# R

Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)

# R

*** ** * ** ***

Kotlin\|[Java](https://developer.android.com/reference/android/R "View this page in Java")  

```
class R
```

|---|------------------------------------------------------------------------|
| [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) ||
| ↳ | [android.R](https://developer.android.com/reference/kotlin/android/R#) |

## Summary

|                                         Nested classes                                          ||
|---|----------------------------------------------------------------------------------------------|
|   | [anim](https://developer.android.com/reference/kotlin/android/R.anim) <br />                 |
|   | [animator](https://developer.android.com/reference/kotlin/android/R.animator) <br />         |
|   | [array](https://developer.android.com/reference/kotlin/android/R.array) <br />               |
|   | [attr](https://developer.android.com/reference/kotlin/android/R.attr) <br />                 |
|   | [bool](https://developer.android.com/reference/kotlin/android/R.bool) <br />                 |
|   | [color](https://developer.android.com/reference/kotlin/android/R.color) <br />               |
|   | [dimen](https://developer.android.com/reference/kotlin/android/R.dimen) <br />               |
|   | [drawable](https://developer.android.com/reference/kotlin/android/R.drawable) <br />         |
|   | [fraction](https://developer.android.com/reference/kotlin/android/R.fraction) <br />         |
|   | [id](https://developer.android.com/reference/kotlin/android/R.id) <br />                     |
|   | [integer](https://developer.android.com/reference/kotlin/android/R.integer) <br />           |
|   | [interpolator](https://developer.android.com/reference/kotlin/android/R.interpolator) <br /> |
|   | [layout](https://developer.android.com/reference/kotlin/android/R.layout) <br />             |
|   | [menu](https://developer.android.com/reference/kotlin/android/R.menu) <br />                 |
|   | [mipmap](https://developer.android.com/reference/kotlin/android/R.mipmap) <br />             |
|   | [plurals](https://developer.android.com/reference/kotlin/android/R.plurals) <br />           |
|   | [raw](https://developer.android.com/reference/kotlin/android/R.raw) <br />                   |
|   | [string](https://developer.android.com/reference/kotlin/android/R.string) <br />             |
|   | [style](https://developer.android.com/reference/kotlin/android/R.style) <br />               |
|   | [styleable](https://developer.android.com/reference/kotlin/android/R.styleable) <br />       |
|   | [transition](https://developer.android.com/reference/kotlin/android/R.transition) <br />     |
|   | [xml](https://developer.android.com/reference/kotlin/android/R.xml) <br />                   |

|                               Public constructors                               ||
|------------------------------------------------------------------------------|---|
| [R](https://developer.android.com/reference/kotlin/android/R#R())`()` <br /> |

## Public constructors

### R

```
R()
```