ios - 解析 iOS API - 添加 channel

Question

我已经像这样配置了我的 Parse 接收 api:

[Parse setApplicationId:@"***" clientKey:@"***"];

[application registerForRemoteNotificationTypes:UIRemoteNotificationTypeBadge|
 UIRemoteNotificationTypeAlert|
 UIRemoteNotificationTypeSound];

和

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken
{
    // Store the deviceToken in the current installation and save it to Parse.
     PFInstallation *currentInstallation = [PFInstallation currentInstallation];
    [currentInstallation setDeviceTokenFromData:deviceToken];
    [currentInstallation saveInBackground];
}

然后在我的代码中，我添加要订阅的 channel ，如下所示:

PFInstallation *currentInstallation = [PFInstallation currentInstallation];
NSMutableArray *array = [NSMutableArray array];

for (Room *aRoom in rooms) {

    NSString *strChannel = [NSString stringWithFormat:@"pr_%@", aRoom.roomId];
    [array addObject:strChannel];
}

[currentInstallation setChannels:array];

在我的示例中， channel 是“pr_4”。

但是，当我在此 channel 上推送某些内容时，解析仪表板告诉我没有人订阅 channel “pr_4”。我不明白我做错了什么。

Answer 1

在您提供的代码中，您从未实际保存 PFInstallation反对 parse.com。您应该添加:

[currentInstallation saveInBackground];

在您的代码末尾，在您设置 channel 之后。

旁注:您也可以使用方法subscribeToChannelInBackground:来自 PFPush类，以便为设备订阅 channel :

subscribeToChannelInBackground:

Asynchronously subscribes the device to a channel of push notifications.

+ (void)subscribeToChannelInBackground:(NSString *)channel

Parameters

channel

The channel to subscribe to. The channel name must start with a letter and contain only letters, numbers, dashes, and underscores.