Decrease Clima's size - Githubissues

Lacerte / clima

MOVED TO https://codeberg.org/Lacerte/clima

Mozilla Public License 2.0

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Decrease Clima's size #202

Open triallax opened 3 years ago

triallax commented 3 years ago

Right now, Clima is a little too big for what it does. We need to take steps to reduce its size.

F-Droid-specific:

split APKs based on architecture: right now, we ship a "fat" APK, that is, an APK with all of the architectures bundled together. That means that every single user is downloading architectures they don't need.

General:

reduce number of dependencies: it can be difficult for humans to predict the effects of this accurately, so whenever we remove a dependency, we need to compare the sizes of (release) APKs before and after the change.
maybe look into some Gradle/Android settings to shrink the size too.

Any suggestions welcome.

prestosole commented 3 years ago

I've already opened two PRs to remove the font_awesome_flutter and package_info packages. Other packages that will be removed before v2.0 comes out are: flutter_spinkit (since we're going to remove the loading screen), device_preview (the beast of them all), and possibly implement material_floating_search_bar locally in the project.

Currently, the app stands at roughly 7 MB, but with all the packages we are going to remove and all the refactoring we are going to make, I guess the app size would go below 5 MB.

triallax commented 3 years ago

Some other dependencies we can remove:

flutter_hooks and hooks_riverpod: Riverpod 1.0.0 is going to make flutter_riverpod more convenient and powerful. We use hooks independently of Riverpod in a few places, but those usages can be refactored out easily.
dartz: I'm not sure, but maybe if we implement Either locally in clima_core it would be smaller.

prestosole commented 3 years ago

Klingt Gut!

triallax commented 2 years ago

So I investigated and tried out some things; here are my results:

Ignoring device_preview and Flutter itself, flutter_svg and its dependencies contribute relatively heavily to the overall size of the APK. It may be possible to remove the dependency if https://github.com/flutter/flutter/issues/1831 is resolved. Another possibility is somehow compiling the SVG down to Dart code. Of course, the difference might be negligible, as Flutter itself is the cause for most of the APK's fat.
Enabling Proguard on release APKs interestingly increases the size of the APK.

Note that I did these tests on #220.