Onsaveinstancestate not called fragment. Save Current Fragment in onSaveInstanceState.

Onsaveinstancestate not called fragment IllegalStateException: Can not perform this action after onSaveInstanceState" (see stack trace on below), all from Samsung device(SM-N9003, GT-I9305, GT-N7100etc. try this: Fragment loses listener at orientation change. Can not perform this action after onSaveInstanceState when Dialog fragment is dismissed. So essentially onCreate -> onSaveInstanceState -> onDestroy Yes when Activity will be stopped it will not show dialog, make sense – Eslam Ahmad. ANDROID - java. To use ORMLite in your project, add this line in your gradle. I want to save certain state of the activity and also of the fragments, in order to restore if the activity, or the fragments, are destroyed. (Bundle outState) may not be called for a long time. Avoid Fragment transaction until onRestoreInstanceState or onResume * gets called But if you still have issues with this you MUST also read @AlexLockwood 's blog : Fragment Transactions & Activity State Loss. Using onSaveInstanceState issue. 2 ANDROID - java. id. I am working with CustomView which extends some Android view like FrameLayout. commit() after state is saved then this java. onSaveInstanceState(Bundle) won't be called in this situation). You want to show a login fragment to the user when an API call returns with a 403 (forbidden) response. getActivity(). I then realized I use onSaveInstanceState only in the fragment (and onCreateView to check for savedInstanceState), not in the activity. This causes my app to crash naturally, since the save can't be made. Both activities onDestroy will be called. onSaveInstanceState() is not gauranted to be called. 1k次。这篇文章主要介绍了Android中用onSaveInstanceState保存Fragment状态的方法,onSaveInstanceState可以将数据保存在Fragment或Activity中,需要的朋友可以参考下在Fragment里面，利用onSaveInstanceState保存数据，并可在onActivityCreated里面恢复数据。public void on_savedinstancestate保存了上次的fragment In my activity I am not using any fragment. It's not necessarily tied to fragment transaction but also other methods like onBackPressed(). ``` The only way I see around that is to avoid calling binding. have you create the OwnershipFragment but never attach to the window? if you extended from the support. onActivityCreated(savedInstanceState); Removing the call to super. It is the case for the parent activity, but not for the fragment I've added. Another thing you should check that the onCreate(): is called when you come back to the activity Is there a particular reason why "onSaveInstanceState" is not called when the "back button" is pressed? It makes sense to me that view state SHOULD be saved when I press the back button. if it is a Fragment, until its onDestroy was called and there was NO configuration change (device rotation). ” Look at this post: FragmentActivity onSaveInstanceState not onSaveInstanceState is not called because there is no reason to, when you navigate between fragments, the older fragment doesn't get destroyed till the OS need the space they use (low Memory). Android savedInstanceState return always null. Original idea is use onSaveInstanceState() to retain all members data, just like a regular Activity. Modified 5 years, 7 months ago. Note however: this method may be called at any time before onDestroy(). setRetainInstance() is the best way to achieve that without side effects. os. class. beginTransaction(); This problem will occur when onPostExecute() is called when the application is minimized, especially when onPostExecute() is called after the onSaveInstanceState() method of the activity is called. I do not use I have several fragments here and there's this one fragment where I want to save its state when I get back to it. onSaveInstanceState(android. This would ensure synchronous addition of your fragment and will keep the savedInstanceState as well. – Michael Eilers Smith. isChangingConfigurations() because onSaveInstanceState is called too if I turn off the screen, but in that case all the fragments just stay active and nothing has to be changed. FragmentActivity onSaveInstanceState not getting called. btw, this usually occurs in a asynchronous callback. If you want to save the data while changing the configuration then you have call the super method of onSaveInstanceState(). E. The implementation of dialog. I load a fragment(eg:: Fragment-A) to the container, and in onSaveInstanceState event i am storing some data into bundlei use the code @Override public void onSaveInstanceState(Bundle outState) { super. If you want to persist Fragment's data, while navigating, you should use ViewModel. I don't know what is wron here. Rotating the screen and such restores the ListView state just fine but swiping I can't figure out how to restore the list properly. The usual solution is to use commitAllowingStateLoss() instead of commit(). Android View onSaveInstanceState not called. e. If the activity's onSaveInstanceState() method has been called, an IllegalStateException will be thrown when you try to show the dialog. home: onBackPressed(); return true; } return super. UPD: it's not opinion based question So now onSaveInstanceState of the MainFragment (which holds the ViewPager) I call destroyItem for each active fragment. headless fragment), give it a Tag: FragmentTransaction add (Fragment fragment, String tag) The fragment method onCreateView is always called with savedInstanceState null value. 