How to update fragment's data used in ViewPager? View is not showing the updated data

Question

I know the same question has been asked so many times but I am not able to solve my issue.

I have created an Activity which has a ViewPager

Answer 1

After checking your code more in details i see you do not require to re-initliaze your MediaAdapter inside updateData method.

You simply require to update your updateData as

listMedia.clear();
this.listMedia.addAll(listMedia);
mediaAdapter.notifyDatasetChanged();

This will reload your data in gridview. Change i suggested will refresh the data in your arraylist which is being used for rendering gridview and then you notify your mediaAdapter to reload the list.