onSizeChanged getting called with every recomposition-CodePudding

I'm working on compose UI-based android app. I need to get the size of composable and do get size on every real change. I checked the base code of onSizeChanged. onSizeChanged creates modifier extending OnRemeasuredModifier and stores previous size but after every recomposition, the previous gets reset and this cause infinite calls of onSizeChanged. I tried composed but that didn't help. Here is a sample code:

var counter by remember { mutableStateOf(0) }
LaunchedEffect(key1 = counter, block = {
    delay(1000)
    counter  
})
Box(
    modifier = Modifier.fillMaxSize(),
    contentAlignment = Alignment.Center
) {
    Text(
        modifier = Modifier
            .onSizeChanged {
                it
            }
            .composed {
                Modifier.onSizeChanged {
                    it
                }
            },
        text = "Hello, $counter!",
        color = Color.Black
    )
  }
}

CodePudding user response：

The solution I implemented is to remember onSizeChanged Modifier to save the previous size. but I'm not certain that this is the correct way.

var counter by remember { mutableStateOf(0) }
LaunchedEffect(key1 = counter, block = {
    delay(1000)
    counter  
})
Box(
    modifier = Modifier.fillMaxSize(),
    contentAlignment = Alignment.Center
) {
    Text(
        modifier = Modifier
            .onSizeChanged {
                it
            }
            .composed {
                Modifier.onSizeChanged {
                    it
                }
            }
            .remembered {
                Modifier.onSizeChanged {
                    it
                }
            },
        text = "Hello, $counter!",
        color = Color.Black
    )
  }
}

I tried composed but that didn't help. So I created the remembered function:

@Composable
fun Modifier.remembered(modifier: () -> Modifier): Modifier {
    val rememberedModifier = remember {
        modifier()
    }
    return then(rememberedModifier)
}