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Fix flow parallel

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This commit is contained in:
LoveSy 2021-11-13 03:32:29 +08:00 committed by John Wu
parent 1e05f8c646
commit b6affe06a5
1 changed files with 17 additions and 9 deletions
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26
app/src/main/java/com/topjohnwu/magisk/ui/deny/DenyListViewModel.kt
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@ -46,6 +46,14 @@ class DenyListViewModel : BaseViewModel(), Queryable {
it.bindExtra(BR.viewModel, this)
}
@FlowPreview
private inline fun <T, R> Flow<T>.concurrentMap(crossinline transform: suspend (T) -> R): Flow<R> {
return flatMapMerge { value ->
flow { emit(transform(value)) }
}
}
@FlowPreview
@SuppressLint("InlinedApi")
override fun refresh() = viewModelScope.launch {
if (!Utils.showSuperUser()) {
@ -53,18 +61,18 @@ class DenyListViewModel : BaseViewModel(), Queryable {
return@launch
}
state = State.LOADING
val (apps, diff) = withContext(Dispatchers.IO) {
val (apps, diff) = withContext(Dispatchers.Default) {
val pm = AppContext.packageManager
val denyList = Shell.su("magisk --denylist ls").exec().out
.map { CmdlineListItem(it) }
val apps = pm.getInstalledApplications(MATCH_UNINSTALLED_PACKAGES).asFlow()
.filter { AppContext.packageName != it.packageName }
.map { async { AppProcessInfo(it, pm, denyList) } }
.map { it.await() }
.filter { it.processes.isNotEmpty() }
.map { async { DenyListRvItem(it) } }
.map { it.await() }
.toCollection(ArrayList())
val apps = pm.getInstalledApplications(MATCH_UNINSTALLED_PACKAGES).run {
asFlow()
.filter { AppContext.packageName != it.packageName }
.concurrentMap { AppProcessInfo(it, pm, denyList) }
.filter { it.processes.isNotEmpty() }
.concurrentMap { DenyListRvItem(it) }
.toCollection(ArrayList(size))
}
apps.sort()
apps to items.calculateDiff(apps)
}