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<div class="subTitle">com.badlogic.gdx.input
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<h2 title="Interface GestureDetector.GestureListener" class="title">Interface GestureDetector.GestureListener
</h2>
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<dl>
<dt>All Known Implementing Classes:
</dt>
<dd><a href="../../../../com/badlogic/gdx/graphics/g3d/utils/CameraInputController.CameraGestureListener.html" title="class in com.badlogic.gdx.graphics.g3d.utils">CameraInputController.CameraGestureListener
</a>,
<a href="../../../../com/badlogic/gdx/input/GestureDetector.GestureAdapter.html" title="class in com.badlogic.gdx.input">GestureDetector.GestureAdapter
</a></dd>
</dl>
<dl>
<dt>Enclosing class:
</dt>
<dd><a href="../../../../com/badlogic/gdx/input/GestureDetector.html" title="class in com.badlogic.gdx.input">GestureDetector
</a></dd>
</dl>
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<pre>public static interface
<span class="strong">GestureDetector.GestureListener
</span></pre>
<div class="block">Register an instance of this class with a
<a href="../../../../com/badlogic/gdx/input/GestureDetector.html" title="class in com.badlogic.gdx.input"><code>GestureDetector
</code></a> to receive gestures such as taps, long presses, flings,
panning or pinch zooming. Each method returns a boolean indicating if the event should be handed to the next listener (false
to hand it to the next listener, true otherwise).
</div>
<dl><dt><span class="strong">Author:
</span></dt>
<dd>mzechner
</dd></dl>
</li>
</ul>
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<h3>Method Summary
</h3>
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<caption><span>Methods
</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type
</th>
<th class="colLast" scope="col">Method and Description
</th>
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<tr class="altColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../com/badlogic/gdx/input/GestureDetector.GestureListener.html#fling(float, float, int)">fling
</a></strong>(float
velocityX,
float
velocityY,
int
button)
</code>
<div class="block">Called when the user dragged a finger over the screen and lifted it.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../com/badlogic/gdx/input/GestureDetector.GestureListener.html#longPress(float, float)">longPress
</a></strong>(float
x,
float
y)
</code> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../com/badlogic/gdx/input/GestureDetector.GestureListener.html#pan(float, float, float, float)">pan
</a></strong>(float
x,
float
y,
float
deltaX,
float
deltaY)
</code>
<div class="block">Called when the user drags a finger over the screen.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../com/badlogic/gdx/input/GestureDetector.GestureListener.html#panStop(float, float, int, int)">panStop
</a></strong>(float
x,
float
y,
int
pointer,
int
button)
</code>
<div class="block">Called when no longer panning.
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../com/badlogic/gdx/input/GestureDetector.GestureListener.html#pinch(com.badlogic.gdx.math.Vector2, com.badlogic.gdx.math.Vector2, com.badlogic.gdx.math.Vector2, com.badlogic.gdx.math.Vector2)">pinch
</a></strong>(
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2
</a> initialPointer1,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2
</a> initialPointer2,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2
</a> pointer1,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2
</a> pointer2)
</code>
<div class="block">Called when a user performs a pinch zoom gesture.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../com/badlogic/gdx/input/GestureDetector.GestureListener.html#tap(float, float, int, int)">tap
</a></strong>(float
x,
float
y,
int
count,
int
button)
</code>
<div class="block">Called when a tap occured.
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../com/badlogic/gdx/input/GestureDetector.GestureListener.html#touchDown(float, float, int, int)">touchDown
</a></strong>(float
x,
float
y,
int
pointer,
int
button)
</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../com/badlogic/gdx/input/GestureDetector.GestureListener.html#zoom(float, float)">zoom
</a></strong>(float
initialDistance,
float
distance)
</code>
<div class="block">Called when the user performs a pinch zoom gesture.
