Android set height and width of Custom view programmatically
If you know the exact size of the view, just use setLayoutParams():
graphView.setLayoutParams(new LayoutParams(width, height));Or in Kotlin:
graphView.layoutParams = LayoutParams(width, height)However, if you need a more flexible approach you can override onMeasure() to measure the view more precisely depending on the space available and layout constraints (wrap_content, match_parent, or a fixed size). You can find more details about onMeasure() in the android docs.