iOS app内显示远程通知

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我是靠谱客的博主曾经微笑，最近开发中收集的这篇文章主要介绍iOS app内显示远程通知，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

最近整理了项目使用的推送资料，包括原生APNS、亚马逊推送、谷歌FireBase推送，从申请证书到代码工具调试，基本整理的差不多。

本篇文章主要介绍app在前台活跃时，有推送时显示系统的原始通知框。在网上查了很多资料，都说只能app在后台时才能调用系统的通知弹框，所以以前用的是自定义的弹框，最近发现在app活跃时，可以调用本地通知达到app前台活跃时显示系统的弹框。

    //UIApplicationLaunchOptionsRemoteNotificationKey对应的是启动应用程序的远程通知信息userInfo（NSDictionary）
    -(void) dealPushNotificacton:(NSDictionary*) launchOptions {
        NSDictionary *remoteNotificationDic = nil;
        if (launchOptions != nil)
        {
            remoteNotificationDic = launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey];
            if (remoteNotificationDic != nil)
            {
                UPDINFO(@"Launched from push notification: %@", remoteNotificationDic);
                self.remoteNotificationUserInfo = remoteNotificationDic;
            }
        }
        [self registerRemoteNotifications];
    }

    - (void)registerRemoteNotifications {
        if ([UPIUtils deviceOS] < 10.0 ) {
            [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound |    UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
            dispatch_async(dispatch_get_main_queue(), ^{
                [[UIApplication sharedApplication] registerForRemoteNotifications];
            });

        } else {
            UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
            center.delegate = self;
            [center requestAuthorizationWithOptions:(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge) completionHandler:^(BOOL granted, NSError * _Nullable error)
             {
                 if(!error )
                 {
                     dispatch_async(dispatch_get_main_queue(), ^{
                         [[UIApplication sharedApplication] registerForRemoteNotifications];
                     });
                 } else {

                 }
             }];
        }
    }

ios 10之前和之后注册推送的方式不一样，要注意，下面需要注册通知成功和失败的代码。

    - (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(nonnull NSData *)deviceToken
    {
    }
    - (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error
    {
    }

下面的方法，当app在后台时点击才会进，app在前台时，收到通知就会进，大家可以打断点调试一下。

    - (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
    {
        // 收到推送通知后逻辑
        UPDINFO(@"didReceiveRemoteNotification %@",userInfo);
        self.remoteNotificationUserInfo = userInfo;
        //UIApplicationStateActive = 在app界面; UIApplicationStateInactive = 未在app界面;
        if (application.applicationState == UIApplicationStateActive)
        {
            [self showLocalNotification];
            //[self showRemoteNotification];
        } else {
            [self handlePushMessageInfo];
        }
    }

下面是不同的系统版本，调用本地通知，其中设置shouldAlwaysAlertWhileAppIsForeground参数直接决定了是否显示前台通知，大家要注意。其他的title，body，userinfo等信息看情况自己取值。

    -(void)showLocalNotification
    {
        if ([UPIUtils deviceOS] < 10.0 ) {
            UILocalNotification *notification = [[UILocalNotification alloc] init];
            notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:0.1];
            notification.repeatInterval = NSCalendarUnitDay;
            notification.alertBody = self.remoteNotificationUserInfo[@"data"][@"content"];
            notification.timeZone = [NSTimeZone defaultTimeZone];
            notification.soundName = UILocalNotificationDefaultSoundName;
            [[UIApplication sharedApplication] scheduleLocalNotification:notification];
        } else {
            UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
            content.body = self.remoteNotificationUserInfo[@"data"][@"content"];
            content.userInfo = self.remoteNotificationUserInfo;
            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) {
            }];
        }
    }

下面的这两个代理其实是声明通知方法的代理，适用于10及以上，这里注释掉通知点击之前的代码，只保留点击后的代理方法，在点击后方法中传值，跳转页面等。因为使用的是 didReceiveRemoteNotification方法，好像不兼容10及以上，但是系统会自动适配，所以注释掉了这个代理，不然只走点击前的方法，不走didReceiveRemoteNotification了。

    // 该两个代理回调适用于10以上，点击前：
    //- (void)userNotificationCenter:(UNUserNotificationCenter *)center
    //       willPresentNotification:(UNNotification *)notification
    //         withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler {
    //
    //    completionHandler(UNNotificationPresentationOptionSound);
    //}
    //点击后：
    - (void)userNotificationCenter:(UNUserNotificationCenter *)center
    didReceiveNotificationResponse:(UNNotificationResponse *)response
             withCompletionHandler:(void (^)(void))completionHandler {

        [self handlePushMessageInfo];
    }

下面的方法用不上，类似于didReceiveRemoteNotification这个方法。调试的时候试了很久，完全浪费时间。

    收到本地通知进行，点击跳转
    //- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
    //{
    //    //前台跳转
    //    if (application.applicationState == UIApplicationStateActive) {
    //         [self handlePushMessageInfo];
    //    }
    //}

---------------------
作者：HandesomeLi
来源：CSDN
原文：https://blog.csdn.net/lishuai1127/article/details/80583404
版权声明：本文为博主原创文章，转载请附上博文链接！