ANDROID - Use ArrayList in secondary Activity

Question

Is it possible in the main Activity in a separate thread, loading a ArrayList (reading records from a database) and use that ArrayList loaded in a secondary Activity?

Community · Accepted Answer · 2017-05-23 12:20:14Z

2

You can try new Intent().putStringArrayListExtra(String name, ArrayList<String> value) to pass String Arraylist from one Activity to another Activity For Refrence See pass arraylist from one activity to other

edited May 23, 2017 at 12:20

CommunityBot

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answered Mar 19, 2012 at 10:31

Nitin

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Tobias · Accepted Answer · 2012-03-19 09:29:39Z

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If you just want to load the data in the Activity and not show views in both Activities then you should use the class "Service" which is an activity running in the background.

answered Mar 19, 2012 at 9:29

Tobias

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2 Comments

Waynn Lue Over a year ago

How exactly would you use the class Service?

Tobias Over a year ago

I would create an interface for the communication between the Service and the Activity that have a function for initiating the fetch and one for registering a handle/callback so that the result can be "returned" to the Activity. developer.android.com/reference/android/app/…

Prem · Accepted Answer · 2012-03-19 09:34:58Z

0

You can definitely use your ArrayList in another activity by declaring it as public static.

public static ArrayList<> mylist; // declaration

To use it another activity :-

FirstActivity.mylist......

Hope this will help.

answered Mar 19, 2012 at 9:34

Prem

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5hssba · Accepted Answer · 2012-03-19 09:35:52Z

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Yes ,it is possible.. but to use in second activity.. the arraylist must not be empty by the time you use it in second class..

answered Mar 19, 2012 at 9:35

5hssba

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