相关疑难解决方法(0)

我想要一个包含行列的框，其中填充了更多子项，这些子项接受单击（“CL”）和长按（“LO”）以进行缩放和拖动。使用pointerInputwithdetectTransforgestures我可以根据需要改变子布局。

var zoom by remember { mutableStateOf(1f) }
var offset by remember { mutableStateOf(Offset.Zero) }

val outer = (1..60).toList().chunked(6)

Box(Modifier
.fillMaxSize()
.pointerInput(Unit) {

    //zoom in/out and move around
    detectTransformGestures { gestureCentroid, gesturePan, gestureZoom, _ ->
        val oldScale = zoom
        val newScale = (zoom * gestureZoom).coerceIn(0.5f..5f)
        offset =
            (offset + gestureCentroid / oldScale) - (gestureCentroid / newScale + gesturePan / oldScale)
        zoom = newScale
    }
}) {

    Box(
        Modifier

            .graphicsLayer {
                translationX = -offset.x * zoom
                translationY …