</div>
</td>
</tr>
</table>
</li>
</ul>
</li>
</ul>
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<h3>Method Detail
</h3>
<a name="touchDown(float, float, int, int)">
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<li class="blockList">
<h4>touchDown
</h4>
<pre>boolean
touchDown(float
x,
float
y,
int
pointer,
int
button)
</pre>
<dl><dt><span class="strong">See Also:
</span></dt><dd><a href="../../../../com/badlogic/gdx/InputProcessor.html#touchDown(int, int, int, int)"><code>InputProcessor.touchDown(int, int, int, int)
</code></a></dd></dl>
</li>
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<a name="tap(float, float, int, int)">
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<h4>tap
</h4>
<pre>boolean
tap(float
x,
float
y,
int
count,
int
button)
</pre>
<div class="block">Called when a tap occured. A tap happens if a touch went down on the screen and was lifted again without moving outside
of the tap square. The tap square is a rectangular area around the initial touch position as specified on construction
time of the
<a href="../../../../com/badlogic/gdx/input/GestureDetector.html" title="class in com.badlogic.gdx.input"><code>GestureDetector
</code></a>.
</div>
<dl><dt><span class="strong">Parameters:
</span></dt><dd><code>count
</code> - the number of taps.
</dd></dl>
</li>
</ul>
<a name="longPress(float, float)">
<!-- -->
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<ul class="blockList">
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<h4>longPress
</h4>
<pre>boolean
longPress(float
x,
float
y)
</pre>
</li>
</ul>
<a name="fling(float, float, int)">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>fling
</h4>
<pre>boolean
fling(float
velocityX,
float
velocityY,
int
button)
</pre>
<div class="block">Called when the user dragged a finger over the screen and lifted it. Reports the last known velocity of the finger in
pixels per second.
</div>
<dl><dt><span class="strong">Parameters:
</span></dt><dd><code>velocityX
</code> - velocity on x in seconds
</dd><dd><code>velocityY
</code> - velocity on y in seconds
</dd></dl>
</li>
</ul>
<a name="pan(float, float, float, float)">
<!-- -->
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<ul class="blockList">
<li class="blockList">
<h4>pan
</h4>
<pre>boolean
pan(float
x,
float
y,
float
deltaX,
float
deltaY)
</pre>
<div class="block">Called when the user drags a finger over the screen.
</div>
<dl><dt><span class="strong">Parameters:
</span></dt><dd><code>deltaX
</code> - the difference in pixels to the last drag event on x.
</dd><dd><code>deltaY
</code> - the difference in pixels to the last drag event on y.
</dd></dl>
</li>
</ul>
<a name="panStop(float, float, int, int)">
<!-- -->
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<ul class="blockList">
<li class="blockList">
<h4>panStop
</h4>
<pre>boolean
panStop(float
x,
float
y,
int
pointer,
int
button)
</pre>
<div class="block">Called when no longer panning.
</div>
</li>
</ul>
<a name="zoom(float, float)">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>zoom
</h4>
<pre>boolean
zoom(float
initialDistance,
float
distance)
</pre>
<div class="block">Called when the user performs a pinch zoom gesture. The original distance is the distance in pixels when the gesture
started.
</div>
<dl><dt><span class="strong">Parameters:
</span></dt><dd><code>initialDistance
</code> - distance between fingers when the gesture started.
</dd><dd><code>distance
</code> - current distance between fingers.
</dd></dl>
</li>
</ul>
<a name="pinch(com.badlogic.gdx.math.Vector2, com.badlogic.gdx.math.Vector2, com.badlogic.gdx.math.Vector2, com.badlogic.gdx.math.Vector2)">
<!-- -->
</a>
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<h4>pinch
</h4>
<pre>boolean
pinch(
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2
</a> initialPointer1,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2
</a> initialPointer2,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2
</a> pointer1,
<a href="../../../../com/badlogic/gdx/math/Vector2.html" title="class in com.badlogic.gdx.math">Vector2
</a> pointer2)
</pre>
<div class="block">Called when a user performs a pinch zoom gesture. Reports the initial positions of the two involved fingers and their
current positions.
</div>
<dl><dt><span class="strong">Parameters:
</span></dt><dd><code>initialPointer1
</code> -
</dd><dd><code>initialPointer2
</code> -
</dd><dd><code>pointer1
</code> -
</dd><dd><code>pointer2
</code> -
</dd></dl>
</li>
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