Pass the activity from Application class

Question

I am creating a class in application with following code:

public class Trackers extends Application
{
       private static Connection connection;
       public Connection getConnectionInstance() {
           if (connection == null)
               connection = new Connection();
           return connection;
       }
}

I need to pass Main activity to Connection class.Is this possible ? If it is possible,how ?

score 1 · Accepted Answer · edited May 23 '17 at 10:33

1

You can put your main activity as a parameter to connection constructor:

public class Trackers extends Application
{
       private static Connection connection;

       public Connection getConnectionInstance(MainActivity main) {
           if (connection == null){
               connection = new Connection(main);
           }
           return connection;
       }
}

of course, I assume that if you want to pass the activity to Connction, connection needs to support getting the main activity

if you want to call method from activty, look here: How to call a method in activity from a service

or here: android start activity from service

edited May 23 '17 at 10:33

Community

1
1

answered Dec 29 '14 at 20:20

yossico

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But I am calling getConnectionInstance from service.Not from main activity. – Okan Dec 29 '14 at 20:21
@Okan why do you want to pass the main activity? are you sure you dont need the application context only? – yossico Dec 29 '14 at 20:23
I will call main activity method from connection class.So I need main activity. – Okan Dec 29 '14 at 20:23
@Okan but if you calling from a service, maybe the main activity isn't active. it's smells like you need to use Intents here – yossico Dec 29 '14 at 20:25
Can you give an example ? Please I am researching for hours I am so confused. – Okan Dec 29 '14 at 20:26
@Okan See my edit, good luck (an accepted answer / upvote will be nice) – yossico Dec 29 '14 at 20:30

Pass the activity from Application class

1 Answers1