How do I find activity context in activity?
How do I find activity context in activity?
Lets get started.
- The “this” Keyword.
- Get current activity context : View.
- Get App-level context : getApplicationContext()
- Get Original context : getBaseContext()
- Get Context from Fragment : getContext()
- Get parent Activity : getActivity()
- Non-nullable Context : requireContext() and requireActivity()
How do I get the context of a fragment?
Always use the getActivity() method to get the context of your attached activity, but always remember one thing: Fragments are slightly unstable and getActivity returns null some times, so for that, always check the isAdded() method of fragment before getting context by getActivity() .
How do I get the activity context on my adapter?
Whereas an ArrayAdapter requires a context to be passed into it’s constructor, a RecyclerView. Adapter does not. Instead, the correct context can be inferred from the parent view when inflation is necessary. The associated RecyclerView always passes itself as the parent view into the RecyclerView.
What is the difference between getContext and getActivity?
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.
What is activity context?
Activity Context This context is available in an activity. This context is tied to the lifecycle of an activity. The activity context should be used when you are passing the context in the scope of an activity or you need the context whose lifecycle is attached to the current context.
How do you pass context from one activity to another?
3 Answers. Now You can pass this context to the makeText() method of Toast class. You can create a method like setContext(Context context) in your DataBase Helper class to pass your context from your activity.
How do I pass context from activity to 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();
How do I load an activity fragment?
Code to load a fragment: //add this inside the Oncreate or where you want to load activity. Fragment fragment; fragment = new HomeFragment();loadFragment(fragment);
How do I get context in kotlin adapter?
You have a few options here:
- Pass Context as an argument to FeedAdapter and keep it as class field.
- Use dependency injection to inject Context when you need it. I strongly suggest reading about it. There is a great tool for that — Dagger by Square.
- Get it from any View object. In your case this might work for you:
What is difference between activity Context and Applicationcontext?
7 Answers. They are both instances of Context, but the application instance is tied to the lifecycle of the application, while the Activity instance is tied to the lifecycle of an Activity. Thus, they have access to different information about the application environment.
What is Context Context in Android?
Context provides the connection to the Android system and the resources of the project. It is the interface to global information about the application environment. The Context also provides access to Android Services, e.g. the Location Service. Activities and Services extend the Context class.
What is in Android?
FragmentActivity. Base class for activities that wish to use some of the newer platform features on older Android devices. Base class for activities that want to use the support-based Fragments . When using the tag, this implementation can not use the parent view’s ID as the new fragment’s ID.
Is there a way to get activity of a fragment?
You can use getActivity(), which returns the activity associated with a fragment. The activity is a context(since Activityextends Context). Share Improve this answer Follow
How to get the context of a fragment in Java?
to get the context inside the Fragment will be possible using getActivity () : public Database () { this.context = getActivity (); DBHelper = new DatabaseHelper (this.context); } Be careful, to get the Activity associated with the fragment using getActivity (), you can use it but is not recommended it will cause memory leaks.
How to get the context of an attached activity?
Always use the getActivity () method to get the context of your attached activity, but always remember one thing: Fragments are slightly unstable and getActivity returns null some times, so for that, always check the isAdded () method of fragment before getting context by getActivity ().
