Android Maintaining own collection of fragments and resume the fragment if it exists

Asked Sep 29 '14 at 09:29

Active Sep 29 '14 at 15:25

Viewed 63 times

I have few fragments attached to one activity.I want to retreive the fragment from the stack if your exsists in the collection/stack.And i do not want to pop out or loose the fragment once it loaded.I want to reuse the same fragment all time when needed.

Is there any way i can use fragment manager and achieve this ?

can i maintain my own hashMap of fragments and implement it ?

Using 2 way, i tried doing it,i am getting exception.

I'm trying to use fragmemt.getView() and attached the view to the frameLayout and the exception is thrown as shown :

layout.addView(fragment.getView());

09-29 09:16:24.887    3481-3481/com.sample.android.app W/System.err:   
java.lang.IllegalStateException: The specified child already has a parent. You must call     
removeView() on the child's parent first.

Note: I cannot pop fragment as i ll loose the fragment.I just want to reuse the same fragment all time to avoid loading data.

edited Sep 29 '14 at 15:25

asked Sep 29 '14 at 09:29

Meher

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`FragmentManager.findFragmentByTag(theTag)` if != null then use it, if == null then create new one ? then use pair FragmentTransaction show/hide instead remove – Selvin Sep 29 '14 at 09:31
As per the link,if i found the fragment by tag ,i should replace it.http://stackoverflow.com/a/14295368/1140321.Doing this i have to load the data again.I want to get the quickness when we pop the fragment from backstag without loosing the fragment. – Meher Sep 29 '14 at 09:33
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no, you should hide current and show founded one ... – Selvin Sep 29 '14 at 09:34
Aren't you basically just looking for `FragmentPagerAdapter` with `ViewPager`? – EpicPandaForce Sep 29 '14 at 09:59
@421 are you using a view pager? – AndroidEnthusiast Sep 29 '14 at 10:31
Yes..i am using view pager – Meher Sep 29 '14 at 10:53

Android Maintaining own collection of fragments and resume the fragment if it exists

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