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RelativeSizeSpan

public class RelativeSizeSpan
extends MetricAffectingSpan implements ParcelableSpan

java.lang.Object
   ↳ android.text.style.CharacterStyle
     ↳ android.text.style.MetricAffectingSpan
       ↳ 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:

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

Inherited constants

Public constructors

RelativeSizeSpan(float proportion)

Creates a RelativeSizeSpan based on a proportion.

RelativeSizeSpan(Parcel src)

Creates a RelativeSizeSpan from a parcel.

Public methods

int describeContents()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.

float getSizeChange()
int getSpanTypeId()

Return a special type identifier for this span class.

void updateDrawState(TextPaint ds)

void updateMeasureState(TextPaint ds)

Classes that extend MetricAffectingSpan implement this method to update the text formatting in a way that can change the width or height of characters.

void writeToParcel(Parcel dest, int flags)

Flatten this object in to a Parcel.

Inherited methods

Public constructors

RelativeSizeSpan

public RelativeSizeSpan (float proportion)

Creates a RelativeSizeSpan based on a proportion.

Parameters
proportion float: the proportion with which the text is scaled. Value is 0 or greater

RelativeSizeSpan

public RelativeSizeSpan (Parcel src)

Creates a RelativeSizeSpan from a parcel.

Parameters
src Parcel: This value cannot be null.

Public methods

describeContents

public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
int a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or CONTENTS_FILE_DESCRIPTOR

getSizeChange

public float getSizeChange ()

Returns
float the proportion with which the text size is changed.

getSpanTypeId

public int getSpanTypeId ()

Return a special type identifier for this span class.

Returns
int

updateDrawState

public void updateDrawState (TextPaint ds)

Parameters
ds TextPaint: This value cannot be null.

updateMeasureState

public void updateMeasureState (TextPaint ds)

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
ds TextPaint: This value cannot be null.

writeToParcel

public void writeToParcel (Parcel dest, 
                int flags)

Flatten this object in to a Parcel.

Parameters
dest Parcel: This value cannot be null.

flags int: Additional flags about how the object should be written. May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES