android - I unable to pass the bundle from the MainActivity to the SignFragment. the fragment is in viewPager -

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i unable pass bundle mainactivity signfragment. fragment in viewpager.

i null reference.

here pager using. how can send bundle activity holding viewpager fragment. , how access bundle in fragment.

viewpager= (viewpager)findviewbyid(r.id.pager);         final pageradapter adapter=new tabpageradapter(getsupportfragmentmanager(),tablayout.gettabcount());  viewpager.setadapter(adapter); viewpager.addonpagechangelistener(new tablayout.tablayoutonpagechangelistener(tablayout));


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