jetpack Compose row/column onClick navigation-CodePudding

Please bear with me I don't know how to properly phase my question, but I'll try my best.

I made the screen above by putting muliple composables together.

I gave the composable carrying the row an onClick function;

@Composable
fun MenuGrid(
    modifier: Modifier = Modifier,
    onMenuCardClick: (Int) -> Unit = {},
) {
    LazyHorizontalGrid(
        rows = GridCells.Fixed(3),
        contentPadding = PaddingValues(horizontal = 16.dp),
        horizontalArrangement = Arrangement.spacedBy(8.dp),
        verticalArrangement = Arrangement.spacedBy(8.dp),
        modifier = modifier
            .height(200.dp)
    ) {
        items(MenuData) { item ->
            MenuCard(
                drawable = item.drawable,
                text = item.text,
                modifier = Modifier
                    .height(56.dp)
                    .clickable { onMenuCardClick(item.drawable   item.text) }
            )
        }
    }
}

Like I said earlier I put multiple composables together, to form the image above. I arranged the multiple composables in a composable, I called MenuContentScreen;

@Composable
fun MenuContentScreen(modifier: Modifier = Modifier) {
    Column(
        modifier
            .verticalScroll(rememberScrollState())
            .padding(vertical = 16.dp)) {
        MenuQuote()
        MenuContentSection(title = R.string.favorite_collections) {
            MenuGrid()
        }
    }
}

Then I referenced/called the MenuContentScreen on the main Composable of that screen MenuScreen. (The one defined in NavHost)

@Composable
fun MenuScreen() {
    MenuContentScreen(Modifier.padding())

}

Which is where the problem is, since the onClick function was defined in another composable, I can't use the onClick function for the MenuScreen;

So MY QUESTION is there a way I can link the onClick function on MenuGrid to MenuScreen, maybe creating an parameter on MenuScreen and assigning it to the MenuGrid's onClick function (which I have tried and got val cannot be assigned), or Any thing at all.

I will greatly appreciate any help. I have been on this like forever. No information is too small please.

Thanks in Advance.

CodePudding user response：

You need to carry onClick lambda till your MenuScreen Composable such as

@Composable
fun MenuContentScreen(modifier: Modifier = Modifier,
    onMenuCardClick: () -> Unit
) {
    Column(
        modifier
            .verticalScroll(rememberScrollState())
            .padding(vertical = 16.dp)) {
        MenuQuote()
        MenuContentSection(title = R.string.favorite_collections) {
            MenuGrid(){
               onMenuCardClick()
        }
    }
}

@Composable
fun MenuScreen(
     onMenuCardClick: () -> Unit
) {
    MenuContentScreen(Modifier.padding(), onClick= onMenuCardClick)

}

And in you nav graph without passing navController to MenuScreen

call

MenuContentScreen {
  navController.navigate()
}