ExoPlayer停止在后台播放 [英] ExoPlayer stops playing in background

问题描述

我有一个应用程序，该应用程序保留ExoPlayer实例的全局实例，以方便在后台进行音频流. 打开许多应用程序后，音频停止播放.

I have an application that keeps a global instance of an ExoPlayer instance to facilitate audio streams in the background. After opening lots of apps, the audio stops playing.

它发生如下:

• 打开Activity开始播放音频
• 按下后退按钮以关闭Activity
• 如果您不理会设备，音频仍会继续播放，并且会继续播放

• open Activity that starts playing audio
• press back button to close Activity
• the audio is still playing and keeps doing so if you leave the device alone (as intended)

但是，当您在最后一步之后打开十几个或更多应用程序时，ExoPlayer有时会停止播放. 我的猜测是发生了内存清理，因此ExoPlayer被释放了.我试图从日志中获取更多信息，但是到目前为止，它提供的帮助很少.

However, when you open a dozen or more apps after the last step, the ExoPlayer stops playing at some point. My guess is that a memory cleanup happens and thus ExoPlayer gets deallocated. I tried to get more information from the logs, but that has provided little help so far.

将ExoPlayer的引用保留在android.app.Service内没有任何作用.

Keeping a reference of the ExoPlayer inside an android.app.Service doesn't make a difference.

我正在测试的设备是具有Android 5.1.x的Nexus 5，但该问题也发生在其他设备上.

The device I am testing on is a Nexus 5 with Android 5.1.x, but the issue happens on other devices too.

我无法在ExoPlayer 文档页上或在StackOverflow上找不到解决方案谷歌.有人知道防止ExoPlayer停止播放的正确方法吗?

I couldn't find a solution in the ExoPlayer documentation pages nor on StackOverflow or Google. Does anyone know the correct way to prevent the ExoPlayer from stopping playback?

推荐答案

要确保Service尽可能有效地存活而不被系统杀死，您需要确保以前景服务.

To make sure a Service stays alive as much as possible without being killed by the system, you need to make sure you start it as a foreground service.

这意味着将有一条通知通知用户正在使用的服务，以便他可以知道它.因此，您必须以相应的通知启动服务.这是文档中的示例:

This means there will be a notification informing the user of the active service so he can be aware of it. Because of that, you must start the service with a corresponding notification. Here is the example from the docs:

Notification notification = new Notification(R.drawable.icon, getText(R.string.ticker_text),
            System.currentTimeMillis()); 
Intent notificationIntent = new Intent(this, ExampleActivity.class); 
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0); 
notification.setLatestEventInfo(this, getText(R.string.notification_title),
            getText(R.string.notification_message), pendingIntent); 
startForeground(ONGOING_NOTIFICATION_ID, notification);

这篇关于ExoPlayer停止在后台播放的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！