Below is my code which has 3 Fragment classes each embedded with each of the 3 tabs on ViewPager. I have a menu option. As shown in the onOptionsItemSelected(), by selecting an option, I need to update the fragment that is currently visible. To update that I have to call a method which is in … Read more
I was working on fragments and came across two things Activity and FragmentActivity which are used several times. I want to know that is there any difference between these two, because when I changed Activity with FragmentActivity, it had no effect on the app. 2 Answers 2
I am using The new Navigation Architecture Component in android and I am stuck in clearing the navigation stack after moving to a new fragment. Example: I am in the loginFragment and I want this fragment to be cleared from the stack when I navigate to the home fragment so that the user will not … Read more
I am using DialogFragments for a number of things: choosing item from list, entering text. What is the best way to return a value (i.e. a string or an item from a list) back to the calling activity/fragment? Currently I am making the calling activity implement DismissListener and giving the DialogFragment a reference to the … Read more
Say I have an activity that has fragments added programmatically: private void animateToFragment(Fragment newFragment, String tag) { FragmentTransaction ft = getFragmentManager().beginTransaction(); ft.replace(R.id.fragment_container, newFragment, tag); ft.addToBackStack(null); ft.commit(); } What is the best way to return to the previous fragment that was visible? I found Trigger back-button functionality on button click in Android but I’m thinking simulating … Read more
I’m trying to follow data-binding example from official google doc https://developer.android.com/tools/data-binding/guide.html except that I’m trying to apply data-biding to a fragment, not an activity. the error I’m currently getting when compiling is Error:(37, 27) No resource type specified (at ‘text’ with value ‘@{marsdata.martianSols}. onCreate for fragment looks like this: @Override public void onCreate(@Nullable Bundle savedInstanceState) … Read more
I’m using a ViewPager together with a FragmentStatePagerAdapter to host three different fragments: [Fragment1] [Fragment2] [Fragment3] When I want to get Fragment1 from the ViewPager in the FragmentActivity. What is the problem, and how do I fix it? 23 Answers 23
I want to add a Fragment to an Activity that implements its layout programmatically. I looked over the Fragment documentation but there aren’t many examples describing what I need. Here is the type of code I tried to write: public class DebugExampleTwo extends Activity { private ExampleTwoFragment mFragment; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); … Read more
Google recommends that we use DialogFragment instead of a simple Dialog by using Fragments API, but it is absurd to use an isolated DialogFragment for a simple Yes-No confirmation message box. What is the best practice in this case? 10 Answers 10
I ported my Android app to honeycomb and I did a big refactor in order to use fragments. In my previous version, when I pressed the Home button I used to do a ACTIVITY_CLEAR_TOP in order to reset the back stack. Now my app is just a single Activity with multiple fragments, so when I … Read more
