How do I close `AlertDialog`? I want to implement an Exit Dialog but it is neither closing when `onC...

# compose

[pavi2410]

How do I close AlertDialog? I want to implement an Exit Dialog but it is neither closing when onCloseRequest is called nor when confirmButton is clicked

@Composable
private fun ExitDialog() {
    val (show, setShow) = state { true }
    if (show) {
        AlertDialog(
            text = {
                Text("Do you want to really quit???")
            },
            confirmButton = {
                Button(modifier = Modifier.padding(16.dp), onClick = { setShow(false) }) {
                    Text(text = "OK")
                }
            },
            onCloseRequest = { setShow(false) }
        )
    } else {
        return
    }
}

[henrikhorbovyi]

I know it can be the same... but try to use value property. It worked for me 🤔

[Zach Klippenstein (he/him) [MOD]]

Are you both using dev12? I’ve had this work for me in the past too I’m pretty sure, but I haven’t tried with dev12.

[pavi2410]

Yes, I'm using dev12

[henrikhorbovyi]

I'm using dev12 as well, but I never faced ths problem

[henrikhorbovyi]

[henrikhorbovyi]

That's my implementation and it works.

[pavi2410]

@Composable
private fun ExitDialog() {
    val show = state { true }
    if (show.value) {
        AlertDialog(
            text = {
                Text("Do you want to really quit???")
            },
            confirmButton = {
                Button(modifier = Modifier.padding(16.dp), onClick = { show.value = false }) {
                    Text(text = "OK")
                }
            },
            onCloseRequest = { show.value = false }
        )
    }
}

This still doesn't work for me.

@henrikhorbovyi I see that in your code, the initial value for the alertIsVisible state is false. I wonder how it is set to true in order to show AlertDialog?

[henrikhorbovyi]

aaah

[henrikhorbovyi]

okay

[henrikhorbovyi]

[henrikhorbovyi]

I have a button that changes that state

[pavi2410]

Are state variables accessible outside the scope?

[henrikhorbovyi]

Nope

[henrikhorbovyi]

[henrikhorbovyi]

They are in the same function

[pavi2410]

I'm using the ExitDialog like this

@Composable
fun Navigator(isBackPressed: MutableState<Boolean>) {
    val (currentScreen, setCurrentScreen) = state { Screen.Home }

    if (isBackPressed.value) {
        if (currentScreen == Screen.Home) {
            ExitDialog()
        } else {
            setCurrentScreen(Screen.Home)
        }
        isBackPressed.value = false
    }

    when (currentScreen) {
        Screen.Home -> Home(setCurrentScreen)
        Screen.ListScroller -> ListScroller()
        Screen.MyScreen -> MyScreen("Android Operating System")
        Screen.MarkDownParser -> MarkDownParser()
    }
}

[pavi2410]

Is there any problem with this piece of code?

[Zach Klippenstein (he/him) [MOD]]

And that actually shows the dialog? It looks like it should never show it, because as soon as you add the dialog to the composition you clear the back flag and remove it from the composition.