StyleSpan
  public
  
  
  
  class
  StyleSpan
  
  
  
  
  
  
  
    extends MetricAffectingSpan
  
  
  
  
  
      implements
      
        ParcelableSpan
      
  
  
| java.lang.Object | |||
| ↳ | android.text.style.CharacterStyle | ||
| ↳ | android.text.style.MetricAffectingSpan | ||
| ↳ | android.text.style.StyleSpan | ||
Span that allows setting the style of the text it's attached to.
 Possible styles are: Typeface.NORMAL, Typeface.BOLD, Typeface.ITALIC and
 Typeface.BOLD_ITALIC.
 
Note that styles are cumulative -- if both bold and italic are set in separate spans, or if the base style is bold and a span calls for italic, you get bold italic. You can't turn off a style from the base style.
 For example, the StyleSpan can be used like this:
 
 SpannableString string = new SpannableString("Bold and italic text");
 string.setSpan(new StyleSpan(Typeface.BOLD), 0, 4, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 string.setSpan(new StyleSpan(Typeface.ITALIC), 9, 15, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 
 StyleSpan.Summary
Inherited constants | 
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Public constructors | |
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      StyleSpan(Parcel src)
      
      
        Creates a   | 
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      StyleSpan(int style)
      
      
        Creates a   | 
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      StyleSpan(int style, int fontWeightAdjustment)
      
      
        Creates a   | 
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Public methods | |
|---|---|
        
        
        
        
        
        int
     | 
  
    
      
      describeContents()
      
      
        Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.  | 
  
        
        
        
        
        
        int
     | 
  
    
      
      getFontWeightAdjustment()
      
      
        Returns the font weight adjustment specified by this span.  | 
  
        
        
        
        
        
        int
     | 
  
    
      
      getSpanTypeId()
      
      
        Return a special type identifier for this span class.  | 
  
        
        
        
        
        
        int
     | 
  
    
      
      getStyle()
      
      
        Returns the style constant defined in   | 
  
        
        
        
        
        
        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 | |
|---|---|
Public constructors
StyleSpan
public StyleSpan (Parcel src)
Creates a StyleSpan from a parcel.
| Parameters | |
|---|---|
src | 
        
          Parcel: the parcel
 This value cannot be null. | 
      
StyleSpan
public StyleSpan (int style)
Creates a StyleSpan from a style.
| Parameters | |
|---|---|
style | 
        
          int: An integer constant describing the style for this span. Examples
              include bold, italic, and normal. Values are constants defined
              in Typeface. | 
      
StyleSpan
public StyleSpan (int style, 
                int fontWeightAdjustment)Creates a StyleSpan from a style and font weight adjustment.
| Parameters | |
|---|---|
style | 
        
          int: An integer constant describing the style for this span. Examples
              include bold, italic, and normal. Values are constants defined
              in Typeface.
 Value is Typeface.NORMAL, Typeface.BOLD, Typeface.ITALIC, or Typeface.BOLD_ITALIC | 
      
fontWeightAdjustment | 
        
          int: An integer describing the adjustment to be made to the font
              weight. This is added to the value of the current weight returned by
              Typeface.getWeight(). | 
      
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 | 
      
getFontWeightAdjustment
public int getFontWeightAdjustment ()
Returns the font weight adjustment specified by this span.
 This can be Configuration.FONT_WEIGHT_ADJUSTMENT_UNDEFINED. This is added to the
 value of the current weight returned by Typeface.getWeight().
| Returns | |
|---|---|
int | 
        |
getSpanTypeId
public int getSpanTypeId ()
Return a special type identifier for this span class.
| Returns | |
|---|---|
int | 
        |
getStyle
public int getStyle ()
Returns the style constant defined in Typeface.
| Returns | |
|---|---|
int | 
        |
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  | 
      
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: the paint used for drawing the text
 This value cannot be null. | 
      
writeToParcel
public void writeToParcel (Parcel dest, int flags)
Flatten this object in to a Parcel.
| Parameters | |
|---|---|
dest | 
        
          Parcel: The Parcel in which the object should be written.
 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 |