21. we can store any info in bundle so we can get that info from bundle in some case like as Orientation Change. When This problem happens when a process tries to manipulate an Activity whose onStop() has been called. onDestroy()), the committable Fragment state will be lost (becase Fragment. onSaveInstanceState() is called sometime before onStop() for Android version below P. Is there a . I know three possible workarounds. There are many situations where a fragment may be mostly torn down (such as when placed on the back stack with no UI showing), but its state will not be saved until its That mean you commit() (show() in case of DialogFragment) fragment after onSaveInstanceState(). The following is the code of show() method of DialogFragment. The user clicks the home key before the process is finished but when I switch to another fragment, the method isn't even being called. And when access this fragment contained in thistab and when I rotate the device, the App does not Caution: onSaveInstanceState(Bundle) is called only when the fragment's host activity calls its own onSaveInstanceState(Bundle). onSaveInstanceState()) } In my Fragment, I can see the saved state exists after device rotation. FragmentB is created and FragmentA is replaced like this: FragmentTransaction ft = fragmentA. Because as per google docs: Note however: this method may be called at any time before onDestroy(). onSaveInstanceState not running. A FragmentTransaction can be added to the back stack via addToBackStack() . how you know that it I have seen a few similar questions about onSaveInstanceState not getting called for Fragment s, but in my case Fragment s work fine, it’s the main FragmentActivity 这有问题。. 1 "Can not perform this action after onSaveInstanceState" when fragment is replaced. Fragment. Using static will cause memory leak and there is no use of saving the state in onSaveInstanceState() and getting it back since, setRetainInstance() does that for you. 2. putInt("yourSpinner", spnSearchByCity. This includes commonly used methods such as AsyncTask#onPostExecute() and LoaderManager. Now i do not know how to In xml layout declare an Id for your fragment: android:id=@+id/<Id> If your fragments container View has an Id, use FragmentTransaction: FragmentTransaction add (int containerViewId, Fragment fragment) If your fragment is not associated with any View (e. The fragment is not destroyed but only detached from the current activity and attached to the new activity. override onSaveInstanceState and do not call super; but commitAllowingStateLoss can't be used on the first case. onSaveInstanceState is being called on device rotation for a fragment which has been replaced in a fragment transaction. Please help me. java. I think you should be performing this transaction in some async callback. Where should I put the onSaveInstanceState and There is a note in Android documentation on onSaveInstanceState fragments: This corresponds to Activity. getFragmentManager(). I don't exactly understand you, do you mean set the flag to true in onSaveInstanceState() and when the request returns then NOT commit the transaction if the flag is set because we are after onSaveInstanceState() which means that if i will commit it i will get the above exception. The problem is that my View did not restore it's state when the fragment is re-attached to the ViewPager/Activity. How to fix fragment transaction not showing view unless app enters and returns from background? Android's Fragment has some advantages and some disadvantages. onSaveInstanceState(Bundle)} and most of the discussion there applies here as well. There I did attach the onSaveInstanceState() is called immediately before the Activity has gone into the background. Please edit your question to be complete and precise about the scenario that concerns you. It shouldn't create scenarios like this. When the user rotates device I have an activity which contains 2 fragments. From the docs onSaveInstanceState is called ONLY if the Activitys onSaveInstanceState is getting called (which isn't called in my case). Previous response revised: See this and try to place your code in onResume() and invalidate the view or detach/attach the fragment as a quick solution but is not the best solution as Alex Lockwood said:. That means that your activity is stopping and you're adding your fragment in a state that cannot be saved. Ask Question Asked 5 years, 7 months ago. getSimpleName(); private EditText tvState; private Button btnGoto; private String txt = ""; private ListView I show a DialogFragment inside a button onClick event like below: public void onButtonClick() { myDialogFragment. So onStop() of LoginFragment will be called instead of onPause(). then call them in either MainActivity. onSaveInstanceState will not help. They have I am really confused with the internal state of a Fragment. selectedTabPosition) putParcelable("superState", super. If you want the fragments to look the same then you should perform your onSaveInstanceState in the Fragment itself. onSaveInstanceState() – SMR. } Note: This is just an example not best practice since you are creating new fragments every time in your switch case now anyways. When the button is clicked a dialog is created and an async process starts. All Android framework-providedviews have their own implementation of onSaveInstanceState() andonRestoreInstanceState(), so you To resolve this exception we will first make sure we encounter it everytime we commit a fragment. As a result, if Activity get killed and recreate later the fragment will not add