Phone gallery preview

Purpose

Show how the phone crawls externally stored artefacts produced by demos and previews them safely.

Entry points

Phone home:

• MainPhoneActivity → GalleryActivity

Sample Activities:

• com.rokid.phone.GalleryActivity
• com.rokid.phone.ImagePreviewActivity

Platform

• Phone

Main files

• GalleryActivity.kt
• ImagePreviewActivity.kt

Flow

1. Walk getExternalFilesDir(null) subtree.
2. Recursively classify images/video candidates.
3. Route taps → ImagePreviewActivity for stills or FileProvider playback for clips.

FAQ

Why only app sandbox storage

Demonstrates artefacts generated via partner flows—not the global photo roll.

Supported codecs

Still: jpg/jpeg/png. Motion: mp4/avi/mov.

Caveats

• If no Activity can resolve video playback intents, toast failure.
• Replace with MediaStore queries when you need handset-wide galleries.