#android-viewpager

Fix: How to determine when Fragment becomes visible in ViewPager #computers #solution #fix

How to determine when Fragment becomes visible in ViewPager

Problem: Fragment onResume() in ViewPager is fired before the fragment becomes actually visible.

For example, I have 2 fragments with ViewPager and FragmentPagerAdapter. The second fragment is only available for authorized users and I need to ask the user to log in when the fragment becomes visible (using an alert dialog).

BUT the ViewP…

Fixed ViewPager and fragments — what's the right way to store fragment 's state? #dev #it #asnwer

ViewPager and fragments — what’s the right way to store fragment’s state?

Fragments seem to be very nice for separation of UI logic into some modules. But along with ViewPager its lifecycle is still misty to me. So Guru thoughts are badly needed!

Edit

See dumb solution below ;-)

Scope

Main activity has a ViewPagerwith fragments. Those fragments could implement a little bit different logic for…

Fixed ViewPager PagerAdapter not updating the View #dev #it #asnwer

ViewPager PagerAdapter not updating the View

I’m using the ViewPager from the compatibility library. I have succussfully got it displaying several views which I can page through.

However, I’m having a hard time figuring out how to update the ViewPager with a new set of Views.

I’ve tried all sorts of things like calling mAdapter.notifyDataSetChanged(), mViewPager.invalidate()even creating a brand…

How do disable paging by swiping with finger in ViewPager but still be able to swipe programmatically?

I have ViewPager and below it I have 10 buttons. By clicking on button, for example #4, the pager goes immediately to page #4 by mPager.setCurrentItem(3);. But, I want to disable the paging by swiping with finger horizontally. Thus, the paging is done ONLYby clicking on the buttons. So, how I…

How to: Replace Fragment inside a ViewPager

Replace Fragment inside a ViewPager

I’m trying to use Fragment with a ViewPager using the FragmentPagerAdapter. What I’m looking for to achieve is to replace a fragment, positioned in the first page of the ViewPager, with another one.

The pager is composed by two pages. The first one is the FirstPagerFragment, the second one is the SecondPagerFragment. Clicking on a button of the first page. I’d…

How to: How to determine when Fragment becomes visible in ViewPager

How to determine when Fragment becomes visible in ViewPager

Problem: Fragment onResume() in ViewPager is fired before the fragment becomes actually visible.

For example, I have 2 fragments with ViewPager and FragmentPagerAdapter. The second fragment is only available for authorized users and I need to ask the user to log in when the fragment becomes visible (using an alert dialog).

BUT the ViewP…

How to: ViewPager and fragments — what's the right way to store fragment 's state?

ViewPager and fragments — what’s the right way to store fragment’s state?

Fragments seem to be very nice for separation of UI logic into some modules. But along with ViewPager its lifecycle is still misty to me. So Guru thoughts are badly needed!

Edit

See dumb solution below ;-)

Scope

Main activity has a ViewPagerwith fragments. Those fragments could implement a little bit different logic for…