TypefaceSpan

public class TypefaceSpan
extends MetricAffectingSpan implements ParcelableSpan

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

Span that updates the typeface of the text it's attached to. The TypefaceSpan can be constructed either based on a font family or based on a Typeface. When TypefaceSpan(String) is used, the previous style of the TextView is kept. When TypefaceSpan(Typeface) is used, the Typeface style replaces the TextView's style.

For example, let's consider a TextView with android:textStyle="italic" and a typeface created based on a font from resources, with a bold style. When applying a TypefaceSpan based the typeface, the text will only keep the bold style, overriding the TextView's textStyle. When applying a TypefaceSpan based on a font family: "monospace", the resulted text will keep the italic style.

 Typeface myTypeface = Typeface.create(ResourcesCompat.getFont(context, R.font.acme),
 Typeface.BOLD);
 SpannableString string = new SpannableString("Text with typeface span.");
 string.setSpan(new TypefaceSpan(myTypeface), 10, 18, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 string.setSpan(new TypefaceSpan("monospace"), 19, 22, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

Text with TypefaceSpans constructed based on a font from resource and from a font family.

Summary

Inherited constants

From interface android.os.Parcelable

`int`	`CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int`	`PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `writeToParcel(Parcel, int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

Public constructors
`TypefaceSpan(Typeface typeface)` Constructs a `TypefaceSpan` from a `Typeface`.
`TypefaceSpan(Parcel src)` Constructs a `TypefaceSpan` from a parcel.
`TypefaceSpan(String family)` Constructs a `TypefaceSpan` based on the font family.

Public methods
`int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`String`	`getFamily()` Returns the font family name set in the span.
`int`	`getSpanTypeId()` Return a special type identifier for this span class.
`Typeface`	`getTypeface()` Returns the typeface set in the span.
`String`	`toString()` Returns a string representation of the object.
`void`	`updateDrawState(TextPaint ds)`
`void`	`updateMeasureState(TextPaint paint)` 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

From class android.text.style.MetricAffectingSpan

`MetricAffectingSpan`	`getUnderlying()` Returns "this" for most MetricAffectingSpans, but for MetricAffectingSpans that were generated by `CharacterStyle.wrap(CharacterStyle)`, returns the underlying MetricAffectingSpan.
`abstract void`	`updateMeasureState(TextPaint textPaint)` Classes that extend MetricAffectingSpan implement this method to update the text formatting in a way that can change the width or height of characters.

From class android.text.style.CharacterStyle

`CharacterStyle`	`getUnderlying()` Returns "this" for most CharacterStyles, but for CharacterStyles that were generated by `wrap(CharacterStyle)`, returns the underlying CharacterStyle.
`abstract void`	`updateDrawState(TextPaint tp)`
`static CharacterStyle`	`wrap(CharacterStyle cs)` A given CharacterStyle can only applied to a single region of a given Spanned.

From class java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

From interface android.text.ParcelableSpan


      getSpanTypeId()

Return a special type identifier for this span class.

From interface android.os.Parcelable

`abstract int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void`	`writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

Public constructors

public TypefaceSpan (Typeface typeface)

Constructs a TypefaceSpan from a Typeface. The previous style of the TextPaint is overridden and the style of the typeface is used.

Parameters
`typeface`	`Typeface`: the typeface. This value cannot be `null`.

TypefaceSpan

public TypefaceSpan (Parcel src)

Constructs a TypefaceSpan from a parcel.

Parameters
`src`	`Parcel`: This value cannot be `null`.

TypefaceSpan

public TypefaceSpan (String family)

Constructs a TypefaceSpan based on the font family. The previous style of the TextPaint is kept. If the font family is null, the text paint is not modified.

Parameters
`family`	`String`: The font family for this typeface. Examples include "monospace", "serif", and "sans-serif". This value may 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(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`

getFamily

public String getFamily ()

Returns the font family name set in the span.

Returns
`String`	the font family name. This value may be `null`.

getSpanTypeId

public int getSpanTypeId ()

Return a special type identifier for this span class.

Returns
`int`

getTypeface

public Typeface getTypeface ()

Returns the typeface set in the span.

Returns
`Typeface`	the typeface set. This value may be `null`.

toString

public String toString ()

Returns a string representation of the object.

Returns
`String`	a string representation of the object.

updateDrawState

public void updateDrawState (TextPaint ds)

Parameters
`ds`	`TextPaint`: This value cannot be `null`.

updateMeasureState

public void updateMeasureState (TextPaint paint)

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
`paint`	`TextPaint`: This value cannot be `null`.