Android: What is the best way to avoid code duplication when several screens of the app have similar layout?

Question

My application has several screens, and each of them has almost the same layout.

I know I can use the "include" tag in xml to avoid rewriting the same layout again, but I also do not want to duplicate the java code of setting the behavior/properties of views and layouts. What is the best practice to be more organized in this case?

Edit: For example in several screens, the first half of the layout is a gallery that scrolls horizontally with text below it. This is the same throughout my app

having a similar layout doesn't mean the code is anywhere near the same. — Stultuske, Jun 04 '19 at 07:33
In my case, it is the same. For example in several screens, the first half of the layout is a gallery that scrolls horizontally with text below it. This is the same throughout my app — Harsha Vardhan, Jun 04 '19 at 07:34
so create it in a different file, and import it where needed — Stultuske, Jun 04 '19 at 07:35
What do you mean by "create it"? Are you talking about a static class/method to handle this code? I thought of that, but felt it could somehow be a bad coding practice — Harsha Vardhan, Jun 04 '19 at 07:36
Maybe put the common re-usable part of the various pages into one Fragment? — Markus Kauppinen, Jun 04 '19 at 07:42
I'm thinking about that. If you don't mind, can you refer me to an appropriate tutorial that details this kind of work? Thanks! — Harsha Vardhan, Jun 04 '19 at 07:44
[https://developer.android.com/guide/components/fragments](https://developer.android.com/guide/components/fragments) — Markus Kauppinen, Jun 04 '19 at 09:30

score 1 · Answer 1 · answered Jun 04 '19 at 07:50

1

If the screens are the same for example. Activity/Fragment

You can create a "generic" parent that handles the logic and use include for the layout.

Or

Create a custom view that uses a layout as content and you can write your logic there.

I create a library that uses this principle. here is a tutorial on how to create a view with a layout file

answered Jun 04 '19 at 07:50

Gil Goldzweig

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By "generic parent", do you mean a parent activity class? – Harsha Vardhan Jun 04 '19 at 08:00
Yeah, something like that – Gil Goldzweig Jun 04 '19 at 08:03
I'm trying to use a Fragment, which is included in the layout file. What could be the drawbacks of this? – Harsha Vardhan Jun 04 '19 at 09:02

Android: What is the best way to avoid code duplication when several screens of the app have similar layout?

1 Answers1