Play Store release build: signing, R8, versioning, listing assets - #2
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- versionCode 100 / versionName 5.0.0: the package already ships on Play at versionCode 25 (4.0.0); the new line starts well above it. - Release build type with R8 shrinking + resource shrinking and keep rules for Room, the Nordic DFU service, and coroutines. Verified on a Pixel 7 against a MetaMotion S: the minified build scans, connects, and live-streams (2.1 MB APK vs 19 MB debug). - Signing config reads app/keystore.properties (gitignored, alongside *.jks / *.keystore / *.pepk) so no credential can enter git. Absent the file, release still assembles — signed with the debug key so it can be smoke-tested on a device — and only a machine holding the upload key produces the store artifact. - Debug builds get a .debug applicationId suffix so they coexist with the store install. - AAB: language splits off (single-language app, fully offline-usable). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
… icon store-assets/listing.md (name, descriptions, Data safety answers, permission justifications), RELEASE.md (upload-key signing from keystore.properties, bundleRelease, version bump, pre-submit checklist), seven phone screenshots, and the 512x512 icon. A 1024x500 feature graphic is still to be produced. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Center-crop the phone screenshots to exactly 1080x2160 (2:1) — Play caps screenshot aspect ratio at 2:1 and the raw 1080x2400 grabs are 2.22:1; the crop trims only the OS status bar and nav pill. Add a 1024x500 feature graphic (required for the listing): the app icon centered on the brand-orange field. Placeholder-grade — a designed banner would be better but this is Play-compliant and unblocks publishing. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The Play listing material (screenshots, feature graphic, listing copy, runbook, hi-res icon) is release-time working material, not source. Untrack store-assets/ and gitignore it so it stays on disk locally without being published.
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TL;DR
Everything needed to ship the app to Google Play as an update to the existing
com.mbientlab.metawear.applisting. No secrets committed.app/keystore.properties(gitignored, alongside*.jks/*.keystore/*.pepk). Absent the file the release build still assembles (debug-signed) so anyone can smoke-test; only a machine with the upload key produces the store artifact.versionCode100 /versionName5.0.0 — the live listing is at code 25 (4.0.0), so this clears it with room and reads as a major bump. Debug builds get a.debugsuffix to coexist.store-assets/:listing.md(name, short/full description, Data safety answers — declares no data collected or shared; network is HTTPS to MbientLab for firmware only — and permission justifications),RELEASE.md(upload-key signing runbook + pre-submit checklist), 7 phone screenshots (1080×2400), 512² icon.Still needs a human
mbientlab_android_apps.jkspath + passwords inapp/keystore.propertiesand run./gradlew :app:bundleRelease(seestore-assets/RELEASE.md).Test plan
:app:bundleRelease(R8) BUILD SUCCESSFUL, no missing-class errors:app:testDebugUnitTest120 green; nothing secret is git-trackable (git check-ignoreconfirms)