to activity which is bad user experience. After rotating, Android will notice that it already created/saved a Since dialogfragment does not have option to commitAllowingStateLoss, the simplest solution I used was to set a flag when onSaveInstance is called and reset it on onCreate and onRestoreInstance. In Activity, the data of Fragment instance is saved by onSaveInstanceState, The onSaveInstanceState() callback in the View system, rememberSaveable in Jetpack Compose, and SavedStateHandle in ViewModels store data needed to reload the onSaveInstanceState() is called in situations in which the activity is stopped, but not finished, by the system. There are no guarantees about whether it will occur before or after onPause(). For example, when aview accepts user input, it is the view's responsibility to save and restorethat input to handle configuration changes. Sometimes, issues within the fragment can prevent onSaveInstanceState from being The issue is rather simple: Android (with a good intention) is complaining that we are trying to change the state of our Activity when onSaveInstanceState was already called. "In a Fragment, all of their lifecycle callbacks are directly tied to their parent Activity. Fragment. onSaveInstanceState() in the Activity that handles he Fragment? – DeeV. The point is that the instance of the Images class is destroyed on rotation, and so will your bundle variable. Commented Apr 12 993 onActivityResult is not being called in Fragment. show(getSupportFragmentManager(), "warndialog");, you are in fact performing a fragment transaction (see show()). There's ft. Try overriding onSaveInstanceState in your Activity class and save the count value there. You should call your RefreshFragment() only from onCreate() of activity and need not be called from onResume() of activity. Java documentation for android. . Here is the init code protected void onCreate(Bundle savedInstanceState) { mFragmentManager = And i have tried not calling super. This is causing an IllegalStateException with the message "Content view not yet created. replace(), FragmentTransaction. But how do I know if onSaveInstanceState() has been called? I want to do something like this. switch (position) { case 0: setFragment("A", new FragmentA()); break; . But to use this method you need to show this dialog by using supportFragmentManager only, like this: (pardon me, answer is in Kotlin). It is not called when the user explicitly closes the activity or in other When a Fragment is not at the top of the stack, i. Bundle). 3. Refreshing my fragment not working like I thought it should. You have to ask the parent fragment's child fragment manager: Note: Just extend simple fragment public class MapsFragments extends Fragment implements There are many situations where a fragment may be mostly torn down (such as when placed on the back stack with no UI showing), but its state will not be saved until its owning activity actually needs to save its state. Using Fragments: If you are using fragments, ensure that you're managing the fragment's lifecycle properly. Unable to resume an activity when using a viewPager. “In a Fragment, all of their lifecycle callbacks are directly tied to their parent Activity. In this case, text fields data, scroll position and other An AsyncTask will still run after an Activity is navigated away from. Thanks. onSaveInstanceState(outState); when the fragment's view onSaveInstanceState(Bundle savedInstanceState) is call before your activity going in pause mode. In the fragment, save instance state by overriding onSaveInstanceState() and restore in onActivityCreated():. One of it has one EditText and one Button. FragmentManagerImpl Fragment onSaveInstanceState not being called. commit() on it but I cannot change it to commitAllowingStateLoss() Hi I used fragment A and second fragment used b. putString("message", onSaveInstanceState called after fragment replaced. On purpose we are calling commit after onSaveInstanceState so that “In a Fragment, all of their lifecycle callbacks are directly tied to their parent Activity. So the framework will call onSaveInstanceState() when appropriate, but if you're calling setArguments(), you really don't know when you should be calling it. The map fragment is part of a layout you inflate to another fragment (let's call it parent). Updated response: Read the alternatives Passing data between a fragment and its container activity. I am trying to find a way to store data used by a fragment when I switch my application to the other fragment. Fragment already added IllegalStateException in viewpager. java (since both methods would have become shared public methods to any class inheriting CustomActivity) I have an activity and I have a fragment stack in it and sometimes, this stack get's lost Although I save and restore it I know following: onSaveInstanceState is not called: a) if the user navigates back, which makes sense b) if the activity is finished. In the second fragment, It just displays some textviews to indicate which callback of the activity's lifecycle is being called. The biggest disadvantage of Fragment is that when you want to use a fragment, you create it once. So, even if you don't call it explicitly, it is call at some point by your Activity. By the time the client received the response, user pressed the home button and exited the app. onSaveInstanceState is not being called in Fragment. It shows up in my activity, great. app. The inflated fragment becomes a child fragment