Fullscreen World Map with without showing background grids on vertical scroll up or down in Android

[NishanKhadka]

I want to achieve something similar to the images 1 and 2, a full screen world map with fixed min zoom/scale level. But with Esri SDK I find the MapView  scrolling beyond the actual map and show the background grid. How can I achieve something like that?
Thanks!

[NishanKhadka]

Still same results. Maybe I am setting the envelope for the maxExtent wrong. Any guidance would help.

[ChanganShi1]

You may give a try like this,

map.loadStatus.collect {
if (it == LoadStatus.Loaded) {
val envelope = map.basemap.value?.baseLayers?.get(0)?.fullExtent
if (envelope != null) {
map.maxExtent = Envelope(envelope.center, envelope.width /4.0, envelope.height/4.0)
}
}
}

[NishanKhadka]

I would get a full screen map with this, but still the following issues exist:

•  WrapAronud mode - continuous panning across the international date line is disabled. That's what maxExtent property is supposed to do I believe.
  
  
• maxExtent scaling itself with zoom levels has issues. When zoomed in, I cannot access the parts of the map close to the map boundaries. And this keeps on increasing as I zoom in further.