Resolved: Drag Composable only inside given boundries with Jetpack Compose

Question:

so I have a black box (rectangle) inside another box (boundary) and the rectangle is set as draggable
But now I can drag the rectangle around the whole window, but I want that if the rectangle “leaves” the boundary it should disappear behind it. Is there another modifier I can use for it?
Here a bit context:
My code looks like this:

MaterialTheme {
        Box(modifier = Modifier
            .size(500f.dp)
            .border(2f.dp, Color.Black, RectangleShape)
        ){
            Box(modifier = Modifier
                .offset { IntOffset(offsetX.roundToInt(), 0) }
                .draggable(
                    orientation = Orientation.Horizontal,
                    state = rememberDraggableState { delta ->
                        offsetX += delta
                    }
                )
                .background(Color.Blue)
                .size(100f.dp)
            ){
                Text("Hello")
            }
        }
    }

When I drag the rectangle outside the boundary it looks like this:

But it should more like this:

Answer:

On the composable whose contents you want to clip add the clipToBounds() modifier.

Box(modifier = Modifier
    .size(500f.dp)
    .border(2f.dp, Color.Black, RectangleShape)
    .clipToBounds()
)

If you have better answer, please add a comment about this, thank you!

Resolved: Drag Composable only inside given boundries with Jetpack Compose

Resolved: how to get and read an xml file in a zip file using xml.etree

Resolved: The ‘Access-Control-Allow-Origin’ header contains multiple values ‘, ’, but only one is allowed. cors error not resolving

Resolved: SQLSTATE[42S02]: Base table or view not found: 1146 Table ‘crm.email’ doesn’t exist (Connection: mysql, SQL: select count(*) as aggregate from `email`

Leave A Reply