@"content"];
notification.timeZone = [NSTimeZone defaultTimeZone];
notification.soundName = UILocalNotificationDefaultSoundName;
[[UIApplication sharedApplication] scheduleLocalNotification:notification];
} else {
UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
content.body = _remoteDicInfo[@"content"];
content.userInfo = _remoteDicInfo;
content.sound = [UNNotificationSound defaultSound];
[content setValue:@(YES) forKeyPath:@"shouldAlwaysAlertWhileAppIsForeground"];//很重要的设置
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@"Notif" content:content trigger:nil];
[[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
}];
//语音播报
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
AVSpeechSynthesizer * av = [AVSpeechSynthesizer new];
AVSpeechUtterance * utterance = [[AVSpeechUtterance alloc]initWithString:_remoteDicInfo[@"content"]];
AVSpeechSynthesisVoice * voiceType = [AVSpeechSynthesisVoice voiceWithLanguage:@"zh-CN"];
utterance.voice = voiceType;
utterance.rate = 0.5;
[av speakUtterance:utterance];
});
}
}
}
但是写了一波demo并且配置了推送证书以后，发现只有在前台接收到推送消息的情况下才能做到语音播报，但是需求是即使App在后台(但是为被杀死)的情况下，接收到Apns远程推送消息也要能语音播报，于是乎，我开始来研究一波，看了一波极光推送的官方文档之后，发现了新特性：
屏幕快照 2018-09-19 11.23.15.png
屏幕快照 2018-09-19 11.23.25.png
服务端在配置过程中需要在payload中加入content-available，并设置为1（这是关键），再试一波(记得一定要用真机)，你会发现App在后台运行状态下，也能走到相关的方法里面去，代码如下：
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(nonnull void (^)(UIBackgroundFetchResult))completionHandler {
NSLog(@"remote: %@", userInfo);
completionHandler(UIBackgroundFetchResultNewData);
AVSpeechUtterance *utterance = [AVSpeechUtterance speechUtteranceWithString:userInfo[@"aps"][@"alert"]];
AVSpeechSynthesizer *synth = [AVSpeechSynthesizer new];
[synth speakUtterance:utterance];
}