How do I refresh ViewPager fragments?

How do I refresh ViewPager fragments?

So if you need to update Fragment you can do it with:

1. Always return POSITION_NONE from getItemPosition() method. It which means: “Fragment must be always recreated”
2. You can create some update() method that will update your Fragment(fragment will handle updates itself)

How do I stop refreshing fragments on tab is changed?

7 Answers

1. In the onCreate() of your fragments, call setRetainInstance(true) .
2. If the number of fragments is fixed & relatively small, then in your onCreate() add the following code: mViewPager = (ViewPager)findViewById(R.id.pager); mViewPager.setOffscreenPageLimit(limit); /* limit is a fixed integer*/

How do you refresh a fragment in Kotlin?

you can refresh your fragment when it is visible to user, just add this code into your Fragment this will refresh your fragment when it is visible. You cannot reload the fragment while it is attached to an Activity, where you get ” Fragment Already Added ” exception. Please provide your answer with clear descriptions.

How do you refresh Tablayout?

How to refresh tab in tabbed layout group

1. “Refresh when active” option on the tab3 layout,
2. Defer load and.
3. Refresh Condition of Dynamic layout.

How do I refresh the fragment when a tab is selected?

When a Fragment is made visible (i.e., the selected page in your ViewPager ), its setUserVisibleHint() method is called. You can override that method in your TwoFragment and use it to trigger a refresh.

How do you refresh a fragment on a resume?

detach(this). attach(this). commit(); This line detach and re-attach the fragment so your content will be updated.

How can make my Viewpager load only one page at a time?

For loading only the visible fragment you have to set the behaviour to BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT in the viewpager adapter. ie; in the Constructor. And for handling the fragment use onResume() method in the fragment. In this way you can load only one fragment at a time in the viewpager.

How do you refresh a back pressed fragment?

You can override onBackPressed in Activity and call a function on corresponding fragment to reloadItems(). Here are your 3 options I could think of. Get reference to Fragment and call function to reLoadItems and its better to define an interface for this communication which fragment implements.

How do you refresh an activity?

Start with an intent your same activity and close the activity . Intent refresh = new Intent(this, Main. class); startActivity(refresh);//Start the same Activity finish(); //finish Activity.

How do you refresh a fragment after onBackPressed from activity?

You can override onBackPressed in Activity and call a function on corresponding fragment to reloadItems().

How do I load a fragment in ViewPager?

You can find the source code of this project here.

1. Step 1: Put a ViewPager widget in your xml layout.
2. Step 2: Set up the child Fragments you would like to display.
3. Step 3: Make an adapter for the ViewPager.
4. Step 4: Now find your ViewPager in MainActivity and call the setAdapter() method and pass in your custom adapter.

How do I load all fragments in ViewPager?

call setOffscreenPageLimit with a number higher than half your fragments. This will force the viewpager to create and keep all of the fragments created as you have in your adapter.