Package pl.droidsonroids.gif

Class MultiCallback

java.lang.Object

pl.droidsonroids.gif.MultiCallback

All Implemented Interfaces:

Drawable.Callback

public class MultiCallback
extends Object
implements Drawable.Callback

Drawable.Callback which allows single Drawable to be associated with multiple callbacks, eg. with multiple Views. If drawable needs to be redrawn all currently associated callbacks are invoked. If Callback is a View it is then invalidated.

Constructor Summary

Constructors

Constructor	Description
MultiCallback()	Equivalent to MultiCallback(boolean) with false value.
MultiCallback(boolean useViewInvalidate)	Set useViewInvalidate to true if displayed Drawable is not supported by Drawable.Callback.invalidateDrawable(Drawable) of the target.

Method Summary

Modifier and Type	Method	Description
void	addView(Drawable.Callback callback)	Associates given Drawable.Callback.
void	invalidateDrawable(Drawable who)
void	removeView(Drawable.Callback callback)	Disassociates given Drawable.Callback.
void	scheduleDrawable(Drawable who, Runnable what, long when)
void	unscheduleDrawable(Drawable who, Runnable what)

Methods inherited from class java.lang.Object

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

Constructor Details

MultiCallback

public MultiCallback()

Equivalent to MultiCallback(boolean) with false value.

MultiCallback

public MultiCallback(boolean useViewInvalidate)

Set useViewInvalidate to true if displayed Drawable is not supported by Drawable.Callback.invalidateDrawable(Drawable) of the target. For example if it is located inside ImageSpan displayed in TextView.

Parameters:

useViewInvalidate - whether View.invalidate() should be used instead of Drawable.Callback.invalidateDrawable(Drawable)

Method Details

invalidateDrawable

public void invalidateDrawable(@NonNull
Drawable who)

Specified by:

invalidateDrawable in interface Drawable.Callback

scheduleDrawable

public void scheduleDrawable(@NonNull
Drawable who,
@NonNull
Runnable what,
long when)

Specified by:

scheduleDrawable in interface Drawable.Callback

unscheduleDrawable

public void unscheduleDrawable(@NonNull
Drawable who,
@NonNull
Runnable what)

Specified by:

unscheduleDrawable in interface Drawable.Callback

addView

public void addView(Drawable.Callback callback)

Associates given Drawable.Callback. If callback has been already added, nothing happens.

Parameters:

callback - Callback to be associated

removeView

public void removeView(Drawable.Callback callback)

Disassociates given Drawable.Callback. If callback is not associated, nothing happens.

Parameters:

callback - Callback to be disassociated