Viewpager+FragmentpagerAdapet+Fragments+Listview = insanely slow app
I have a viewpager in my layout , that viewpager holds a set of 10 fragments . Each fragment has a list view , which is asynchronously populated . I m currently using FragmentPagerAdapter as adapter for the viewpager and the API calls to populate the list view is done in onCreateView of each fragment . The swipe is insanely slow and app closes itself because of the memory issues .
How to achieve smooth and responsive (viewpager+listview) like Google Play does ?
Smooth swiping + good cache of list items ?
One Solution collect form web for “Viewpager+FragmentpagerAdapet+Fragments+Listview = insanely slow app”
There are many ways to improve the performance of a
ViewPager integrated with a
First, change the
FragmentStatePagerAdapter. The difference is that you load 10 pages within the pager. And if you went through all the manager will only put the pages in
onStop() therefore it will reserve space. However using
FragmentStatePagerAdapter will destroy these pages but will save their instance using the
onSaveInstanceState method. So when you get back it won’t take much time to load and you will be saving memory.
FragmentPagerAdapter is used with 3 pages or less.
The second way to improve performance (but it drains the battery faster) is adding this line to your
AndroidManifest.xml under your application tag:
The third way is detecting the swipe gesture. You can do this by implementing
onPageChangeListener then in the implemented method
onPageScrollStateChanged you check if the page is
Idle then add the
ListView. Otherwise, stop the use of
ListView and scroll to the next page. Here is a better explanation of this point.
Hope some of these points can help you out to achieve better performance.