Media3 SeekBar Preview on HLS MediaItem
@marcbaechinger is already working on this.
Since Jun 18, 2025.
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- Java
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Description
Hi,
I’m working on implementing a seek-bar preview feature for an HLS (HTTP Live Streaming) MediaItem in Jetpack Compose, similar to what is seen on YouTube, Instagram, and other popular apps—where a small preview thumbnail appears above the seek bar while the user is scrubbing through the video.
Could anyone guide me on how to approach this in Compose?
Specifically, I’m looking for help with:
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Generating or retrieving preview thumbnails for HLS streams (e.g., using .m3u8 thumbnail playlists).
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Displaying a thumbnail preview in sync with the seek position.
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How to implement this in Jetpack Compose, possibly using ExoPlayer (Media3) with custom Composable.
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Any libraries or ExoPlayer (Medai3) extensions that support thumbnail previews.
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Best practices for performance and UI responsiveness in Compose.
Any code samples, open-source references, or architecture suggestions would be greatly appreciated.
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