public static class ChartScaleGestureDetector.SimpleOnScaleGestureListener extends Object implements ChartScaleGestureDetector.OnScaleGestureListener
ChartScaleGestureDetector.OnScaleGestureListener
but does nothing.
ChartScaleGestureDetector.OnScaleGestureListener.onScale(ChartScaleGestureDetector)
returns
false
so that a subclass can retrieve the accumulated scale
factor in an overridden onScaleEnd.
ChartScaleGestureDetector.OnScaleGestureListener.onScaleBegin(ChartScaleGestureDetector)
returns
true
.Constructor and Description |
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SimpleOnScaleGestureListener() |
Modifier and Type | Method and Description |
---|---|
boolean |
onScale(ChartScaleGestureDetector detector)
Responds to scaling events for a gesture in progress.
|
boolean |
onScaleBegin(ChartScaleGestureDetector detector)
Responds to the beginning of a scaling gesture.
|
void |
onScaleEnd(ChartScaleGestureDetector detector)
Responds to the end of a scale gesture.
|
public boolean onScale(ChartScaleGestureDetector detector)
ChartScaleGestureDetector.OnScaleGestureListener
onScale
in interface ChartScaleGestureDetector.OnScaleGestureListener
detector
- The detector reporting the event - use this to
retrieve extended info about event state.public boolean onScaleBegin(ChartScaleGestureDetector detector)
ChartScaleGestureDetector.OnScaleGestureListener
onScaleBegin
in interface ChartScaleGestureDetector.OnScaleGestureListener
detector
- The detector reporting the event - use this to
retrieve extended info about event state.public void onScaleEnd(ChartScaleGestureDetector detector)
ChartScaleGestureDetector.OnScaleGestureListener
ChartScaleGestureDetector.getFocusX()
and ChartScaleGestureDetector.getFocusY()
will return focal point
of the pointers remaining on the screen.onScaleEnd
in interface ChartScaleGestureDetector.OnScaleGestureListener
detector
- The detector reporting the event - use this to
retrieve extended info about event state.