java - New Tag Collected Dialog appears when app tries to read NFC payload from the tag -

i'm trying understand nfc concept creating sample android app. when try read payload tag, dialog appears title new tag collected , tag payload in it. not want dialog appear. want print out toast instead. can me?

public class mainactivity extends appcompatactivity { nfcadapter nfcadapter; @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      nfcadapter = nfcadapter.getdefaultadapter(this);     if(nfcadapter!=null && nfcadapter.isenabled())     {         toast.maketext(this, "nfc detected",toast.length_long).show();     }     else     {         finish();         toast.maketext(this, "nfc not detected",toast.length_long).show();     } } @override protected void onnewintent(intent intent) {     toast.maketext(this,"new nfc tag found!",toast.length_long).show();           parcelable[] parcelables = intent.getparcelablearrayextra(nfcadapter.extra_ndef_messages);         readtextmessage((ndefmessage)parcelables[0]);         super.onnewintent(intent);  }   @override protected void onresume() {     super.onresume();      intent intent = getintent();     string action = intent.getaction();      if (nfcadapter.action_tag_discovered.equals(action)) {         toast.maketext(this,                 "onresume() - action_tag_discovered",                 toast.length_short).show();          tag tag = intent.getparcelableextra(nfcadapter.extra_tag);         if(tag == null){             toast.maketext(this,"null",toast.length_long);         }else{             string taginfo = tag.tostring();              toast.maketext(this,taginfo,toast.length_long);         }     }else{         toast.maketext(this,                 "onresume() : " + action,                 toast.length_short).show();     }  } @override protected void onpause() {     nfcadapter.disableforegrounddispatch(this);     super.onpause(); } 

}