Android 0.6.8: playback sharing, live drawing and encrypted images - #67
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Android 0.6.8 (31) preserves the selected listening device, supports same-second handovers, shares permitted app playback with screen capture, sends drawing segments while a finger is down, and opens encrypted image attachments with fit, actual-size, pinch zoom and an explicit Open in action.
Playback and microphone controls are independent: the single native WebRTC input mixes speech only while its control is enabled and unmuted. Captured playback excludes this app's UID. The share dialog explains device-sound scope and allows silent screen sharing. Stop, leave and projection revocation tear down the capture. Annotations have a separate bounded allowance so sustained drawing cannot consume call negotiation's budget.
Image downloads are explicit, HTTPS-only and bounded; the complete ciphertext hash and every authenticated record are checked before display. Files stay in memory unless the user opens one in another app through a narrowly scoped FileProvider. The viewer closes on retraction. Current image limits are 32 MiB encrypted and 16 megapixels; uploads, SVG rendering and arbitrary Android app overlays remain outside this change.
Validation: full protocol/app unit, debug/release lint and APK builds passed locally, with subsequent focused handover/attachment/drawing tests. Three Android 35 emulator tests passed: actual MediaProjection playback from another app into the WebRTC input callback and teardown; web-encrypted image download/decrypt/fit/zoom/retraction; and live video, drawing before finger-up, pan/zoom and picture-in-picture. The probe used a separate debug application ID. The Pixel remains on 0.6.6 and untouched while its owner is using it for a call. Production-key signing, in-place phone update and physical remote-listener acceptance are pending.