UILocalNotification 声音未在设备上播放
我被同样的问题困扰了一段时间，希望有人能提供帮助。
我创建了一个闹钟应用程序，它使用 UILocalNotification 在选定的时间播放闹钟声音。
我的应用程序在模拟器上运行良好，但当我开始在 iPhone 上测试它时，通知声音停止响起。
我的声音在 .caf 中，大约 20 秒长，大小写正确，一切都正确，所以我真的不明白为什么它不响。我在应用程序的其他地方使用相同的声音文件，它工作正常，所以我知道文件已正确加载。 通知正常显示，只是没有声音。是的，我确保 iPhone 的音量已调高。
有谁知道为什么会发生这种情况？ 下面是我的代码。
先感谢您！ -艾玛
UILocalNotification* alarm = [[ULocalNotification alloc] init];
alarm.fireDate = pickedDate;
alarm.timeZone = [NSTimeZone defaultTimeZone];
alarm.hasAction = YES;
alarm.alertAction = @"SNOOZE";
alarm.repeatInterval = 0;
alarm.soundName = @"Alarm11.caf";
alarm.alertBody = @"Alarm";
[app scheduleLocalNotification:alarm];
I have been stuck on the same problem for a while, and I hope someone can help.
I created an alarm clock app, which uses UILocalNotification to play an alarm sound at the selected time.
My app was working fine on the simulator, but when I started testing it on an iPhone, the notification sound stopped ringing.
I have the sound in .caf, about 20 seconds long, correct capitalization and everything, so I really can't figure out why it doesn't ring. I use the same sound file elsewhere in the app, and it works fine, so I do know the file is loaded properly.
The notification shows up properly, just without the sound. And yes, I made sure the volume is turned up on my iPhone.
Does anyone have any idea why this is happening?
Below is my code.
Thank you in advance! -Ema
UILocalNotification* alarm = [[ULocalNotification alloc] init];
alarm.fireDate = pickedDate;
alarm.timeZone = [NSTimeZone defaultTimeZone];
alarm.hasAction = YES;
alarm.alertAction = @"SNOOZE";
alarm.repeatInterval = 0;
alarm.soundName = @"Alarm11.caf";
alarm.alertBody = @"Alarm";
[app scheduleLocalNotification:alarm];
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我遇到了同样的问题，并在 Stackoverflow 上的类似问题中找到了解决方案（但我无法再次找到它以提供链接） - 我的问题的解决方案是打开我的 mac 的系统偏好设置并打开声音选项。在“声音”屏幕中，取消选中“播放用户界面声音效果”，然后重新选中以重新设置，然后您的声音应该可以正常播放。
I had the same problem and found a solution in a similar question on Stackoverflow (but I can't find it again to provide the link) - The solution to my problem was to open the System Preferences for my mac and open the Sounds option. In the Sounds screen, uncheck and then re-check the 'Play user interface sound effects' to re-set and your sound should then play ok.
我有类似的问题。确保在文件检查器选项卡中检查了目标成员资格。另外，从手机中删除该应用程序，进行全新构建，然后重新启动手机并查看其是否有效。
I had a similar issue. Make sure the target membership is checked in the file inspector tab. Also, remove the app from your phone, do a clean build and then, restart your phone and see if it works.