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isolabellart asked why Coinos opens a prompt inside ntfy: every launch of the TWA asked whatever UnifiedPush distributor was installed for an endpoint (and asked for notification permission for it), Play Services or not. UnifiedPush is there for phones without Google Play Services (GrapheneOS and the like); with Play Services, web push reaches Chrome — and so the TWA — through Google already, and asking ntfy too only put up its prompt (and would bring every notification twice). The TWA now asks a distributor only when Play Services isn't installed and enabled (Push.playServices; its package named in the manifest's queries for Android 11+), or when it already holds an endpoint — whoever has one has been through the prompt and may be counting on it. The WebView builds (webview, fdroid) are unchanged: web push never reaches a WebView, so UnifiedPush is their only way in either way.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01KPw21NEpWeTGu6swVASmBt
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The TWA can't. Chrome renders the site, so the wallet's keys live in Chrome's
storage for its own origin, and nothing outside Chrome can reach them — a
UnifiedPush message could raise a notification and no more. On a phone with
Google Play Services none of this matters; without it, background answering
was simply unavailable.
So: a second flavour, io.coinos.webview, "Coinos (UnifiedPush)". The wallet
runs in a WebView this app owns, which means a push can start it off-screen
and let it answer for itself. WakeService loads it with ?wake=<payload> into
the same storage the visible app uses, the page subscribes and answers
whatever the payload was about, then calls CoinosHost.done() so the service
stops — capped at 25 seconds from the page and 30 from the service, because
nothing here is allowed to sit in the background costing battery. Its
foreground notification says what it's doing rather than apologising for
existing.
The WebView carries what the wallet actually needs: DOM storage and
IndexedDB, the camera for the QR scanner (granted only once Android has
granted it to us), a file chooser for attaching pictures, and links to
anywhere but coinos.io handed to a real browser.
The trade is named in the code and worth naming here: a separate app is a
separate wallet. Its storage is its own, so signing in there is signing in
again. That's why this is a second build rather than a replacement — the TWA
is untouched, still the better browser for anyone whose phone has push.
The shared push receiver now asks the system for whatever front door this
build has, and asks a per-flavour Wake class whether the wallet can be woken
at all — no flavour checks in the middle of it. Both APKs build and ship:
coinos.apk as before, coinos-unifiedpush.apk beside it.
Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_019mrt228Upn9nNCwGixzSLx
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