What is media3-view-ui-player?

Guidance for building Android video-player screens with Media3, the Android library for handling media playback, using traditional Views, XML layouts, or Compose, Android’s modern UI toolkit.

Use it when adding or migrating video-player screens, connecting a player to a View, or embedding an existing Android View in Compose.

It helps avoid mixing old and new playback APIs and prevents player lifetime and fullscreen-handling mistakes.

media3-view-ui-player — Skill for Claude Code and Codex by sunnat629

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add sunnat629/android-media-pack --skill media3-view-ui-player

Clone the repo

git clone --depth 1 https://github.com/sunnat629/android-media-pack

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/sunnat629/android-media-pack/media3-view-ui-player/github.svg)](https://agentmods.dev/skills/sunnat629/android-media-pack/media3-view-ui-player)

Your own site

<a href="https://agentmods.dev/skills/sunnat629/android-media-pack/media3-view-ui-player"><img src="https://agentmods.dev/badge/skills/sunnat629/android-media-pack/media3-view-ui-player/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/sunnat629/android-media-pack/media3-view-ui-player"><img src="https://agentmods.dev/badge/skills/sunnat629/android-media-pack/media3-view-ui-player.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 434 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00031	$0.00434
Opus 5	$0.00015	$0.00217
Sonnet 5	$0.00006	$0.00087
Haiku 4.5	$0.00003	$0.00043

Measured 10d ago against content hash a14f4451dd23, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

media3-view-ui-player scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.skills/media/ui/media3-view-ui-player/SKILL.md · 57 lines

What it actually says

Trigger

Use for Android Views playback UI, XML PlayerView, ViewBinding screens, or Compose screens that must host existing Views.

Rules

Prefer media3-compose-ui-material3 for new Compose-first screens.
Pin Media3 to 1.10.1 through the version catalog.
Use androidx.media3.ui.PlayerView; do not use legacy ExoPlayer UI packages.
Attach the player when the screen is active and clear it when the View is destroyed.
Keep player ownership outside fragments/views unless the screen truly owns playback lifetime.
Keep system inset and fullscreen handling explicit; do not let controls overlap bars.
Use AndroidView interop only when migration cost or platform UI needs justify it.

Example

media3-ui = { module = "androidx.media3:media3-ui", version.ref = "media3" }

<androidx.media3.ui.PlayerView
    android:id="@+id/playerView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

Do Not

Do not mix com.google.android.exoplayer2.ui.PlayerView with Media3.
Do not create or release the service-owned player from a View.
Do not use View interop as the default for a new Compose-only screen.

migrate-xml-ui-to-compose
media3-compose-ui-material3
media3-video-playback

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

10d ago First seen · 57 lines · 31 tokens per session scan A a14f4451dd23

Subscribe to this mod's changes

media3-view-ui-player is a skill published in the GitHub repository sunnat629/android-media-pack (13 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 31 tokens to every session and 434 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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