Pavya questions

Pavya answers

• java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getImportantForAccessibility()' on a null object reference
• How to add N-level of Expandable menu in NavigationView android?
• NestedScrollView incomplete scroll
• How to put views on top of an ImageView, in relation to the ImageView's content size?
• Swipe to refresh Icon is not shown properly
• Android Studio annoying popup window for layout_width and layout_height