Added in API level 1

Summary: Ctors | Methods | Inherited Methods

GestureDetector.SimpleOnGestureListener

Kotlin |Java

public static class GestureDetector.SimpleOnGestureListener
extends Object implements GestureDetector.OnGestureListener, GestureDetector.OnDoubleTapListener, GestureDetector.OnContextClickListener

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 OnGestureListener, OnDoubleTapListener, and OnContextClickListener but does nothing and return false for all applicable methods.

Summary

Public constructors
`SimpleOnGestureListener()`

Public methods
`boolean`	`onContextClick(MotionEvent e)` Notified when a context click occurs.
`boolean`	`onDoubleTap(MotionEvent e)` Notified when a double-tap occurs.
`boolean`	`onDoubleTapEvent(MotionEvent e)` Notified when an event within a double-tap gesture occurs, including the down, move, and up events.
`boolean`	`onDown(MotionEvent e)` Notified when a tap occurs with the down `MotionEvent` that triggered it.
`boolean`	`onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)` Notified of a fling event when it occurs with the initial on down `MotionEvent` and the matching up `MotionEvent`.
`void`	`onLongPress(MotionEvent e)` Notified when a long press occurs with the initial on down `MotionEvent` that trigged it.
`boolean`	`onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY)` Notified when a scroll occurs with the initial on down `MotionEvent` and the current move `MotionEvent`.
`void`	`onShowPress(MotionEvent e)` The user has performed a down `MotionEvent` and not performed a move or up yet.
`boolean`	`onSingleTapConfirmed(MotionEvent e)` Notified when a single-tap occurs.
`boolean`	`onSingleTapUp(MotionEvent e)` Notified when a tap occurs with the up `MotionEvent` that triggered it.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

From interface


        
          android.view.GestureDetector.OnGestureListener

`abstract boolean`	`onDown(MotionEvent e)` Notified when a tap occurs with the down `MotionEvent` that triggered it.
`abstract boolean`	`onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)` Notified of a fling event when it occurs with the initial on down `MotionEvent` and the matching up `MotionEvent`.
`abstract void`	`onLongPress(MotionEvent e)` Notified when a long press occurs with the initial on down `MotionEvent` that trigged it.
`abstract boolean`	`onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY)` Notified when a scroll occurs with the initial on down `MotionEvent` and the current move `MotionEvent`.
`abstract void`	`onShowPress(MotionEvent e)` The user has performed a down `MotionEvent` and not performed a move or up yet.
`abstract boolean`	`onSingleTapUp(MotionEvent e)` Notified when a tap occurs with the up `MotionEvent` that triggered it.

From interface


        
          android.view.GestureDetector.OnDoubleTapListener

`abstract boolean`	`onDoubleTap(MotionEvent e)` Notified when a double-tap occurs.
`abstract boolean`	`onDoubleTapEvent(MotionEvent e)` Notified when an event within a double-tap gesture occurs, including the down, move, and up events.
`abstract boolean`	`onSingleTapConfirmed(MotionEvent e)` Notified when a single-tap occurs.

From interface


        
          android.view.GestureDetector.OnContextClickListener


        abstract
        
        
        
        
        boolean


      onContextClick(MotionEvent e)

Notified when a context click occurs.

Public constructors

SimpleOnGestureListener

public SimpleOnGestureListener ()

Public methods

onContextClick

Added in API level 23

public boolean onContextClick (MotionEvent e)

Notified when a context click occurs.

Parameters
`e`	`MotionEvent`: This value cannot be `null`.

Returns
`boolean`	true if the event is consumed, else false

onDoubleTap

Added in API level 3

public boolean onDoubleTap (MotionEvent e)

Notified when a double-tap occurs. Triggered on the down event of second tap.

Parameters
`e`	`MotionEvent`: This value cannot be `null`.

Returns
`boolean`	true if the event is consumed, else false

onDoubleTapEvent

Added in API level 3

public boolean onDoubleTapEvent (MotionEvent e)

Notified when an event within a double-tap gesture occurs, including the down, move, and up events.

Parameters
`e`	`MotionEvent`: This value cannot be `null`.

Returns
`boolean`	true if the event is consumed, else false

onDown

Added in API level 1

public boolean onDown (MotionEvent e)

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.

Parameters
`e`	`MotionEvent`: This value cannot be `null`.

Returns
`boolean`

onFling

Added in API level 1

public boolean onFling (MotionEvent e1, 
                MotionEvent e2, 
                float velocityX, 
                float velocityY)

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.

Parameters
`e1`	`MotionEvent`: This value may be `null`.
`e2`	`MotionEvent`: This value cannot be `null`.
`velocityX`	`float`: The velocity of this fling measured in pixels per second along the x axis.
`velocityY`	`float`: The velocity of this fling measured in pixels per second along the y axis.

Returns
`boolean`	true if the event is consumed, else false

onLongPress

Added in API level 1

public void onLongPress (MotionEvent e)

Notified when a long press occurs with the initial on down MotionEvent that trigged it.

Parameters
`e`	`MotionEvent`: This value cannot be `null`.

onScroll

Added in API level 1

public boolean onScroll (MotionEvent e1, 
                MotionEvent e2, 
                float distanceX, 
                float distanceY)

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.

Parameters
`e1`	`MotionEvent`: This value may be `null`.
`e2`	`MotionEvent`: This value cannot be `null`.
`distanceX`	`float`: 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`.
`distanceY`	`float`: 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`.

Returns
`boolean`	true if the event is consumed, else false

onShowPress

Added in API level 1

public void onShowPress (MotionEvent e)

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.

Parameters
`e`	`MotionEvent`: This value cannot be `null`.

onSingleTapConfirmed

Added in API level 3

public boolean onSingleTapConfirmed (MotionEvent e)

Notified when a single-tap occurs.

Unlike OnGestureListener#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.

Parameters
`e`	`MotionEvent`: This value cannot be `null`.

Returns
`boolean`	true if the event is consumed, else false

onSingleTapUp

Added in API level 1

public boolean onSingleTapUp (MotionEvent e)

Notified when a tap occurs with the up MotionEvent that triggered it.

Parameters
`e`	`MotionEvent`: This value cannot be `null`.

Returns
`boolean`	true if the event is consumed, else false