ai-agent

FastAdapter

Name: FastAdapter
Author: mikepenz

The bullet proof, fast and easy to use adapter library, which minimizes developing time to a fraction...

3,878 stars490 forksKotlinUpdated 4/9/2026100% free · open source

What it does

FastAdapter is a Kotlin library that lets you build RecyclerView adapters in Android with minimal boilerplate and maximum performance.

When to use it

•You need a scrolling list (RecyclerView) with complex item types and want to avoid writing repetitive ViewHolder code.
•Your app requires fast UI updates (diffing, selections, click handling) without hand‑rolled adapters.
•You want to integrate item extensions (drag‑&‑drop, swipe, expandable) quickly using the same adapter instance.

Ready-to-paste prompt

```kotlin
// Add a selectable, expandable item with a sub‑list in one call
val parent = SampleItem("Parent")
val child1 = SampleItem("Child 1")
val child2 = SampleItem("Child 2")
fastAdapter.itemAdapter.apply {
    add(parent)
    add(child1, parent) // add as child of parent
    add(child2, parent)
    setSelected(parent, true) // auto‑expand
}
```

Heads up: FastAdapter requires AndroidX RecyclerView ≥ 1.2.0 and a minimum compileSdk of 31; using an older Gradle plugin or support library will cause "cannot find symbol IItem" errors.

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/fastadapter && curl -fsSL https://workflowstacks.com/api/skills/fastadapter/claude-skill -o ~/.claude/skills/fastadapter/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/fastadapter && curl -fsSL https://workflowstacks.com/api/skills/fastadapter/claude-skill -o ~/.claude/skills/fastadapter/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

mikepenz

Language

Kotlin