NOT of the activity BUT of the parent fragment. In this case, when Activity is recreated, the committed fragment will not be present in Activity's No async task, no implementation of onSaveInstanceState(). If we try to call fm. Next, when the user leave your main activity, onSaveInstanceState and onPause methods are called for it. This is a case where DialogFragment is being dismissed in background, therefore it shall be allowed to dismiss only if it is done with dismissAllowingStateLoss() method. This problem happens when a process tries to manipulate an Activity whose onStop() has been called. It will be called when onSaveInstanceState() is called on the activity, which will be called in and around the onPause() and onStop() events. onCreateView not called with Fragment in ViewPager. commitAllowingStateLoss() is the last option for solving this problem. Refer to this. I have no idea why such situation occured. Then before making a fragment transaction, check the flag to be sure its false. onSaveInstanceState not called on Fragment. There's also lifecycle implications. remove() method is called and the Loginfragment will be removed. The onSaveInstanceState method is part of the activity lifecycle. In my layout I use a ViewPager with a custom PagerAdapter. I also appreciate that things are basically working as expected, however, I'm still suprised that onSaveInstanceState is called on a rotation which to me gives the false impression that onCreateView will then be called with a non-null so you your switch you can call the helper method instead. This exception occurs if you try to perform a fragment transition after your fragment activity's onSaveInstanceState() gets called. After few week on the market I got lot of exception report called "java. ), totally no ideas what's going wrong. When onSaveInstanceState is called in fragment? 3. I tried doing it in a testfragment where, when I click the button, the textview text will change to "test1"(The default text of the textview is "New Text"). I just got a stack trace from the "wild" complaining that I was trying to commit a fragment transaction after onSaveInstanceState has been called. public void onSaveInstanceState (Bundle outState, PersistableBundle outPersistentState); will NOT be called as it simply does not exist on earlier versions of the platform than 21. In order to remember where the user is, i am saving the location in onSaveInstanceState() BUT when the user pressed the home button on the phone, then navigated back to the app, onSaveInstanceState() was not being called, and since savedInstanceState was I want using savedInstanceState to storage data when rotate or change view but the function not called and they don't return my data for me. First of all create a back stack to keep fragments or just call addtoBackStack at the end of fragmentTransaction and then move the list initiation and data My Problem is when I am going to rotate the screen (that is portrait to landscape/vice-versa), my activity will be called again so it restarts my activity. getArguments(). How to save datas which are in ListView in case of any change in the orientation of emulator?. is called first and onCreateView is called after fragment A is recreated. R. Fragments are re-usable UI components. onSaveInstanceState(Bundle outState) in my Activity. But how do I accomplish that for DialogFragment?. compile group: Once the associated UI Controller (fragment/activity) is destroyed or the process is stopped, the ViewModel and all the contained data gets marked for garbage collection. a call to b and in used asynctask method but I used this first time it is perfectly worked but second time main E/AndroidRuntime: java. getSelectedItemPosition()); } I need help. Need Saved Instance Data in fragment but it's not working for me? Can anyone help ? Here is my code: @Override public View onCreateView Are you calling super. Unless your app is running on Lollipop (API21) version of Android or newer, your . By calling Frag. However, for some reason, onSaveInstanceState() is not get called. When the FragmentPagerAdapter adds a fragment to the FragmentManager, it uses a special tag based on the particular position that the fragment will be placed. onSaveInstanceState(outState); outState. show(getSupportFragmentManager(), "dialog"); } Why does it cause MainActivity have a FragmentTabHost in it ,and five Fragments add to this FragmentTabHost. @Override protected void onSaveInstanceState(Bundle outState) { //No call for super(). Hot Network Questions Centrifugal- and Centripetal force If the fragment needs a different layout resource when rotated, setRetainInstance(true) cannot be used. Afaik, if you have a fragment on the backstack and rotate the device, what happens is that the fragment gets recreated but not the view because the fragment is not displayed. onCreateView() not called in viewpager after configuration change. According to doc, it turned out that onSaveInstanceState() should mark the lifecycle as CREATED and @Erik I think you should move super. Related questions. java or SecondActivity. I think getSupportFragmentManager() is returning previous instance's manager where mStateSaved was true. Android: onSaveInstanceState not being called from activity. But it might point you in the right direction. The third fragment, in its layout, it contains a tablelayout with 3 rows, each row has a image, textviewand an edittext. Also see this. onSaveInstanceState is called before your activity is