从应用程序播放音频，即使是在后台 [英] Play audio from app, even when it is in the background

问题描述

我遇到困难的决定我怎么会在后台对我的iOS应用程序播放音频。我有一个的NSTimer并希望有当它达到5分钟，声音播放，即使在后台时。我已经启用音频背景模式，但不知道该如何实现我的想法。

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.

推荐答案

在功能选择以下内容：

在你的plist确保它说：应用程序不能在后台运行是NO。

In your plist make sure where it says "Application does not run in background" is NO.

然后添加以下到您的appDelegate.m文件。

Then add the following to your your appDelegate.m file.

  NSError *sessionError = nil;
NSError *activationError = nil;
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error:&sessionError];
[[AVAudioSession sharedInstance] setActive: YES error: &activationError];

在下面的方法：

    - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    return YES;
}

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