How do I call fragment from activity OnClickListener in Android?
The answer to your problem is easy: replace the current Fragment with the new Fragment and push transaction onto the backstack. This preserves back button behaviour… Creating a new Activity really defeats the whole purpose to use fragments anyway… very counter productive.
How do I update my Android Viewpager adapter?
Firstly set viewpager adapter to null then recreate the adapter and set i to it to viewpager. Show activity on this post. Define which message which is needed to update. Write below code in the Fragment which is needed update.
How do you call ViewPager fragment from activity?
You’ll just need to cast it to the real fragment class if you want to call a specific method. int pos = viewpager. getCurrentItem(); Fragment activeFragment = adapter. getItem(pos); if(pos == 0) ((NPListFragment)activeFragment).
How do you go from an activity to a fragment?
This example demonstrates how do I pass a variable from activity to Fragment in android. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Step 2 − Add the following code to res/layout/activity_main. xml.
What is setOnClickListener new view OnClickListener ()?
setOnClickListener(this); means that you want to assign listener for your Button “on this instance” this instance represents OnClickListener and for this reason your class have to implement that interface. If you have more than one button click event, you can use switch case to identify which button is clicked.
How can you pass data from an activity to a fragment?
So, to pass data from the MotherActivity to such a Fragment you will need to create private Strings/Bundles above the onCreate of your Mother activity – which you can fill with the data you want to pass to the fragments, and pass them on via a method created after the onCreate (here called getMyData()).
How do I move a fragment to another activity?
If you want to start a new instance of mFragmentFavorite , you can do so via an Intent . Intent intent = new Intent(this, mFragmentFavorite. class); startActivity(intent); If you want to start aFavorite instead of mFragmentFavorite then you only need to change out their names in the created Intent .
Can I call fragment method from activity?
Bookmark this question. Show activity on this post. I see in the Android Fragments Dev Guide that an “activity can call methods in a fragment by acquiring a reference to the Fragment from FragmentManager, using findFragmentById() or findFragmentByTag() .”
How do you pass data from activity to fragment using intent?
How pass data from activity to service in Android?
2. Pass Data Between Activities Use Intent Object.
- Create an instance of android.
- Invoke the above intent object’s putExtra(String key, Object data) method to store the data that will pass to Target Activity in it.
- Invoke Source Activity object’s startActivity(intent) method to pass the intent object to the android os.