CODEWITHSUNDEEP
androidbuttonstaticandroid-activity
Tiago Almeida
Tiago Almeida

Reputation: 14237

How can I declare only once a button to all activities (including List Activities)?

I want to develop an application that has 4 buttons top and 4 buttons bottom in all activities. The problem is that I don't want to define button's handlers in all activities (because it is simpler to make modifications in only 1 place).

One solution I thought was: Do a Main Menu that extends Activity then extend all activities from Main Menu. However, I want to use Lists that extend from ListActivity.

Is there a way to declare and define handlers only once and use those buttons in all activities?

Upvotes: 1

Views: 316

Answers (2)

Tiago Almeida
Tiago Almeida

Reputation: 14237

Solved that issue implementing a singleton class.

Imagine that an application had 4 fixed buttons. You write 4 methods for those buttons in the singleton class and then call them from every Activity you write. Isn't the perfect solution, however it grants you a single space where you can change the handlers and spread those modifications automatically by all activities.

Hope it helps someone.

Upvotes: 0

Matthew
Matthew

Reputation: 44919

It's pretty easy to refactor a ListActivity into an Activity that has a ListView. If you do this, you can follow your "Main Menu" plan.

Upvotes: 1

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