Change sample ViewHolders to implement LifecycleScopeProvider #157
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ZacSweers
reviewed
Jan 4, 2018
| case BIND: | ||
| return ViewHolderEvent.UNBIND; | ||
| default: | ||
| throw new LifecycleEndedException("Cannot use view holder lifecycle after unbind."); |
| } | ||
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| override fun peekLifecycle(): ViewHolderEvent? { | ||
| return lifecycleEvents.value |
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nit: can be single body expression
override fun peekLifecycle() = lifecycleEvents.value| } | ||
| } | ||
| override fun lifecycle(): Observable<ViewHolderEvent> { | ||
| return lifecycleEvents.hide() |
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nit: can be single body expression
override fun lifecycle() = lifecycleEvents.hide()|
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| override fun onUnbind() { | ||
| emitUnbindIfPresent() | ||
| unbindNotifier = null | ||
| lifecycleEvents.onNext(UNBIND) |
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can single body this and onBind above as well
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| private var unbindNotifier: MaybeSubject<Any>? = null | ||
| private val lifecycleEvents = BehaviorSubject.create<ViewHolderEvent>() |
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let's make this lazy
private val lifecycleEvents by lazy { BehaviorSubject.create<ViewHolderEvent>() }
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Description:
Change AutoDisposeViewHolder from a ScopeProvider to a LifecycleScopeProvider. This better matches the underlying programming model, and provides some safety guarantees around subscription timing, as well as helping to detect certain issues that may arise from support library version bumps and changes to internal RecyclerView/ViewHolder logic.