Stack Overflow
Stack Overflow

Questions tagged [fragmentmanager]

FragmentManager is an interface for interacting with Fragment objects inside an Activity in Android. While the FragmentManager API was introduced in HONEYCOMB, a version of the API at is also available for use on older platforms through FragmentActivity. For more information about using fragments, read the Fragments developer guide.

700 questions
211
votes
22 answers

How can I access getSupportFragmentManager() in a fragment?

I have a FragmentActivity and I want to use a map fragment within it. I'm having a problem getting the support fragment manager to access it. if (googleMap == null) { googleMap = ((SupportMapFragment) getSupportFragmentManager() …
DjP
  • 4,537
  • 2
  • 25
  • 34
105
votes
7 answers

FragmentPagerAdapter deprecated

Since API 27 FragmentPagerAdapter is deprecated. What's the best alternative to use for this? In my case, I understand something like super(fragmentManager, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT) would need to be used, but I don't know where within…
wbk727
  • 8,017
  • 12
  • 61
  • 125
66
votes
3 answers

Android FragmentManager BackStackRecord.run throwing NullPointerException

I sometimes get the following exception when working with Fragments: FATAL EXCEPTION: main java.lang.NullPointerException at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:591) at…
NickL
  • 4,258
  • 2
  • 21
  • 38
65
votes
3 answers

What does FragmentManager and FragmentTransaction exactly do?

I have simple code below FragmentManager fragmentManager = getFragmentManager(); FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction(); fragmentTransaction.replace(R.id.fragment_container,…
Alireza.Heidari
  • 737
  • 1
  • 8
  • 11
64
votes
3 answers

onAttach() not called in Fragment

My Fragment doesn't call onAttach(context) method when it launched from AppCompatActivity. Fragment creating in XML:
winston
  • 875
  • 1
  • 8
  • 15
44
votes
8 answers

Checking if state is saved before committing a FragmentTransaction

I sometimes see the following stacktrace for a commit that can happen when the user isn't looking at the activity (after state's been saved): java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState at…
hwrdprkns
  • 7,525
  • 12
  • 48
  • 69
41
votes
2 answers

Cannot resolve method 'show(android.support.v4.app.FragmentManager, java.lang.String)

For some reason when I try to show a Dialog I get an error from dialog.show(fm, DIALOG_DATE); saying Cannot resolve method 'show(android.support.v4.app.FragmentManager, java.lang.String)' Why can't it resolve the method?…
MasterProgrammer200
  • 1,021
  • 2
  • 17
  • 29
35
votes
5 answers

An invisible layout behind the fragment is getting clicked:

I have created several fragments and I add the first fragment the following way: mainFragment = (MainFragment) MainFragment.create(); getSupportFragmentManager().beginTransaction() .setCustomAnimations(R.anim.slide_in_right,…
Emil Adz
  • 40,709
  • 36
  • 140
  • 187
26
votes
8 answers

getBackStackEntryCount() always returns 0 even after adding addToBackStack and executePendingTransactions()

I have two activities A and B. Activity A has a mapFragment and I am adding it to backstack. When I come back from to Actvity A from B, I want the fragment to show up in same state as I left it. But getFragmentManager().getBackStackEntryCount() is…
user3555350
  • 261
  • 1
  • 3
  • 4
24
votes
11 answers

Backstack management : Restarter must be created only during owner's initialization stage

I am using a bottom navigation bar in my MainActivity to handle some fragments. This is the code used for switching between them: private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item -> if…
Gabi
  • 667
  • 1
  • 7
  • 17
23
votes
3 answers

Passing data back to previous fragment from current fragment

I am Using Navigation Drawer in my app. I have one MainActivity and rest of are Fragments. So the issue is Suppose i have three fragments like A,B,C. Now in A i have one button and i am sending data from A>B. For example putSring("datafrom…
chris
  • 699
  • 4
  • 12
  • 35
23
votes
1 answer

Proper use of sub sub fragments with (Child)FragmentManager

How do I properly use Fragments in Fragments? My (simplified) use case is following, I have an activity with a layout fragment and this fragment theirself contains a sub fragment... all fragments are added manually to their…
prom85
  • 16,896
  • 17
  • 122
  • 242
21
votes
5 answers

Ignoring navigate() call: FragmentManager has already saved its state

I'm using navigation in MainActivity, then I start SecondActivity (for result). After finish of SecondActivity I would like to continue with navigation in MainActivity, but FragmentManager has saved his state already. On…
Francis
  • 6,788
  • 5
  • 47
  • 64
21
votes
6 answers

Fragment must be a public static class to be properly recreated from instance state

After updating to the latest support repository, compile 'com.android.support:appcompat-v7:24.2.0' compile 'com.android.support:design:24.2.0' compile 'com.android.support:percent:24.2.0' compile 'com.android.support:recyclerview-v7:24.2.0' I'm…
Falling Into Infinity
  • 697
  • 3
  • 13
  • 34
18
votes
5 answers

java.lang.IllegalStateException: FragmentManager has been destroyed

In activity onResume method I call volley request, which is getting list of items and then loads them to ListFragment inside this activity. When I enter activity for the first time everything is working correctly, but when I re-enter activity the…
Sergey Roytman
  • 303
  • 1
  • 2
  • 9
1
2 3
…
46 47