Question

我正在使用android音频应用程序。该应用程序运行正常，但有时会随机抛出IllegalStateException。

Fatal Exception: java.lang.IllegalStateException

com.google.android.exoplayer2.util.Assertions.checkState (Assertions.java:81)
com.google.android.exoplayer2.upstream.Loader$LoadTask.start (Loader.java:338)
com.google.android.exoplayer2.upstream.Loader$LoadTask.handleMessage (Loader.java:468)
android.os.Handler.dispatchMessage (Handler.java:102)
android.os.Looper.loop (Looper.java:148)
android.os.HandlerThread.run (HandlerThread.java:61)

从堆栈跟踪中，我猜它在加载失败时会抛出，但是我无法复制并且不知道原因。

我的代码是这样的。

val userAgent = WebView(mainService).settings.userAgentString
        val dsf = DefaultDataSourceFactory(mainService, userAgent, eventWrapper)
        val uri = Uri.fromFile(file)

        var defaultExtractorsFactory: DefaultExtractorsFactory? = null
        if (file.path.toUpperCase(Locale.US).endsWith("AAC")) {
            defaultExtractorsFactory = DefaultExtractorsFactory()
            defaultExtractorsFactory.setConstantBitrateSeekingEnabled(true)
        }

        val mediaSource =  ProgressiveMediaSource.Factory(dsf, defaultExtractorsFactory)
                .createMediaSource(uri)

        player?.playWhenReady = false

        val trackSelector = DefaultTrackSelector(AdaptiveTrackSelection.Factory())
        player = ExoPlayerFactory.newSimpleInstance(service, trackSelector).apply {
            val audioAttributes = AudioAttributes.Builder()
                    .setUsage(C.USAGE_MEDIA)
                    .setContentType(C.CONTENT_TYPE_MOVIE)
                    .build()
            setAudioAttributes(audioAttributes, true)
        }

        player!!.addListener(eventWrapper)
        player.prepare(mediaSource)
        player.playWhenReady = true

依赖性；

def exo_ver = "2.10.2"
implementation "com.google.android.exoplayer:exoplayer-core:$exo_ver"
implementation "com.google.android.exoplayer:exoplayer-hls:$exo_ver"

我的代码有问题吗？预先谢谢你。

Exoplayer随机引发IllegalStateException

0 个答案: