android.text.style
Class DynamicDrawableSpan

java.lang.Object
  android.text.style.CharacterStyle
      android.text.style.MetricAffectingSpan
          android.text.style.ReplacementSpan
              android.text.style.DynamicDrawableSpan

All Implemented Interfaces:

UpdateLayout

Direct Known Subclasses:

ImageSpan

public abstract class DynamicDrawableSpan
extends ReplacementSpan

Nested Class Summary

Nested classes/interfaces inherited from class android.text.style.MetricAffectingSpan

MetricAffectingSpan.Passthrough

Constructor Summary

DynamicDrawableSpan()

Method Summary

void	draw(Canvas canvas, CharSequence text, int start, int end, float x, int top, int y, int bottom, Paint paint)
abstract Drawable	getDrawable() Your subclass must implement this method to provide the bitmap to be drawn.
int	getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm)

Methods inherited from class android.text.style.ReplacementSpan

updateDrawState, updateMeasureState

Methods inherited from class android.text.style.MetricAffectingSpan

getUnderlying

Methods inherited from class android.text.style.CharacterStyle

wrap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DynamicDrawableSpan

public DynamicDrawableSpan()

Method Detail

getDrawable

public abstract Drawable getDrawable()

Your subclass must implement this method to provide the bitmap to be drawn. The dimensions of the bitmap must be the same from each call to the next.

getSize

public int getSize(Paint paint,
                   CharSequence text,
                   int start,
                   int end,
                   Paint.FontMetricsInt fm)

Specified by:

getSize in class ReplacementSpan

draw

public void draw(Canvas canvas,
                 CharSequence text,
                 int start,
                 int end,
                 float x,
                 int top,
                 int y,
                 int bottom,
                 Paint paint)

Specified by:

draw in class ReplacementSpan