---
title: RtkButton
description: API reference for RtkButton component (iOS Library)
image: https://developers.cloudflare.com/dev-products-preview.png
---

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# RtkButton

A versatile button that follows the RTK Design System. Supports multiple styles, states, and sizes.

## Initializer parameters

| Parameter      | Type                | Required | Default | Description                                           |
| -------------- | ------------------- | -------- | ------- | ----------------------------------------------------- |
| style          | Style               | ❌        | .solid  | The button style (solid, line, icon-left, and others) |
| rtkButtonState | States              | ❌        | .active | The initial state of the button                       |
| size           | Size                | ❌        | .large  | The size of the button                                |
| appearance     | RtkButtonAppearance | ❌        | \-      | Appearance configuration for colors and fonts         |

## Usage Examples

### Basic Usage

Swift

```

import RealtimeKitUI


let button = RtkButton()

button.setTitle("Join", for: .normal)

view.addSubview(button)


```

### With custom style

Swift

```

import RealtimeKitUI


let button = RtkButton(

    style: .line,

    rtkButtonState: .active,

    size: .large

)

button.setTitle("Cancel", for: .normal)

view.addSubview(button)


```

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