遠程推送

一、生成對應的生產通知證書和發佈通知證書

證書生成部分就不做介紹了

二、開啓應用的推送能力

這是會生成一個TestPush.entitlements文件，裏面APS Environment屬性值爲development,直接運行一直是測試環境，打包爲ipa後則爲正式環境。

三、註冊遠程通知

1.導入頭文件

在Appdelegate.m文件裏引入UserNotifications/UserNotifications.h，同時要遵循UNUserNotificationCenterDelegate協議

#import <UserNotifications/UserNotifications.h>

2.註冊通知

// 在該函數裏進行註冊
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    [self registPushNotificationAuthorization:application];
    return YES;
}

- (void)registPushNotificationAuthorization:(UIApplication *)application{

    if (@available(iOS 10.0, *)) {

        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        //必須寫代理，不然無法監聽通知的接收與點擊事件
        center.delegate = self;
        [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert) completionHandler:^(BOOL granted, NSError * _Nullable error) {

            if (!error && granted) {
                NSLog(@"註冊成功");
            }else{
                NSLog(@"註冊失敗");
            }
        }];

    } else {
        //iOS 8 - iOS 10系統
        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil];
        [application registerUserNotificationSettings:settings];
    }

    //註冊遠端消息通知獲取device token
    [application registerForRemoteNotifications];
}

3.獲取Device Token

//獲取DeviceToken成功
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken{

    //錯誤寫法,string = nil
    //NSString *string = [[NSString alloc] initWithData:deviceToken encoding:NSUTF8StringEncoding];

    //正確寫法
    NSString *deviceString = [[deviceToken description] stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"<>"]];
    deviceString = [deviceString stringByReplacingOccurrencesOfString:@" " withString:@""];

    NSLog(@"deviceToken = %@",deviceString);
}

//獲取DeviceToken失敗
- (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error{

    NSLog(@"get DeviceToken fail:%@\n",error.description);
}

4.接收通知

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {

    //7.0以後
    // 處理通知
    completionHandler(UIBackgroundFetchResultNewData);
}

//===================== UNUserNotificationCenterDelegate，10以後 ==========================
// 前臺收到通知調用
- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler {

    // 需要執行這個方法，選擇是否提醒用戶，有Badge、Sound、Alert三種類型可以設置
    completionHandler(UNNotificationPresentationOptionBadge|
                      UNNotificationPresentationOptionSound|
                      UNNotificationPresentationOptionAlert);
}

//點擊通知調用
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void(^)(void))completionHandler {

     // 處理通知
     completionHandler();
}

四、測試

可以使用第三方NWPusher進行測試