xcode 从应用程序播放音频，即使它在后台
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Play audio from app, even when it is in the background
提问by PanicDev
I am having difficulties determining how I would play audio in the background for my iOS app. I have a NSTimer and wish to have a sound be played when it reaches 5 minutes, even when in the background. I already have the audio background mode enabled, but unsure how to accomplish my idea.
我很难确定如何在我的 iOS 应用程序的后台播放音频。我有一个 NSTimer 并且希望在达到 5 分钟时播放声音，即使是在后台。我已经启用了音频背景模式，但不确定如何实现我的想法。
回答by 4GetFullOf
Under capabilities select the following:
在功能下选择以下内容：
In your plist make sure where it says "Application does not run in background" is NO.
在您的 plist 中，确保“应用程序不在后台运行”的位置为否。
Then add the following to your your appDelegate.m file.
然后将以下内容添加到您的 appDelegate.m 文件中。
NSError *sessionError = nil;
NSError *activationError = nil;
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error:&sessionError];
[[AVAudioSession sharedInstance] setActive: YES error: &activationError];
In the following method:
在以下方法中：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
return YES;
}
