Android - How to pass data from activity to fragment? [duplicate]

Answer 1

try this one in Activity

fragment=new PdfFragment();
if (fragment != null) {
    FragmentManager fragmentManager = getFragmentManager();

        Bundle bundle = new Bundle();
        bundle.putString("pdf", Pdf);
    bundle.putString("flag", "0");
    fragment.setArguments(bundle);

    fragmentManager.beginTransaction().replace(R.id.container, fragment).addToBackStack(null).commit();
}

and in fragment

     Pdf = getArguments().getString("pdf");

Answer 2

Fragment object is just like other objects.Like String , you can invoke methods of string object, str.charAt(0) ,str.toUpperCase() etc. Just create a function in fragment, put your code there and call the function along with values

Inside Activity {
  fragDemoObject.doWhatYouWant("this is passed as string object to fragment");
}

Inside FragmentDemo{
  void doWhatYouWant(String input){
     System.out.println(input);
    // do what else you want to do with code
  }

}