iOS远程推送、推送语音播报

注册极光推送

- (void)initJPUSHWithOptions:(NSDictionary *)launchOptions {
    // 添加初始化APNs代码
    // notice: 3.0.0及以后版本注册可以这样写，也可以继续用之前的注册方式
    JPUSHRegisterEntity * entity = [[JPUSHRegisterEntity alloc] init];
    entity.types = JPAuthorizationOptionAlert|JPAuthorizationOptionBadge|JPAuthorizationOptionSound;
    if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) {
        // 可以添加自定义categories
        [JPUSHService registerForRemoteNotificationTypes:(UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert) categories:nil];
    } else {
        // categories 必须为nil
        [JPUSHService registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert) categories:nil];
    }
    [JPUSHService registerForRemoteNotificationConfig:entity delegate:self];
    
    // ---------- 添加初始化JPush代码 BEGIN ----------
    // Optional
    // 获取IDFA
    // 如需使用IDFA功能请添加此代码并在初始化方法的advertisingIdentifier参数中填写对应值
    NSString *advertisingId = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
    NSString * appKey = @"45b7b***********70f1c1";
    NSString * channel = @"App Store";
    
#if DEBUG
    BOOL isProduction = YES;
    
    NSSet *set = [NSSet setWithObject:@"ios"];
    NSInteger xuliehao = 123456789;
    [JPUSHService addTags:set completion:^(NSInteger iResCode, NSSet *iTags, NSInteger seq) {
        NSLog(@"极光推送设置tag成功！");
    } seq:xuliehao];
#else
    BOOL isProduction = YES;
#endif
    
    // Required
    // init Push
    // notice: 2.1.5版本的SDK新增的注册方法，改成可上报IDFA，如果没有使用IDFA直接传nil
    // 如需继续使用pushConfig.plist文件声明appKey等配置内容，请依旧使用[JPUSHService setupWithOption:launchOptions]方式初始化。
    [JPUSHService setupWithOption:launchOptions appKey:appKey channel:channel apsForProduction:isProduction advertisingIdentifier:advertisingId];
    // ---------- 添加初始化JPush代码 END ----------
}

实现极光推送回调

// iOS 10 --- 前台显示推送，程序运行时接收到推送消息
- (void)jpushNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(NSInteger))completionHandler {
    
    NSDictionary * userInfo = notification.request.content.userInfo;
    if([notification.request.trigger isKindOfClass:[UNPushNotificationTrigger class]]) {
        [JPUSHService handleRemoteNotification:userInfo];
    }

    // 在这里处理推送
    
    // 执行这个方法，提醒用户用推送，有Badge、Sound、Alert三种提醒类型
    completionHandler(UNNotificationPresentationOptionAlert|UNNotificationPresentationOptionSound);
}

// iOS 10 --- 后台显示推送,点击进来的时候，接收推送消息
- (void)jpushNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler {
    
    NSDictionary * userInfo = response.notification.request.content.userInfo;
    if([response.notification.request.trigger isKindOfClass:[UNPushNotificationTrigger class]]) {
        [JPUSHService handleRemoteNotification:userInfo];
    }
       
    // 在这里处理推送
    
    // 系统要求执行这个方法
    completionHandler();
}

实现系统回调

// 收到推送消息，Required, iOS 7 Support
// content-available 或者 mutable-content 推送（普通的 Remote Notification不调用此参数，非普通的 Remote Notification在程序非杀死状态都会调用此函数，所以语音播报会再这里调用）
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
    
    [JPUSHService handleRemoteNotification:userInfo];
    completionHandler(UIBackgroundFetchResultNewData);
    
    // 取得 APNs 标准信息内容
    NSDictionary *aps = [userInfo valueForKey:@"aps"];
    NSString *content = [aps valueForKey:@"alert"];         //推送显示的内容
    // 语音播报
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [self playPushNotifationVideo:content];
    });
}

// 收到推送消息，Required,For systems with less than or equal to iOS6
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
    [JPUSHService handleRemoteNotification:userInfo];
}

// 本地推送
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
    
}

语音播报

1. 需要导入头文件#import
2. 实现实例变量AVSpeechSynthesizer *play;、UIBackgroundTaskIdentifier _bgTaskId;

//实现一下backgroundPlayerID:这个方法:
+ (UIBackgroundTaskIdentifier)backgroundPlayerID:(UIBackgroundTaskIdentifier)backTaskId {
    //设置并激活音频会话类别
    AVAudioSession *session=[AVAudioSession sharedInstance];
    [session setCategory:AVAudioSessionCategoryPlayback error:nil];
    [session setActive:YES error:nil];
    //允许应用程序接收远程控制
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
    //设置后台任务ID
    UIBackgroundTaskIdentifier newTaskId=UIBackgroundTaskInvalid;
    newTaskId=[[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:nil];
    if(newTaskId!=UIBackgroundTaskInvalid&&backTaskId!=UIBackgroundTaskInvalid)
    {
        [[UIApplication sharedApplication] endBackgroundTask:backTaskId];
    }
    return newTaskId;
}

- (void)playPushNotifationVideo:(NSString *)string {
    play = [[AVSpeechSynthesizer alloc] init];
    //play.delegate=self;
    AVSpeechSynthesisVoice *voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"zh-CN"];    // 设置发音，这是中文普通话
    AVSpeechUtterance *utterance = [[AVSpeechUtterance alloc]initWithString:string];        // 需要转换的文字
    utterance.rate = 0.5;               // 设置语速，范围0-1，注意0最慢，1最快；
    utterance.voice = voice;
    [play speakUtterance:utterance];    // 开始
}

语音播报只能在前台进行播报，无法再后台进行播报，所以需要进行以下开发：

//程序失去焦点
- (void)applicationWillResignActive:(UIApplication *)application {
    //开启后台处理多媒体事件
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
    AVAudioSession *session=[AVAudioSession sharedInstance];
    [session setActive:YES error:nil];
    //后台播放
    [session setCategory:AVAudioSessionCategoryPlayback error:nil];
    //这样做，可以在按home键进入后台后 ，播放一段时间，几分钟吧。
    //但是不能持续播放网络歌曲，若需要持续播放网络歌曲，还需要申请后台任务id，具体做法是：
    //其中的_bgTaskId是后台任务UIBackgroundTaskIdentifier _bgTaskId;
    _bgTaskId = [AppDelegate backgroundPlayerID:_bgTaskId];
}

注意：程序杀死之后，无法进行语音播报；

参考文章：
1. 关于APP上语音播报的完整实现（iOS篇）
2. iOS - 根据推送消息进行语音播报
3. iOS，推送+后台语音播报