In android, the fragment will act as a sub-activity and we can reuse it in multiple activities. We can add or remove fragments in an activity while the activity is running.
The fragment has its own lifecycle call-backs and accepts its own input events. We can build multi-pane UI by combining multiple fragments in a single activity and we can reuse the same fragment in multiple activities. By using fragments we can create flexible UI designs that can be adjusted based on the device screen size such as tablets, smartphones. Import android, Fragments are the modular section of activity design and these are used to represent the behavior of user interface (UI) in an activity. Now in Fragment class, “ MyFragment.java” add the following code package in.eyehunt.activityfragmentcommunication
Resource file “fragment_my.xml” with 2 TextView and a Button widget Create new fragment with the resource file Let’s build Android app for Activity and Fragments communication Step 1. Create new project “ Build Your First Android App in Kotlin“ Step 2. Add color in app>res>values>colors.xml In this example, we are doing the same thing or you will get an idea of how to do it. It’s a common situation when developer facing this kind of a problem during application developer. Situation: How to access a variable in activity from a fragment? Maybe chance you have to another way or requirement, then you have to choose as per needs. MyFragment.receiveMsg("Hi Fragment how are you ?") MyFragment myFragment = (MyFragment) manager.findFragmentById(R.id.myfrag) Method in fragment //Receive message - activity to fragmentĬreate an instance in activity and pass data to fragment FragmentManager manager = getSupportFragmentManager() it’s a flexible way when the fragment is already launched and Fragments want data from an Activity. Its very easy to do, create a method in Fragments and in Activity create an instance of fragments and pass data in methods.
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