当 "remember" 值更改时，Compose 的 "AndroidView" 的工厂方法不会重新调用

Question

我的 UI 上有一个 AndroidView，我正在使用工厂范围创建自定义视图 class。我的 remember 值高于我的 android 视图，该值随用户操作而改变。

    val isActive = remember { mutableStateOf(true) }

    AndroidView(
        modifier = Modifier
            .align(Alignment.CenterStart)
            .fillMaxWidth()
            .wrapContentHeight(),
        factory = {
            .....
            if (isActive) {
                ...... // DOESN'T RECALL
            }
            .......
            CustomViewClass().rootView
        })

    if (isActive) {
        //WORKS FINE WHEN VALUE CHANGE
    } else {
        //WORKS FINE WHEN VALUE CHANGE
    }

在工厂范围内，我尝试使用 isActive 值来配置 AndroidView，但当 isActive 值更改时它不会触发。

在工厂范围之外，一切正常。

有什么方法可以通知视图或任何解决方法吗？

compose_version = '1.1.1'

Answer 1

如 Docs、
使用 update 来处理状态变化。

update = { view ->
        // View's been inflated or state read in this block has been updated
        // Add logic here if necessary

        // As selectedItem is read here, AndroidView will recompose
        // whenever the state changes
        // Example of Compose -> View communication
        view.coordinator.selectedItem = selectedItem.value
}

完整代码

// Adds view to Compose
AndroidView(
    modifier = Modifier.fillMaxSize(), // Occupy the max size in the Compose UI tree
    factory = { context ->
        // Creates custom view
        CustomView(context).apply {
            // Sets up listeners for View -> Compose communication
            myView.setOnClickListener {
                selectedItem.value = 1
            }
        }
    },
    update = { view ->
        // View's been inflated or state read in this block has been updated
        // Add logic here if necessary

        // As selectedItem is read here, AndroidView will recompose
        // whenever the state changes
        // Example of Compose -> View communication
        view.coordinator.selectedItem = selectedItem.value
    }
)

当 "remember" 值更改时，Compose 的 "AndroidView" 的工厂方法不会重新调用

Compose's "AndroidView"'s factory method doesn't recall when "remember" value change

android

kotlin

android-jetpack

android-jetpack-compose