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How to add compose modifiers based on other surrounding views?

Time:11-20

I am unable to get the expected results as shown in the picture below. There are 2 rules to follow

  1. The horizontal line should not continue till the bottom text. Instead, it should just be the height of the right text (multiline).
  2. Bottom text should align with the Right Text from the left side.

Current Incorrect Snippet

@Composable
fun Sample() {
    Row(
        modifier = Modifier
            .height(IntrinsicSize.Min)
            .padding(10.dp)
    ) {
        Text("Left Text")
        
        Divider(
            Modifier
                .padding(horizontal = 10.dp)
                .fillMaxHeight()
                .width(4.dp),
            color = Color.Black
        )

        Column {
            Text("Right Looooong Text")
            Text("Bottom Text")
        }
    }
}

Visual Representation

Visual Representation

CodePudding user response:

You can use the modifier extension .onSizeChanged{}, which returns its composable's size in Int, to set the vertical divider's height as follows:

var divHeight: Int = 0 // Must be initialized

Row() {
    Text(text = "Left Text")

    Divider(
        modifier = Modifier
                .padding(horizontal = 10.dp)
                .width(4.dp)
                .height(divHeight.dp) // .dp converts measurement from Int to Dp
    )

    Column {
        Text(
            modifier = Modifier
                    .onSizeChanged { divHeight = it.height },
            text = "Right Looooong Text"
        )
        Text(text = "Bottom Text")
    }
}

Hope you found this helpful!

CodePudding user response:

You can achieve this in various ways including

Option 1: You can either redesign your Composable

Option 2: Apply Modifier.layoutId() your Composables then set their position relative to each other using Layout and getting measurables via this ids then placing them based on one that they depend on.

I post only the option one which is the easiest one.

@Composable
fun Sample(horizontalPadding: Dp = 10.dp, dividerWidth: Dp = 4.dp) {
    Row(
        modifier = Modifier.padding(10.dp)
    ) {
        Text("Left Text")

        Column {
            Row(modifier = Modifier.height(IntrinsicSize.Min)) {
                Divider(
                    Modifier
                        .padding(horizontal = horizontalPadding)
                        .fillMaxHeight()
                        .width(dividerWidth),
                    color = Color.Black
                )

                Text("Right Loooooooooooooooooooong Text")
            }

            Text(
                "Bottom Text",
                modifier = Modifier.offset(x = horizontalPadding * 2   dividerWidth)
            )
        }
    }
}

Result

enter image description here

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