UILocalNotification声音

Question

当用户通过地理围栏进入一个区域时，我会触发一个本地通知。但是，当我按下主页按钮查看本地通知时，它确实会显示，但没有声音。我尝试禁用和启用“播放用户界面声音..”在mac设置中，关闭并重新打开xcode，清理项目，最后重新启动mac。什么都没用..我遗漏了什么？

- (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region {
    NSLog(@"Entered Region - %@", region.identifier);
    UILocalNotification *localNotification = [[UILocalNotification alloc] init];
    [localNotification setAlertBody:@"You are about to enter.."];
    [localNotification setSoundName:@"Voicemail.caf"];

    UIApplication *application = [UIApplication sharedApplication];
    [application presentLocalNotificationNow:localNotification];
}

Answer 1

在这里你可以传递你的声音文件名

UILocalNotification *notifThreshold = [[UILocalNotification alloc]init];
    if(notifThreshold)
    {
        notifThreshold.alertBody = statusMsg;
        notifThreshold.alertAction= @"Open";
        notifThreshold.userInfo = userInfo;
        notifThreshold.soundName = UILocalNotificationDefaultSoundName;

        UIApplicationState state = [[UIApplication sharedApplication] applicationState];
        if (state == UIApplicationStateBackground)
        {

        notifThreshold.applicationIconBadgeNumber = [[UIApplication sharedApplication]
                                                     applicationIconBadgeNumber]+1;
        }
        [[UIApplication sharedApplication] presentLocalNotificationNow:notifThreshold];
    }

Answer 2

转到构建阶段并将您的.caf文件添加到Copy Bundle Resources。它帮助了我

Answer 3

请确保您的应用程序在通知中心的声音是启用的，而不是使用上限扩展名，尝试使用wav扩展名，例如"beep.wav“或"Default.wav”...