com.ptvag.navigation.sdk.view

Class MapViewOnScaleGestureListener

java.lang.Object

com.ptvag.navigation.sdk.view.MapViewOnScaleGestureListener

All Implemented Interfaces:

ScaleGestureDetector.OnScaleGestureListener, OnScaleGestureListener

public class MapViewOnScaleGestureListener
extends java.lang.Object
implements OnScaleGestureListener

Constructor Summary

Constructors

Constructor and Description
MapViewOnScaleGestureListener(MapView view, float halfResolutionFactor)

Method Summary

Modifier and Type	Method and Description
boolean	isInProgress()
boolean	onScale(ScaleGestureDetector detector) Responds to scaling events for a gesture in progress.
boolean	onScaleBegin(ScaleGestureDetector detector) Responds to the beginning of a scaling gesture.
void	onScaleEnd(ScaleGestureDetector detector) Responds to the end of a scale gesture.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapViewOnScaleGestureListener

public MapViewOnScaleGestureListener(MapView view,
                                     float halfResolutionFactor)

Method Detail

isInProgress

public boolean isInProgress()

Specified by:

isInProgress in interface OnScaleGestureListener

onScaleBegin

public boolean onScaleBegin(ScaleGestureDetector detector)

Description copied from interface: ScaleGestureDetector.OnScaleGestureListener

Responds to the beginning of a scaling gesture. Reported by new pointers going down.

Specified by:

onScaleBegin in interface ScaleGestureDetector.OnScaleGestureListener

Parameters:

detector - The detector reporting the event - use this to retrieve extended info about event state.

Returns:

Whether or not the detector should continue recognizing this gesture. For example, if a gesture is beginning with a focal point outside of a region where it makes sense, onScaleBegin() may return false to ignore the rest of the gesture.

onScale

public boolean onScale(ScaleGestureDetector detector)

Description copied from interface: ScaleGestureDetector.OnScaleGestureListener

Responds to scaling events for a gesture in progress. Reported by pointer motion.

Specified by:

onScale in interface ScaleGestureDetector.OnScaleGestureListener

Parameters:

detector - The detector reporting the event - use this to retrieve extended info about event state.

Returns:

Whether or not the detector should consider this event as handled. If an event was not handled, the detector will continue to accumulate movement until an event is handled. This can be useful if an application, for example, only wants to update scaling factors if the change is greater than 0.01.

onScaleEnd

public void onScaleEnd(ScaleGestureDetector detector)

Description copied from interface: ScaleGestureDetector.OnScaleGestureListener

Responds to the end of a scale gesture. Reported by existing pointers going up. Once a scale has ended, ScaleGestureDetector.getFocusX() and ScaleGestureDetector.getFocusY() will return focal point of the pointers remaining on the screen.

Specified by:

onScaleEnd in interface ScaleGestureDetector.OnScaleGestureListener

Parameters:

detector - The detector reporting the event - use this to retrieve extended info about event state.