How can you get context of parent activity in any fragment?
How can you get context of parent activity in any fragment?
You can get the parent activity from a Fragment by calling getActivity() . 💡Difference : Both getContext() and getActivity() are not much different in most cases, when you just need a context as both will get Parent activity context.
How do I get application in fragment Kotlin?
- When a fragment is detached, getActivity() returns null.
- @colintheshots, could a fragment be actually detached during its own onCreate() if this fragment is created in the activity’s onCreate()?
- A fragment is typically attached during onCreate().
What is requireContext in fragment?
requireContext() returns a nonnull Context , or throws an exception when one isn’t available. If your code is in a lifecycle phase where you know your fragment is attached to a context, just use requireContext() to get a Context and also keep static analyzers happy about potential NPE issues.
How many ways can you call a fragment?
There are three ways a fragment and an activity can communicate: Bundle – Activity can construct a fragment and set arguments. Methods – Activity can call methods on a fragment instance. Listener – Fragment can fire listener events on an activity via an interface.
How does kotlin pass context from fragment?
To get the context in a fragmented use getActivity(), which renders the activity associated with a fragment. The activity is a context (since Activity continues Context). thiscontext = container. getContext();
What is the difference between getActivity and getContext?
getActivity() is at least a method on Fragment, to get the activity it is attached to. Whenever a context is needed in an instance method of an activity, you can use this . A context is needed whenever contextual info is needed, or when stuff needs to be displayed.
How can we call a method in fragment in Android?
Finally, when the condtion happens that you want to call the Fragment method, just call : listener. myAction() ; // this will call the implementation in your MyFragment class.
How to use context in a fragment?
getContext () method helps to use the Context of the class in a fragment activity. This way you can be sure that context will always be a non-null value. You can call getActivity () or, You have different options: If your minSDK <= 21, then you can use getActivity (), since this is a Context.
What is a fragment activity in Android?
Android Fragment is the part of activity, it is also known as sub-activity. There can be more than one fragment in an activity. Fragments represent multiple screen inside one activity. Android fragment lifecycle is affected by activity lifecycle because fragments are included in activity.
What is application context in Android?
The Context is often needed in an Android application and allows your code to be run within an Activity. The Context allows you for example: to access Android services, to access Application resources like images or styles, to create views. to assign gestures to an Activity.
