khushpanchal
commented
1 month ago Thanks for reporting,
Please use version 2.0.1 of library I have fixed both issue in it.
Reason and workaround of the error: For the 1st part, an exception is coming because when we make an observe call and by that time download entry is not there inside the room it is crashing.
For 2nd part somehow room is observing all the ids, when we make observeDownloadById call to some id, all previous onserve calls get observed.
As a workaround (if using version 2.0.0) You can add some initial delay before calling observeDownloadById or inside flow before collect, call .retry(1) which will retry on exception by that time download entry will be there. Make sure to call .catch() so app will not crash
For second point call .distinctUntilChanged() before collecting
The previous app process crashed. This is the stack trace of the crash: java.lang.NullPointerException: Parameter specified as non-null is null: method com.ketch.internal.utils.MapperUtilKt.toDownloadModel, parameter
at com.ketch.internal.utils.MapperUtilKt.toDownloadModel(Unknown Source:4)
at com.ketch.internal.download.DownloadManager$observeDownloadById$$inlined$map$1$2.emit(Emitters.kt:224)
at kotlinx.coroutines.flow.internal.SafeCollectorKt$emitFun$1.invoke(SafeCollector.kt:15)
at kotlinx.coroutines.flow.internal.SafeCollectorKt$emitFun$1.invoke(SafeCollector.kt:15)
at kotlinx.coroutines.flow.internal.SafeCollector.emit(SafeCollector.kt:87)
at kotlinx.coroutines.flow.internal.SafeCollector.emit(SafeCollector.kt:66)
at kotlinx.coroutines.flow.FlowKtChannelsKt.emitAllImpl$FlowKtChannelsKt(Channels.kt:37)
at kotlinx.coroutines.flow.FlowKt__ChannelsKt.emitAll(Channels.kt:30)
at kotlinx.coroutines.flow.FlowKt.emitAll(Unknown Source:1)
at androidx.room.CoroutinesRoom$Companion$createFlow$1$1.invokeSuspend(CoroutinesRoom.kt:137)
at androidx.room.CoroutinesRoom$Companion$createFlow$1$1.invoke(Unknown Source:8)
at androidx.room.CoroutinesRoom$Companion$createFlow$1$1.invoke(Unknown Source:4)
at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:78)
at kotlinx.coroutines.CoroutineScopeKt.coroutineScope(CoroutineScope.kt:264)
at androidx.room.CoroutinesRoom$Companion$createFlow$1.invokeSuspend(CoroutinesRoom.kt:111)
at androidx.room.CoroutinesRoom$Companion$createFlow$1.invoke(Unknown Source:8)
at androidx.room.CoroutinesRoom$Companion$createFlow$1.invoke(Unknown Source:4)
at kotlinx.coroutines.flow.SafeFlow.collectSafely(Builders.kt:61)
at kotlinx.coroutines.flow.AbstractFlow.collect(Flow.kt:230)
at com.ketch.internal.download.DownloadManager$observeDownloadById$$inlined$map$1.collect(SafeCollector.common.kt:113)
at com.mobileitm.mdm.common.KetchHelper$observeDownload$2.invokeSuspend(KetchHelper.kt:82)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:108)
at kotlinx.coroutines.internal.LimitedDispatcher$Worker.run(LimitedDispatcher.kt:115)
at kotlinx.coroutines.scheduling.TaskImpl.run(Tasks.kt:103)
at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:584)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:793)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:697)
at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:684)
Suppressed: kotlinx.coroutines.internal.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@f7aa4aa, Dispatchers.IO].
When observe live data with ID this error is coming,
In additon, Success is coming 4 times why its like that. I am downloading step by step. I am sending 1 ID but downloading 4 times