To align the rectangle drawn by Jetpack Compose MLKit to an object, you need to use the position and size properties of the rectangle. The position property specifies the starting coordinates of the rectangle, while the size property specifies the width and height of the rectangle.
To align the rectangle to an object, you need to calculate the position and size of the rectangle based on the position and size of the object. Here's an example code snippet that demonstrates how you can align the rectangle to an object:
BoxWithConstraints { val objectPosition = Offset(50f, 50f) // example object position val objectSize = Size(100f, 100f) // example object size val rectangleWidth = 50f // example rectangle width val rectangleHeight = 50f // example rectangle height val rectanglePosition = Offset( objectPosition.x + (objectSize.width - rectangleWidth) / 2, objectPosition.y + (objectSize.height - rectangleHeight) / 2 ) Box( Modifier .fillMaxSize() .drawBehind { drawRect(Color.Red, topLeft = rectanglePosition, size = Size(rectangleWidth, rectangleHeight)) } ) }
In this code, we first define the position and size of the object using the Offset
and Size
classes. We then define the width and height of the rectangle.
To align the rectangle to the object, we calculate the position of the rectangle using the Offset
class. We subtract the rectangle size from the object size and divide the result by 2 to get the offset of the rectangle from the object's top left corner.
Finally, we draw the rectangle using the drawRect
function with the Color.Red
color and the calculated position and size. We use the fillMaxSize
modifier to fill the entire screen with the Box
component.
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Asked: 2023-07-02 02:17:28 +0000
Seen: 14 times
Last updated: Jul 02 '23