java.lang.Object | |
↳ | android.view.ScaleGestureDetector.SimpleOnScaleGestureListener |
A convenience class to extend when you only want to listen for a subset
of scaling-related events. This implements all methods in
ScaleGestureDetector.OnScaleGestureListener
but does nothing.
onScale(ScaleGestureDetector)
returns
false
so that a subclass can retrieve the accumulated scale
factor in an overridden onScaleEnd.
onScaleBegin(ScaleGestureDetector)
returns
true
.
Public Constructors | |||||||||||
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Public Methods | |||||||||||
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Responds to scaling events for a gesture in progress.
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Responds to the beginning of a scaling gesture.
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Responds to the end of a scale gesture.
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Inherited Methods | |||||||||||
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From class
java.lang.Object
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From interface
android.view.ScaleGestureDetector.OnScaleGestureListener
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Responds to scaling events for a gesture in progress. Reported by pointer motion.
detector | The detector reporting the event - use this to retrieve extended info about event state. |
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Responds to the beginning of a scaling gesture. Reported by new pointers going down.
detector | The detector reporting the event - use this to retrieve extended info about event state. |
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Responds to the end of a scale gesture. Reported by existing
pointers going up.
Once a scale has ended, getFocusX()
and getFocusY()
will return focal point
of the pointers remaining on the screen.
detector | The detector reporting the event - use this to retrieve extended info about event state. |
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