Compose resources can be located in different KMP source sets in the
`composeResources` directory. For each resource an accessor will be
generated in the suitable kotlin source set.
Users noticed if an app has big a `string.xml` file it affects the app
startup time:
https://github.com/JetBrains/compose-multiplatform/issues/4537
The problem is slow XML parsing.
Possible ways for optimization:
1) inject text resources direct to the source code
2) convert XMLs to an optimized format to read it faster
We selected the second way because texts injected to source code have
several problems:
- strict limitations on text size
- increase compilation and analysation time
- affects a class loader and GC
> Note: android resources do the same and converts xml values to own
`resources.arsc` file
Things was done in the PR:
1) added support any XML files in the `values` directory
2) **[BREAKING CHANGE]** added `Res.array` accessor for string-array
resources
3) in a final app there won't be original `values*/*.xml` files. There
will be converted `values*/*.cvr` files.
4) generated code points on string resources as file -> offset+size
5) string resource cache is by item now (it was by the full xml file
before)
6) implemented random access to read CVR files
7) tasks for syncing ios resources to a final app were seriously
refactored to support generated resources (CVR files)
8) restriction for 3-party resources plugin were deleted
9) Gradle property `compose.resources.always.generate.accessors` was
deleted. It was for internal needs only.
Fixes https://github.com/JetBrains/compose-multiplatform/issues/4537
Ports a part of Unicode's ICU in pure Kotlin and implements
Android-style plural string resource support. Fixes
JetBrains/compose-multiplatform#425.
# Changes
- Added `org.jetbrains.compose.resources.intl.{PluralCategory,
PluralRule, PluralRuleList}`, which parses and evaluates scripts in
Unicode's Locale Data Markup Langauge.
- Copied `plurals.xml` from Unicode's
[CLDR](https://github.com/unicode-org/cldr/blob/release-44-1/common/supplemental/plurals.xml).
- Added `GeneratePluralRuleListsTask`, which parses `plurals.xml` and
generates required Kotlin source codes.
- Added `PluralStringResource`, `pluralStringResource`, or
`getPluralString`, corresponding to `StringResource`, `stringResource`,
or `getString`.
- Modified `ResourcesSpec.kt` so the generated `Res` class exposes
`Res.plurals`.
# Potential Further Improvements
- [ ] Allow configuring the default language in the `compose.resources
{}` block (#4482) to determine the default pluralization rule (or just
presume English as default)
- [ ] Move the parser logic to the Gradle plugin and generate
pluralization rules in `Res` only for languages used in
`composeResources`
---------
Co-authored-by: Konstantin Tskhovrebov <konstantin.tskhovrebov@jetbrains.com>
- integrate KGP resource API
- packaging final resources to iOS and JS/Wasm applications
- integration tests of publication and multi module support
- info logging of supported Gradle and KGP versions
### requirements
- Kotlin Gradle Plugin >= 2.0.0-Beta05
- Gradle >= 7.6
Konstantin
Chanjung Kim