java.lang.Object | |
↳ | android.view.GestureDetector.SimpleOnGestureListener |
A convenience class to extend when you only want to listen for a subset
of all the gestures. This implements all methods in the
GestureDetector.OnGestureListener
and
GestureDetector.OnDoubleTapListener
but does
nothing and return
false
for all applicable methods.
Public Constructors | |||||||||||
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Public Methods | |||||||||||
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Notified when a double-tap occurs.
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Notified when an event within a double-tap gesture occurs, including
the down, move, and up events.
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Notified when a tap occurs with the down
MotionEvent
that triggered it.
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Notified of a fling event when it occurs with the initial on down
MotionEvent
and the matching up
MotionEvent
.
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Notified when a long press occurs with the initial on down
MotionEvent
that trigged it.
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Notified when a scroll occurs with the initial on down
MotionEvent
and the
current move
MotionEvent
.
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The user has performed a down
MotionEvent
and not performed
a move or up yet.
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Notified when a single-tap occurs.
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Notified when a tap occurs with the up
MotionEvent
that triggered it.
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[Expand]
Inherited Methods
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Notified when a double-tap occurs.
e | The down motion event of the first tap of the double-tap. |
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Notified when an event within a double-tap gesture occurs, including the down, move, and up events.
e | The motion event that occurred during the double-tap gesture. |
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Notified when a tap occurs with the down
MotionEvent
that triggered it. This will be triggered immediately for
every down event. All other events should be preceded by this.
e | The down motion event. |
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Notified of a fling event when it occurs with the initial on down
MotionEvent
and the matching up
MotionEvent
. The calculated velocity is supplied along
the x and y axis in pixels per second.
e1 | The first down motion event that started the fling. |
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e2 | The move motion event that triggered the current onFling. |
velocityX | The velocity of this fling measured in pixels per second along the x axis. |
velocityY | The velocity of this fling measured in pixels per second along the y axis. |
Notified when a long press occurs with the initial on down
MotionEvent
that trigged it.
e | The initial on down motion event that started the longpress. |
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Notified when a scroll occurs with the initial on down
MotionEvent
and the
current move
MotionEvent
. The distance in x and y is also supplied for
convenience.
e1 | The first down motion event that started the scrolling. |
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e2 | The move motion event that triggered the current onScroll. |
distanceX |
The distance along the X axis that has been scrolled since the last
call to onScroll. This is NOT the distance between
e1
and
e2
.
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distanceY |
The distance along the Y axis that has been scrolled since the last
call to onScroll. This is NOT the distance between
e1
and
e2
.
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The user has performed a down
MotionEvent
and not performed
a move or up yet. This event is commonly used to provide visual
feedback to the user to let them know that their action has been
recognized i.e. highlight an element.
e | The down motion event |
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Notified when a single-tap occurs.
Unlike
onSingleTapUp(MotionEvent)
, this
will only be called after the detector is confident that the user's
first tap is not followed by a second tap leading to a double-tap
gesture.
e | The down motion event of the single-tap. |
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Notified when a tap occurs with the up
MotionEvent
that triggered it.
e | The up motion event that completed the first tap |
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