【发布时间】：2020-01-17 12:53:10
【问题描述】：
我的应用出现了有趣的崩溃。我添加了 4 个最常见的崩溃日志，但我无法解释它们。有没有人遇到过类似的问题？ p.s 我没有在我的代码中的任何地方使用ArrayList。
Fatal Exception: java.lang.RuntimeException: Unable to stop service workers.BackgroundPlayer@c853ae2: java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
Caused by java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
at java.util.ArrayList.remove(ArrayList.java:477)
at androidx.lifecycle.LifecycleRegistry.popParentState(LifecycleRegistry.java:202)
at androidx.lifecycle.LifecycleRegistry.backwardPass(LifecycleRegistry.java:317)
at androidx.lifecycle.LifecycleRegistry.sync(LifecycleRegistry.java:334)
at androidx.lifecycle.LifecycleRegistry.moveToState(LifecycleRegistry.java:145)
at androidx.lifecycle.LifecycleRegistry.handleLifecycleEvent(LifecycleRegistry.java:131)
at androidx.lifecycle.ServiceLifecycleDispatcher$DispatchRunnable.run(ServiceLifecycleDispatcher.java:105)
at androidx.lifecycle.ServiceLifecycleDispatcher.postDispatchRunnable(ServiceLifecycleDispatcher.java:45)
at androidx.lifecycle.ServiceLifecycleDispatcher.onServicePreSuperOnDestroy(ServiceLifecycleDispatcher.java:81)
at androidx.lifecycle.LifecycleService.onDestroy(LifecycleService.java:70)
at workers.BackgroundPlayer.onDestroy(streamPlayer.kt:385)
Fatal Exception: java.lang.ArrayIndexOutOfBoundsException: length=10; index=-1
at java.util.ArrayList.remove(ArrayList.java:486)
at androidx.lifecycle.LifecycleRegistry.popParentState(LifecycleRegistry.java:202)
at androidx.lifecycle.LifecycleRegistry.forwardPass(LifecycleRegistry.java:301)
at androidx.lifecycle.LifecycleRegistry.sync(LifecycleRegistry.java:339)
at androidx.lifecycle.LifecycleRegistry.moveToState(LifecycleRegistry.java:145)
at androidx.lifecycle.LifecycleRegistry.handleLifecycleEvent(LifecycleRegistry.java:131)
at androidx.lifecycle.ServiceLifecycleDispatcher$DispatchRunnable.run(ServiceLifecycleDispatcher.java:105)
at android.os.Handler.handleCallback(Handler.java:761)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:156)
at android.app.ActivityThread.main(ActivityThread.java:6523)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:941)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:831)
Fatal Exception: java.lang.ArrayIndexOutOfBoundsException: length=10; index=-1
at java.util.ArrayList.add(ArrayList.java:468)
at androidx.lifecycle.LifecycleRegistry.pushParentState(LifecycleRegistry.java:206)
at androidx.lifecycle.LifecycleRegistry.forwardPass(LifecycleRegistry.java:299)
at androidx.lifecycle.LifecycleRegistry.sync(LifecycleRegistry.java:339)
at androidx.lifecycle.LifecycleRegistry.moveToState(LifecycleRegistry.java:145)
at androidx.lifecycle.LifecycleRegistry.handleLifecycleEvent(LifecycleRegistry.java:131)
at androidx.lifecycle.ServiceLifecycleDispatcher$DispatchRunnable.run(ServiceLifecycleDispatcher.java:105)
服务类：
class BackgroundPlayer : LifecycleService() {
override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
super.onStartCommand(intent, flags, startId)
return START_NOT_STICKY
}
// Start service player
fun start() {
Thread {
run {
settingsLastPlayed(station)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) startForegroundService(Intent(this, BackgroundPlayer::class.java).apply { putExtra(station) })
else startService(Intent(this, BackgroundPlayer::class.java) .apply { putExtra(station) })
}
}.start()
}
override fun onDestroy() {
releasePlayer()
cancelRecording()
super.onDestroy()
}
private fun releasePlayer() {
mediaSession ?.release()
mediaSessionConnector ?.setPlayer(null)
playerNotificationManager?.setPlayer(null)
exoPlayer ?.release()
}
}
【问题讨论】：
-
什么时候出现这些崩溃？什么时候启动服务？此外，如果您使用前台服务，您还应该向用户 developer.android.com/guide/components/services#Foreground 显示通知。编辑：另外，您真的需要 LifecycleService，请尝试使用 Service。
-
这可能是 api 实现中的一个错误 - 谷歌搜索时发现了一些示例。它在调用 super.onDestroy 时发生 - 这可能是您的代码试图在该事件上做的最后一件事。如果是这种情况，您唯一能做的就是在
super.destroy()上捕获异常以自定义错误报告并抑制异常的传播。但是，它可能会在内部分派给 looper，这意味着您无法捕获异常 - 因此在这种情况下什么也做不了。 -
@Cata 我在 firebase crashlytics 上遇到崩溃，没有更多信息......何时何地为什么。这就是我掌握的所有信息。我还显示通知，是的，我需要 LifecycleService，因为我使用 RX，我需要取消订阅 observables 等。
-
@Andy 我不知道当我用 try catch 包装 super.destroy() 时它是否对我有帮助
标签： android service indexoutofboundsexception exoplayer foreground-service