CODEWITHSUNDEEP
androidandroid-activityandroid-intent
Lukap
Lukap

Reputation: 31963

Firing intents for already started activity

from class B(class that works in background) someone do this code NOTE: the activity A is already in the front, visible and running

context.startActivity(createIntent(context, A.class));

I could not get it why ?, what is the point ? I mean this is not for starting the activity, cause the activity has been already started. Also note that without this the program it is not working. so obviously with this code there is some kind of 'refresh' made on the activity.

So my question is which methods are called on the activity when the activity is running and new intent for that activity has been fired ? and what is the point of this kind of programming whatsoever . . .

Thanks

Upvotes: 1

Views: 610

Answers (3)

Ron
Ron

Reputation: 24233

Such intents will be received in the onNewIntent() callback of the Activity class. You can use such method when you expect the activity to be launched from multiple points. Like from a service. The activity is paused on receiving such intent.

Upvotes: 1

ethan
ethan

Reputation: 21

well, it depends on the intent flags and launchmode of activity A. if A is single task, its onNewIntent would be invoked. Most likely, a new instance of activity A is being created. if not, post the intent flags and manifest of A

Upvotes: 2

Vineet Shukla
Vineet Shukla

Reputation: 24021

I guess you are making some changes in the data or UI which are taking effect as you are restarting it ... use the Handler to update data or UI in your activity ..

you can also refer this doc:

http://developer.android.com/reference/android/os/Handler.html

Upvotes: 0

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