适配 iOS 13 设置 deviceToken

在 iOS 13 之前的版本使用下面代码可以将获取到的 deviceToken，转为 NSString 类型，并去掉其中的空格和尖括号，作为参数传入 setDeviceToken: 方法中。

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {NSString *token = [deviceToken description];token = [token stringByReplacingOccurrencesOfString:@\"<\" withString:@\"\"];token = [token stringByReplacingOccurrencesOfString:@\">\" withString:@\"\"];token = [token stringByReplacingOccurrencesOfString:@\" \" withString:@\"\"];[[RCIMClient sharedRCIMClient] setDeviceToken:token];}

但是上面这段代码在 iOS 13 上已经无法获取准确的 deviceToken 了，iOS 13 的设备通过 [deviceToken description] 获取的内容如下：

{length=32,bytes=0xfe270338e80825d6c5d1754096f916b8...0d19a5d5834cff75}

解决方法：

- (void)application:(UIApplication *)applicationdidRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {if (@available(iOS 13.0, *)) {NSString *token = [self getHexStringForData:deviceToken];NSLog(@\"iOS 13之后的deviceToken的获取方式\");} else {NSString *deviceTokenString = [[[[deviceToken description]stringByReplacingOccurrencesOfString:@\"<\" withString:@\"\"]stringByReplacingOccurrencesOfString:@\">\" withString:@\"\"]stringByReplacingOccurrencesOfString:@\" \" withString:@\"\"];NSLog(@\"iOS 13之前的deviceToken的获取方式\");}}- (NSString *)getHexStringForData:(NSData *)data {NSUInteger len = [data length];char *chars = (char *)[data bytes];NSMutableString *hexString = [[NSMutableString alloc] init];for (NSUInteger i = 0; i < len; i ++) {[hexString appendString:[NSString stringWithFormat:@\"%0.2hhx\", chars[i]]];}return hexString;}

或者

- (void)application:(UIApplication *)applicationdidRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {const unsigned *tokenBytes = [deviceToken bytes];if (tokenBytes == NULL) {return;}NSString *token = [NSString stringWithFormat:@\"%08x%08x%08x%08x%08x%08x%08x%08x\", ntohl(tokenBytes[0]), ntohl(tokenBytes[1]), ntohl(tokenBytes[2]), ntohl(tokenBytes[3]), ntohl(tokenBytes[4]), ntohl(tokenBytes[5]), ntohl(tokenBytes[6]), ntohl(tokenBytes[7])];}

Swift 处理方法：

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {var deviceTokenString = String()let bytes = [UInt8](deviceToken)for item in bytes {deviceTokenString += String(format: \"%02x\", item&0x000000FF)}// 设置deviceTokenString 并发送到服务器}

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