Sub-sampling¶

For displaying large images that may not fit into memory, ZoomableImage automatically divides them into tiles so that they can be loaded lazily.

If ZoomableImage can't be used or if sub-sampling of images is always desired, you could potentially use SubSamplingImage() directly.

implementation("me.saket.telephoto:sub-sampling-image:0.14.0")

val zoomableState = rememberZoomableState()
val imageState = rememberSubSamplingImageState(
  zoomableState = zoomableState,
  imageSource = SubSamplingImageSource.asset("fox.jpg")
)

SubSamplingImage(
  modifier = Modifier
    .fillMaxSize()
    .zoomable(zoomableState),
  state = imageState,
  contentDescription = …,
)

SubSamplingImage() is an adaptation of the excellent subsampling-scale-image-view by Dave Morrissey.