ViewPager in Android - When is the destroyItem(ViewGroup container , int position) method called? -


in viewpager set adapter follows

myviewpageradapter = new myviewpageradapter(); viewpager.setadapter(myviewpageradapter);

this myviewpageradapter class

public class myviewpageradapter extends pageradapter { private layoutinflater layoutinflater;  public myviewpageradapter() {}  @override public object instantiateitem(viewgroup container, int position) { }  @override public int getcount() {  }  @override public boolean isviewfromobject(view view, object obj) {  }  @override public void destroyitem(viewgroup container, int position, object object) { } }

what happens when call empty contructor in myviewpageradapter? methods called?

no methods called.

a constructor used create new object of class myviewpageradapter , because in case it's default constructor (empty body) , can skip writing it.

ref: https://docs.oracle.com/javase/specs/jls/se8/html/jls-8.html#jls-8.8.9


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