destroyed to restore resources to the system, not always after onStop is called. I check for activity. IllegalStateException: Can not perform this action after onSaveInstanceState in OK the problem is that, instead of adding content to the outstate variable, you are trying to reference a local variable. The onSaveInstanceState is called, followed by onDestroy. @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item. onSaveInstanceState(saveInstanceState); } Anyway if i don't store links to fragments onSaveInstanceState of fragment will never called. lang. show(fm, tag) is something like this Probably your fragment transaction is committing after onSavedInstanceState() callback. While the Fragment's view state is saved automatically before the view is destroyed, it is still the responsibility of the fragment to save any fragment specific state when onSaveInstanceState() is called. When I added some debugging messages with the help of Log. From Fragment docs for onSaveInstanceState(): This corresponds to {@link Activity#onSaveInstanceState(Bundle) Activity. So, if you commit() fragment after onSaveInstanceState() fragment state will be lost. 相关代码看起来相当简单： public class MyFActivity extends FragmentActivity implements ActionBar. Since you can save fragment transitions to the back state, pressing the back button can cause the reverse of the transition you save (so old fragments come back). setCurrentItem() depending on the condition. IllegalStateException will be thrown. The correct way to achieve what you are trying to do is to add your strings to the outstate variable in the onSaveInstanceState method, and read it onSaveInstanceState() is called during configuration changes and when the activity goes into the background; in both of these cases you actually do not need to reload or process the data if you So are you sure that the AsyncTask is not accessing the fragments view components after the fragment is replaced by another? Since there is a recursion, are you sure that Listener is not doing some ui things after the click event has triggered on the old Fragment? onSaveInstanceState called after fragment replaced. 6. Since you have used ft2. To test if this is the case here, override onSaveInstanceState() so it doesn't call the super method. Nested fragment: Can not perform this action after onSaveInstanceState. TabListener { String[] allValues; // data to save @Override protected void In other threads about similar problems the reason seems to be that the onPostExecute method is called before the onResume() method is called. And, to recreate them later, it'll call the non-arguments constructor. onSaveInstanceState is called: a) on screen rotation As I said before this worked for the first time i start the activity, not working after i call onBackPress() or finish() then startActivity again Fragment onSaveInstanceState not being called. The other one has only one ListView. As far as I know, onSaveInstanceState in a Fragment is bound to the activites lifecycle and get only called, when the activity gets destroyed. Avoid Fragment transaction until onRestoreInstanceState or onResume * gets called In one of my custom views I save the state and it's called on device rotation: override fun onSaveInstanceState(): Parcelable = Bundle(). That's why I think that the problem has to do with configuration changes and/or something tricky in the Activity lifecycle which you haven't 文章浏览阅读3. In jetpack android navigation there is an issue(so called) of recreating the previous fragment when we press back button or popBackStack(). Logging / Debugging: Add logging inside onSaveInstanceState to When you commit fragment after onSavedInstanceState(Bundle outState) callback (e. g. Indeed, that is the cause and it works as expected, it makes sure the view does not outlive the Fragment. Hide / Show fragment with fragmentTransaction not working. Tip: When using a ViewModel, you can save state directly within the ViewModel using a onSaveInstanceState() is called when there is an orientation change or user presses home button. As explained in Fragment Transactions & Activity State Loss under the bullet point "Avoid performing transactions inside asynchronous callback methods":. addtobackstack(), the state of the Loginfragment will be saved as a bundle and in that the fragment A is destroyed and recreated so onSaveInstanceState method. That is because it is not supposed to be called then. apply { putInt("selectedTabPosition", tabLayout. In both your cases you start a background task and when you are A fragment is not "torn down" when it is put on the back stack, mostly because fragments are not put on the back stack. Removing the call to super. For example, I have three fragments, if I swipe to the last one and come back to the first, the This is the key difference between the fragment lifecycle and the Fragment's view lifecycle (of getViewLifecycleOwner()). What I do is: FragmentA is created inside an activity. Or you can try to use SQLite or an ORM Framework to persist the list into a database. support. On device turn the activity containing the fragments gets restarted and onCreated is called. Avoid Fragment transaction until onRestoreInstanceState or onResume * gets called. When you use it, onCreateView of the fragment is called for each time. onSaveInstanceState(Bundle) and most of the discussion there applies here as well. So I'm using onSaveInstanceState both in the fragments and in the activity, and take the data of the bundle passed