使用Parse在iOS中推送通知

Question

我正在嘗試為每個應用程序用戶設置一個唯一的渠道。

- (void)application:(UIApplication *)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    // Store the deviceToken in the current Installation and save it to Parse.
    PFInstallation *currentInstallation = [PFInstallation currentInstallation];
    UIDevice *device = [UIDevice currentDevice];

    NSString  *currentDeviceId = [[device identifierForVendor]UUIDString];
    NSLog(@"DEVICE=%@",currentDeviceId);
    NSMutableString *canal = [[NSMutableString alloc] initWithString:@"a" ];
    [canal appendString:currentDeviceId];
    NSLog(@"CANAL=%@",canal);
    [currentInstallation setDeviceTokenFromData:deviceToken];
    [currentInstallation addUniqueObject:canal forKey:@"channels"];
    [currentInstallation saveInBackground];
}

通道名稱的日志為：

CANAL=a35EFF93B-6CD0-4D09-9AE2... (hidden here rest of id)

但是我得到了錯誤：

[Error]: Channel name must start with a letter

如您所見，頻道名稱以字母開頭。 我在這里做錯了什么？

已編輯

- (void)application:(UIApplication *)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    // Store the deviceToken in the current Installation and save it to Parse.
    PFInstallation *currentInstallation = [PFInstallation currentInstallation];
    UIDevice *device = [UIDevice currentDevice];

    NSString  *currentDeviceId = [[device identifierForVendor]UUIDString];
    NSLog(@"DEVICE=%@",currentDeviceId);
    NSMutableString *canal = [[NSMutableString alloc] initWithString:@"a" ];
    [canal appendString:currentDeviceId];
    NSLog(@"CANAL=%@",canal);

    if (currentInstallation.channels == nil)
    {
        currentInstallation.channels = [[NSArray alloc] init];
    }
    [currentInstallation addUniqueObject:canal forKey:@"channels"];
    [currentInstallation setDeviceTokenFromData:deviceToken];

    [currentInstallation saveInBackground];
}

Answer 1

替換此行

[currentInstallation setDeviceTokenFromData：deviceToken]；

有了這個

NSString *tokenString = [NSString stringWithUTF8String:[deviceToken bytes]];

NSString* neweviceToken = [[[[tokenString description]
                     stringByReplacingOccurrencesOfString: @"<" withString: @""] 
                    stringByReplacingOccurrencesOfString: @">" withString: @""] 
                   stringByReplacingOccurrencesOfString: @" " withString: @""];

[currentInstallation setDeviceTokenFromData:newDeviceToken];

和運行。

可以幫助您。