theblitz / observablecollections Goto Github PK

RecyclerView support range notification (notifyItemRangeRemoved, notifyItemRangeChanged, notifyItemRangeInserted)

Is there a reason why the ObservableCollectionsdoesn't support such mutations?

I have to delete one element at a time

Map put sends a Clear action instead of a Put action.

    fun put(key: X, value: Y): Y? {
        val resultValue = map!!.put(key, value)
        signalChanged(action = ObservableCollectionsAction.Clear, actionKey = key, actionValue = value, resultValue = resultValue)
        return resultValue
    }

    fun putAll(from: Map<out X, Y>) {
        map!!.putAll(from)
        signalChanged(action = ObservableCollectionsAction.Clear, actionMap = from)
        
    }

observeForever needs the same treatment as this:

    override fun observe(owner: LifecycleOwner, observer: Observer<in ObservableMap<X, Y, T>>) {
        super.observe(owner, Observer { observer.onChanged(this) })
    }

Otherwise when called, the observer is called with a null mData and nothing useful happens.

removeAt(index: Int) sends element index

 signalChanged(ObservableCollectionsAction.RemoveAt, actionInt = index, resultElement = resultElement)

but add(index: Int, element: X) with an index for unknown reason not

signalChanged(ObservableCollectionsAction.Add, actionElement = element)

Why? Let him send it too.

I have the ManActivity as navigation host and start LoginFragment (startDestination), where do i get navigation drawer and lock it.
When I updated the package to 1.4.0, I started getting NRE when I tried to get navdrawer.

The order of execution has changed.

v1.3.1
1 MainActivity.onCreate start
2 MainActivity.onCreate call setContentView(R.layout.activity_main)
3 MainActivity.onCreate executes the rest of the code
4 MainActivity.onCreate finish
...
5 LoginFragment.onCreateView execute

v1.4.0
1 MainActivity.onCreate start
2 MainActivity.onCreate call setContentView(R.layout.activity_main)
3 LoginFragment.onCreateView execute (NRE becouse nav is not initialized yet)
4 MainActivity.onCreate executes the rest of the code
5 MainActivity.onCreate finish

I am begginer in android development. And so the question. Is this a bug of ObservableCollections or am I misunderstanding the order of execution and did the wrong authorization?