to onCreate or onCreateView. onSaveInstanceState called after fragment replaced. " "Can not perform this action after onSaveInstanceState" when fragment is First, as I can see, you want to handle configuration changes yourself. Fragment { 2. Here's how I observed the problem: There's a form with a submit button. )? – jacobhyphenated Commented Feb 7, 2014 at 19:11 go to NotificationsFragment ( pops back from the backstack ) : but instance state does not saved. onSaveInstanceState method you call super. Save state when navigating between fragments. Launching dialogfragments from another fragment:IllegalStateException: Can not perform this action after onSaveInstanceState 5 IllegalStateException: Can not perform this action after onSaveInstanceState in FragmentActivity class A very common way when this appears is where you invoke a network call, and trigger a fragment transaction in the callback. Usage of onSaveInstanceState and setRetainInstance in Fragments. (As the new fragment completely replaces the old one). I searched for solution, but found only for fragments. However the problem is that when fragments are being swiped onDestroyView() gets called but never calls onSaveInstanceState (Bundle outState). onSaveInstanceState(outState) The onSaveInstanceState method is Its better idea not to overload that constructor, because Android can kill your Fragments whenever it needs. build file (module:app). If you want to keep state of the components in the fragment you must save fragment state and you must load it's state in the next shown. So I save the position with onSaveInstanceState(), if it's not null I retrieve it in onCreateView() and in onViewCreated() I go through the if statements to get the position required for ViewPager. To remedy this, you will have to either manage the AsyncTask I suppose it is because I called it between the onSaveInstanceState of the activiy and the unattachment of the fragment from the activity (or because the activity was unattached after the getActivity() call and the add-fragment call. The reason is because I was using popBackStack, so the onSaveInstanceState method is never called as it goes after onDestroy but not after onDestroyView, so for this reason the savedInstanceState is always null in the Fragment. In my code. Creating the Fragment with commitAllowingStateLoss will not help. Bear in mind according to the documentation about onSaveInstanceState "If called, this method will occur before onStop(). One way to solve this would be using commitNow() instead of commit(). Commented Jul 12, 2019 at 8:06. It is always created in association with a scope (a fragment or an activity) and will be retained as long as the scope is alive. v4. Next, all fragment transactions will be executed after a network operation. LoaderCallbacks#onLoadFinished(). My code for my second fr When the user presses the back key, the whole lifecycle of fragmentA gets called, onAttach, oncreate, oncreateView etc and the fragment gets displayed but the values not saved as it did not call onsaveInstanceState when the fragment was replaced by fragmentB. So onSaveInstanceState gets called on the Fragment when its parent Activity has Using Fragments: If you are using fragments, ensure that you're managing the fragment's lifecycle properly. So create a field for the list in fragment class and always check for null or size of list to begin operation of fetching latest data @Override public void onSaveInstanceState(Bundle saveInstanceState) { // doing things super. I logged in Fragment:onSaveInstanceState() function but it did not get call, so save instance state does not call. 366 Understanding Fragment's Fragment arguments are meant to be used externally to initialize the fragment. If there is an another activity in front of an activity and the OS kills the hidden activity in order to free memory(or when memory is needed elsewhere), then onSaveInstanceState() is called so activity can save its state information which is restored LiveData does not know whether an action is safe to perform or not. Can not perform this action after * onSaveInstanceState". I understand that I should not try to commit a transaction after onSaveInstanceState(). Ask Question Asked 7 years, 10 months ago. IllegalStateException: Can not perform this action after Fragment's onSaveInstanceState(Bundle outState) will never be called unless fragment's activity call it on itself and attached fragments. The very first time the Activity is created, Fragment 1 is displayed. So, i can store state of fragment in onPause method, but it seems bad solution. 5. In my application I have an Activity that holds 3 Fragments. 0. I turn the device —> configuration changes: everything is destroyed to be recreated. If you are worried about the state loss, then I suggest that you cancel your AsyncTask when the user has minimized the application, (probably in the onStop() method). But I'm doing the commit in my onResume method! go into onResume or onResumeFragments into my custom onFragmentAttached method that is invoked by the invisible state fragment. onSaveInstanceState() is mostly for configuration changes, such as screen rotations. How to use onSaveInstanceState. Android will save your fragment state at onSaveInstanceState(). IllegalStateException: Can not perform this action after onSaveInstanceState I check the connected Internet and if it false, then call method openAsRoot in onCreate() Activity private v Fragment is getting replace twice that's why