android-fragments

From Activity you send data with intent as: Bundle bundle = new Bundle(); bundle.putString(“edttext”, “From Activity”); // set Fragmentclass Arguments Fragmentclass fragobj = new Fragmentclass(); fragobj.setArguments(bundle); and in Fragment onCreateView method: @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { String strtext = getArguments().getString(“edttext”); return inflater.inflate(R.layout.fragment, container, false); }

First of all, check out my post on retained Fragments. It might help. Now to answer your questions: Does the fragment also retain its view state, or will this be recreated on configuration change – what exactly is “retained”? Yes, the Fragment‘s state will be retained across the configuration change. Specifically, “retained” means that the … Read more

When you are transitioning between Fragments, call addToBackStack() as part of your FragmentTransaction: FragmentTransaction tx = fragmentManager.beginTransation(); tx.replace( R.id.fragment, new MyFragment() ).addToBackStack( “tag” ).commit(); If you require more detailed control (i.e. when some Fragments are visible, you want to suppress the back key) you can set an OnKeyListener on the parent view of your fragment: … Read more

From fragment to activty: ((YourActivityClassName)getActivity()).yourPublicMethod(); From activity to fragment: FragmentManager fm = getSupportFragmentManager(); //if you added fragment via layout xml YourFragmentClass fragment = (YourFragmentClass)fm.findFragmentById(R.id.your_fragment_id); fragment.yourPublicMethod(); If you added fragment via code and used a tag string when you added your fragment, use findFragmentByTag instead: YourFragmentClass fragment = (YourFragmentClass)fm.findFragmentByTag(“yourTag”);