Alex Rivera | Logout

Too many Activities in Android?

Asked 2012-04-06T15:20:43.087
14

When i started my Android project i had a misunderstanding that every screen that's shown in the application must be a new activity. Now i am finished with the project , i have checked it on my emulator as well as on a couple of android phones. So far i am not witnessing any problems, but recently i read somewhere that too many activities in the application are a pretty bad idea.

Currently my application has around 15-20 activities.Ideally i heard it should be around 5-6. Do i need to re-structure my code or just finishing every activity after it has done it's part is enough?

android optimization android-activity
Edit
Report

2 Answers

39

While creating complex applications you definite need to create many activities. So it depends on your application how many activities you need. No of activities in a project do not affect the performance.

The effect is produced by the number of activities in the stack of your android. So it is better to keep 5-6 activities in the stack(Finish activities if they are not needed any more).

So create as many Activities as your application demands but keep smaller no of Activities open at a time.

answered 2012-04-06T15:36:18.950
3

[EDIT] - As of Google IO 2018, Google recommends using a single activity with many fragments. Something to consider.

It ultimately depends on what you're doing. There are some times when you can not modify the view enough to make a difference. Ideally, 5-6 activities is great, but some cases thats not just not doable. I've done a mobile app with around 40 different classes, and about 18 activities. It just HAD to be done that way based on how the app was to interact with the user. If you can merge 2 or 3 activities into one, thats great. It'll help with file size and optimization as well, but if you can't- Don't fret on it too much.

answered 2012-04-06T15:26:18.640

Your Answer