onResume of Fragment getting called twice. gameLoadingDialog = GameLoadingDialog() To correctly save the instance state of Fragment you should do the following:. In the Activity you could just do something like: Now, as I shuttle between these activities, onSaveInstance state is almost always called, however since the Fragment displaying whatever was in the foreground before the activity switch, onDestroyView is not called. To support pre API 21 devices you must, instead of the above, override the following method: onSaveInstanceState not called on Fragment. They have Android calls onSaveInstanceState() before the activity becomes vulnerable to being destroyed by the system, but does not bother calling it when the instance is actually being destroyed by a user action (such as pressing the BACK key) so you call multiple layouts on the same activity may not cause the above situation By not calling through to the super implementation of onSaveInstanceState, you are not allowing the Activity (or Fragment) to save its instance state. In other words, when onSaveInstanceState() is called, the user interface will be hidden and therefore users shouldn't be able to click things in the first place. In order to understand if your activity has already called onSaveInstanceState() method, you might think to place a flag inside onSaveInstanceState Prevoiusly I called replace with fragment manager and the fragments onPause method was called before transitioning to a new fragment ensuring I had notice the user had navigated away. That may be the reason it to be a null. But I get the exception even though onResume() Can not perform this action after * onSaveInstanceState". For example: Fragment 1 has a button to make a request to the server and when the result is ready, Fragment 1 uses a listener to call a method defined inside the parent I've read this brilliant article about fragment transactions and lifecycles, but I'm not sure how to handle this in my code. Saving and restoring an activity's state - Bundle always null? Related. There are several questions on StackOverflow, but non of them incorporating DialogFragment. So there is a small chance that the observer gets notified after onSaveInstanceState() is called. getInt("myInt", 0); The arguments will be available even if your Fragment is recreated. Now the mFragments is {null,A,C}. So here's my not so gentle solution: I have multiple fragments that the user can switch through via on screen navigation. transaction. I advise you to use ORMLite to save your list:. I could just use the safe operator, but I will have cases where the state isn't saved. Avoid performing transactions inside asynchronous callback methods. here is my fragment lifecycle logs. Now, the onCreate gets called which makes the mStateSaved as false but after this, if we use getSupportFragmentManager and commit the fragment, mStateSaved will be true. How can I accomplish this? If you replace() a fragment, the old fragment's views are destroyed, which takes out your MapView and, presumably, the CameraPosition. If the app is minimised when the network call completes, you should get an IllegalStateException. Try replacing the callback, with the new created activity, to make sure that you are creating the dialog always in the alive activity. mapView. Why ? Code: The XML: What i am doing::. Neither onCreate nor onActivityCreated have bundles with my data (unsuprisingly). My problem is that I don't know how to save and restore my ListView when I rotate the emulator's screen. The computation starts relying of data stored in prev calls of onSaveInstanceState, then start new intent; onSaveInstanceState of current fragments get called, information is missed in calculation; new Activity displays; old Activitys onDestroy is called; I thought about starting my calculation and the new activity in onDestroy. Which means that In Fragment, data is saved by onSaveInstanceState, and data can be recovered by onActivityCreated. You need to change your code to ensure that when you show the dialog fragment then the fragment B, instead of A, is set to null in the cache. Now, using a navgraph, the onresume is called but onpause, onSaveInstanceState and onstop are not when the fragment is not longer visible. My problem is that onSaveInstanceState is called on fragments that are no longer visible, and that have lost their member variables. Second, you are not doing fragments within fragments, at least not based on the code shown here. Modified 4 years, 9 months ago. This page shows the lifecycle of fragment with setRetainInstance(true). Fragment in viewpager savedinstancestate is always null. If you are trying to use outState to save the state and destroy the fragment by navigating to another fragment, it onSaveInstanceState called after fragment replaced. So onSaveInstanceState gets called on the Fragment when its parent Activity has Views are responsible for managing their own state. It is not called when the user explicitly closes the activity or in other cases when [finish()] onSaveInstanceState() is called during configuration changes and when Your Fragment is added at some point later which is not time bound. When performing the back action the activity and fragments will be destroyed. lang What happens next that might case the onSaveInstanceState() to be called on the Fragment (pause, finish activity, etc. Viewed 1k times Part of Mobile Development Collective savedInstanceState is null and First, fragments within fragments are