Android 协同程序视图模型执行

我有一个视图模型，它保存一些实时数据（hasExpanded），还有一个在onViewCreated中调用的协程，但协程总是首先执行，例如：

@ExperimentalCoroutinesApi
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    setActionBar()
    super.onViewCreated(view, savedInstanceState)
    observeHasExpandedState()
    viewLifecycleOwner.lifecycleScope.launch {
        Log.d("DETAIL", "launch")
        if (!hasExpanded){
            Log.d("DETAIL", "!hasExpanded")
            Log.d("DETAIL", "setImageView started")
            setImageView(imageUrl) // waits for a callback to complete
            Log.d("DETAIL", "setImageView finished")
            Log.d("DETAIL", "handleEnterAnimation started")
            handleEnterAnimation() // waits for animation to complete
            Log.d("DETAIL", "handleEnterAnimation finished")
            viewModel.setRevealAnimationExpandedState(true)
        }
        observeSomeOtherData()
    }
}



private fun observeHasExpandedState() {
    viewModel.revealAnimationExpanded.observe(
        viewLifecycleOwner,
        Observer { hasExpanded ->
            Log.d("DETAIL", "hasExpanded changed - $hasExpanded")
            this.hasExpanded = hasExpanded
        }
    )
}

从这里我希望D/DETAIL:hasExpanded changed-false首先被打印出来，但是上面的代码将打印类似这样的内容

    D/DETAIL: launch
    D/DETAIL: !hasExpanded
    D/DETAIL: setImageView started
    D/DETAIL: hasExpanded changed - false # (I want to have this called first)
    D/DETAIL: setImageView started
    D/DETAIL: setImageView finished
    D/DETAIL: handleEnterAnimation started
    D/DETAIL: handleEnterAnimation finished
    D/DETAIL: hasExpanded changed - true
    D/DETAIL: observeSomeOtherData

我可以通过使用savedInstanceState或SharedReference，甚至从view model observe方法调用协程来解决这个问题，但是这段代码使用的是新的视图模型和saved state，所以我真的不想求助于这些选项，我只是想知道是否有办法按照我想要的顺序调用它

此外，我猜这可能与视图模型初始化数据所需的时间有关，也可能是因为我对视图模型使用viewLifecycleOwner，而对协同程序使用lifecycleScope.launch，即dispatchers.Main.immediate，但如果有人对为什么会发生这种情况有明确的解释，我将不胜感激

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我试着移动订单，调用onCreateView和onCreate都没有用

LMAO当我发布此消息时，我将我的协同程序更改为使用Dispatchers.Main，它成功了lol