I am using material calendarview which blocks 3/4 of screen height. I customized screen height but still it have some padding between day tiles and height of calendarview.
Below i attached a screenshot how is looking now:
Finally i found, after the long time effort work on libs at onMeasure()
method.
measuredHeight = (int)(measuredHeight/1.5);
setMeasuredDimension(
//We clamp inline because we want to use un-clamped versions on the children
clampSize(measuredWidth, widthMeasureSpec),
clampSize(measuredHeight, heightMeasureSpec));