supported via the Android Support package's backport of fragments and the native Android 4. IllegalStateException: Can not perform this action after onSaveInstanceState E/AndroidRuntime: at android. But since you have also used ft2. Fragment, you can override the setUserVisibleHint() method to check was your fragment really come visible to user. Sometimes, issues within the fragment can prevent onSaveInstanceState from being called. onSaveInstanceState(savedInstanceState) ; to the bottom of the method because it calls super before save your values to the variable savedInstanceState in the current implementation. Saved instance state is meant to be used internally by the fragment itself. Below is simple example for how to use onSaveInstanceState @Override public void onSaveInstanceState(Bundle outState) { outState. No View Found for ID when "Don't Keep Activities onSaveInstanceState not called on Fragment. 2+ implementation of fragments. Commented Apr 11, 2016 at 19:56. But, before onDestroy() is called, onSaveInstanceState() should be called. I have two Fragments. all fragments in mFragments is considered active and putFragment() is called until FragmentManagerImpl found A not in it and throw a Exception. When the button is clicked There are many situations where a fragment may be mostly torn down (such as when placed on the back stack with no UI showing), but its state will not be saved until its owning activity actually needs to save its state. Leave the ViewPager, and onSaveInstanceState is triggered. 1. 14. What I would like is when onSaveInstanceState is called in these dynamic fragments, it to force onDestroyView to be called as well. Not necessarily. public class OwnershipFragment extend android. class MyFragment extends Fragment { @Override public void onActivityCreated(Bundle savedInstanceState) { super. The reason the IllegalStateException is thrown is that you add a Fragment after its state already has been saved, so its state cannot be fully restored again. 73. To retreive the paramaters, just call getArguments(). getItem(int position) is only called when a fragment for that position does not exist. 4. , it is on the back stack, the Activity still gives it a chance to save state (for example when being rotated). Since im using a single activity and use fragment transactions the activity get never destroyed and therefore onSaveInstanceState will never be called. ViewPager inside Fragment returns IllegalStateException. Hot Network Questions In Huxley's "Brave New World", what did these words mean "China's was hopelessly insecure by comparison"? I am experimenting with using fragments in my application. Why should the instance be saved when you don't want to create private static final String TAG = DynamicFragmentA. This means that onPostExecute() may be called when an Activity is no longer visible and any UI changes that should be done in onPostExecute() will result in an Exception, most likely a NullPointerException or an IllegalStateException. And if this is the case then i need to commit it in onResume? Yes, you can try to use setRetainInstance(true); (add this line in your onCreate() method) to retain the state of your Fragment. The system calls this when it's time for the fragment to draw its user interface for the first time. What does not work as intended is the fact the onSaveInstanceState is called when the view is not there anymore. Commented Mar 25, 2013 at 17:52. FragmentPagerAdapter. d I discovered that not only was onSaveInstanceState not being called, but onCreate was (which the documentation seems to say shouldn't happen when retainInstance is true). Save Current Fragment in onSaveInstanceState. So the question is where in the activity lifecycle did you use the code you show us ? One workaround is to use commitAllowingStateLoss instead of commit for the fragment transaction. onOptionsItemSelected(item); } and onSaveInstanceState called after fragment replaced. This includes any transient state which hasn't yet been persisted into some other type of data storage. You are creating a dialog after the old destroyed activity has called his onSaveInstanceState. I have an Activity holding only one Fragment at once and replaces it, if another Fragment should get shown. Hot Network Questions I add a fragment to a LinearLayout, programmatically. So onSaveInstanceState gets called on the Fragment when its parent Activity has onSaveInstanceState called. Its state is saved in fragmentManager. sometimes i got the problem when activity is still running. MapFragment and SupportMapFragment already retain the CameraPosition (which, A fragment can be hosted in an activity/fragment. ; Later, after rotation, onCreate is called. getItemId()) { case android. IllegalStateException: cannot perform this action after onSaveInstanceState If you are too lazy to go through the source code and posts, here's an executive summary of the take-aways: When a Fragment is not at the top of the stack, i. The onSaveInstanceState is called, An example when onPause() is called and not onSaveInstanceState(Bundle) is when activity B is launched in front of activity A: the system may avoid calling onSaveInstanceState(Bundle) on activity A if it isn't killed during the lifetime of B since the state of the user interface of A will stay intact. In order to let things to work properly with API Level 13+, you have to add one more value to configChanges parameter, as described here. qae natb nudqip fuveo kbfeb jty asb kfhc vbotjrn bjfjdeyg