# RelativeSizeSpan
Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
# RelativeSizeSpan
*** ** * ** ***
Kotlin\|[Java](https://developer.android.com/reference/android/text/style/RelativeSizeSpan "View this page in Java")
```
open class RelativeSizeSpan : MetricAffectingSpan, ParcelableSpan
```
|---|---|---|----------------------------------------------------------------------------------------------------------------------------|
| [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) ||||
| ↳ | [android.text.style.CharacterStyle](https://developer.android.com/reference/kotlin/android/text/style/CharacterStyle) |||
| | ↳ | [android.text.style.MetricAffectingSpan](https://developer.android.com/reference/kotlin/android/text/style/MetricAffectingSpan) ||
| | | ↳ | [android.text.style.RelativeSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#) |
Uniformly scales the size of the text to which it's attached by a certain proportion.
For example, a`RelativeSizeSpan`that increases the text size by 50% can be constructed like this:
```kotlin
SpannableString string = new SpannableString("Text with relative size span");
string.setSpan(new RelativeSizeSpan(1.5f), 10, 24, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
```
Text increased by 50% with`RelativeSizeSpan`.
## Summary
| Public constructors ||
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
| [RelativeSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#RelativeSizeSpan(android.os.Parcel))`(`src:` `[Parcel](https://developer.android.com/reference/kotlin/android/os/Parcel.html#)`)` Creates a[RelativeSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#)from a parcel. |
| [RelativeSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#RelativeSizeSpan(kotlin.Float))`(`proportion:` `[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html)`)` Creates a[RelativeSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#)based on a proportion. |
| Public methods ||
|--------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| open[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [describeContents](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#describeContents())`()`
|
| open[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html) | [getSizeChange](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#getSizeChange())`()`
|
| open[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getSpanTypeId](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#getSpanTypeId())`()`
|
| open[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | [toString](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#toString())`()`
|
| open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [updateDrawState](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#updateDrawState(android.text.TextPaint))`(`ds:` `[TextPaint](https://developer.android.com/reference/kotlin/android/text/TextPaint.html#)`)`
|
| open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [updateMeasureState](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#updateMeasureState(android.text.TextPaint))`(`ds:` `[TextPaint](https://developer.android.com/reference/kotlin/android/text/TextPaint.html#)`)` Classes that extend MetricAffectingSpan implement this method to update the text formatting in a way that can change the width or height of characters. |
| open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [writeToParcel](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#writeToParcel(android.os.Parcel,%20kotlin.Int))`(`dest:` `[Parcel](https://developer.android.com/reference/kotlin/android/os/Parcel.html#)`, `flags:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Flatten this object in to a Parcel. |
| Inherited functions ||
|---|---|
| From class[MetricAffectingSpan](https://developer.android.com/reference/kotlin/android/text/style/MetricAffectingSpan) |---------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [MetricAffectingSpan](https://developer.android.com/reference/kotlin/android/text/style/MetricAffectingSpan)! | [getUnderlying](https://developer.android.com/reference/kotlin/android/text/style/MetricAffectingSpan#getUnderlying())`()`
Returns "this" for most MetricAffectingSpans, but for MetricAffectingSpans that were generated by[wrap](https://developer.android.com/reference/kotlin/android/text/style/CharacterStyle#wrap(android.text.style.CharacterStyle)), returns the underlying MetricAffectingSpan.
| ||
| From class[CharacterStyle](https://developer.android.com/reference/kotlin/android/text/style/CharacterStyle) |-----------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [updateDrawState](https://developer.android.com/reference/kotlin/android/text/style/CharacterStyle#updateDrawState(android.text.TextPaint))`(`tp:` `[TextPaint](https://developer.android.com/reference/kotlin/android/text/TextPaint.html#)!`)`
| | [CharacterStyle](https://developer.android.com/reference/kotlin/android/text/style/CharacterStyle)! | [wrap](https://developer.android.com/reference/kotlin/android/text/style/CharacterStyle#wrap(android.text.style.CharacterStyle))`(`cs:` `[CharacterStyle](https://developer.android.com/reference/kotlin/android/text/style/CharacterStyle)!`)`
A given CharacterStyle can only applied to a single region of a given Spanned. If you need to attach the same CharacterStyle to multiple regions, you can use this method to wrap it with a new object that will have the same effect but be a distinct object so that it can also be attached without conflict.
| ||
## Public constructors
### RelativeSizeSpan
Added in[API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
RelativeSizeSpan(src: Parcel)
```
Creates a[RelativeSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#)from a parcel.
| Parameters ||
|-------|--------------------------------------------------------------------------------------------------------------|
| `src` | [Parcel](https://developer.android.com/reference/kotlin/android/os/Parcel.html#):This value cannot be`null`. |
### RelativeSizeSpan
Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
RelativeSizeSpan(proportion: Float)
```
Creates a[RelativeSizeSpan](https://developer.android.com/reference/kotlin/android/text/style/RelativeSizeSpan#)based on a proportion.
| Parameters ||
|--------------|-------------------------------------------------------------------------------------------------------------------------------------------------------|
| `proportion` | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html):the proportion with which the text is scaled. Value is 0.0f or greater |
## Public methods
### describeContents
Added in[API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
open fun describeContents(): Int
```
| Return ||
|----------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either`0`or[android.os.Parcelable#CONTENTS_FILE_DESCRIPTOR](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#CONTENTS_FILE_DESCRIPTOR:kotlin.Int) |
### getSizeChange
Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
open fun getSizeChange(): Float
```
| Return ||
|--------------------------------------------------------------------------------|-----------------------------------------------------|
| [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html) | the proportion with which the text size is changed. |
### getSpanTypeId
Added in[API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
open fun getSpanTypeId(): Int
```
### toString
Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
open fun toString(): String
```
| Return ||
|----------------------------------------------------------------------------------|----------------------------------------|
| [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | a string representation of the object. |
### updateDrawState
Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
open fun updateDrawState(ds: TextPaint): Unit
```
| Parameters ||
|------|----------------------------------------------------------------------------------------------------------------------|
| `ds` | [TextPaint](https://developer.android.com/reference/kotlin/android/text/TextPaint.html#):This value cannot be`null`. |
### updateMeasureState
Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
open fun updateMeasureState(ds: TextPaint): Unit
```
Classes that extend MetricAffectingSpan implement this method to update the text formatting in a way that can change the width or height of characters.
| Parameters ||
|-------------|----------------------------------------------------------------------------------------------------------------------|
| `textPaint` | the paint used for drawing the text This value cannot be`null`. |
| `ds` | [TextPaint](https://developer.android.com/reference/kotlin/android/text/TextPaint.html#):This value cannot be`null`. |
### writeToParcel
Added in[API level 3](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
open fun writeToParcel(
dest: Parcel,
flags: Int
): Unit
```
Flatten this object in to a Parcel.
| Parameters ||
|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `dest` | [Parcel](https://developer.android.com/reference/kotlin/android/os/Parcel.html#):This value cannot be`null`. |
| `flags` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):Additional flags about how the object should be written. May be 0 or[PARCELABLE_WRITE_RETURN_VALUE](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#PARCELABLE_WRITE_RETURN_VALUE:kotlin.Int). Value is either`0`or a combination of[android.os.Parcelable#PARCELABLE_WRITE_RETURN_VALUE](https://developer.android.com/reference/kotlin/android/os/Parcelable.html#PARCELABLE_WRITE_RETURN_VALUE:kotlin.Int), and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES |