ImageGestureRecognizer Class

Constructor

Allows simultaneous execution if the platform specific views do no match. Default is true.

Whether tracked touches are cleared when the gesture ends or fails, default is false. By setting to true, you allow the gesture to possibly execute again with a different touch even if the original touch it failed on is still on-going. This is a special case, so be sure to watch for problems if you set this to true, as leaving it false ensures the most correct behavior, especially with lots of gestures at once.

The current tracked touches for the gesture

Custom data for the gesture that you can attach, or just leave null if you don't need this This is useful if you want to retrieve this in a callback function, but it is not require for the gesture to work properly

Change in focus x in pixels

Change in focus y in pixels

The amount that the path must change direction (in radians) to count as a new direction (0.39 is 1.8 of PI). Default is 0.3.

The distance (in pixels) the gesture focus has moved from where it started along the x axis

The distance (in pixels) the gesture focus has moved from where it started along the y axis

Whether the gesture is Enabled. Default is true.

Focus x value in pixels (average of all touches)

Focus y value in pixels (average of all touches)

The images that should be compared against to find a match

Calculated image from the gesture

True if gesture is in process of restarting, false otherwise

The last time (in milliseconds) that was needed to calculate the matched gesture

The matched gesture image or null if no match

The maximum number of touches to track. This gesture will never track more touches than this. Default is usually 1 or 2. Not all gestures will honor values higher than 1.

The maximum number of distinct paths for each image. Gesture will reset when max path count is hit. The default is 1.

Minimum difference beteen points in units to count as a new point. Default is 0.1.

The minimum number of touches to track. This gesture will not start unless this many touches are tracked. Default is usually 1 or 2. Not all gestures will honor values higher than 1.

The minimum number of points before the gesture will recognize - default is 2

The current number of distinct paths that have been drawn

A platform specific view object that this gesture can execute in, null if none

The platform specific view scale (default is 1.0). Change this if the view this gesture is attached to is being scaled.

Average pressure of all tracked touches

Previous focus x

Previous focus y

Whether additional touches were added to the gesture since the last execute state.

If this gesture reaches the EndPending state and the specified gestures fail, this gestures will end. If the specified gesture begins, executes or ends, then this gesture will immediately fail.

Convenience method to add / remove one gesture to require failure on. Set to null to clear all require gestures to fail.

This gesture does not reset on end like most gestures - you must reset it manually when you get the image out of it you want

The amount that the gesture image must match an image from the set to count as a match (0 - 1). Default is 0.8.

The speed of the gesture in pixels using focus

Start focus x value in pixels (average of all touches)

Start focus y value in pixels (average of all touches)

Get the current gesture recognizer state

The distance in units that the touch must move before the gesture begins - default is 0.4

Whether the current number of tracked touches is within the min and max number of touches to track

Velocity x in pixels using focus

Velocity y in pixels using focus

Require a gesture to fail in order for this gesture to end

Allows the simultaneous execution with other gesture. This links both gestures so this method only needs to be called once on one of the gestures. Pass null to allow simultaneous execution with all gestures.

Allows simultaneous execution with all gestures

Determines whether any tracked touches are within the distance of the starting point of each tracked touch.

Allows the gesture to restart even if the touches are not lifted. This is only valid when called from the "Ended" state.

Calculate the focus of the gesture

Calculate the focus of the gesture

Disallows the simultaneous execution with other gesture. This unlinks both gestures so this method only needs to be called once on one of the gestures. By default, gesures are not allowed to execute simultaneously, so you only need to call this method if you previously allowed the gestures to execute simultaneously. Pass null to disallow simulatneous execution with all gestures (i.e. you previously called AllowSimultaneousExecution with a null value.

Disallows simultaneous execution with all gestures

Dispose of the gesture and ensure it is removed from the global list of active gestures

Get the distance of a length, in units

Gets the distance of a vector, in units

Gets the distance between two points, in units

Restart the gesture with a set of begin touches

Finalizer

Ignore a touch until it is released

Determines whether two points are within a specified distance

Call with the touches that began

Process cancelled touches

Call with the touches that ended

Call with the touches that moved

Remove a gesture needing to fail in order for this gesture to end

Reset the image gesture recognizer

Sets the state of the gesture. Continous gestures should set the executing state every time they change.

Simulate a gesture

Called when state changes

ToString

TouchesBegan

TouchesEnded

TouchesMoved

Track all touches in CurrentTrackedTouches start locations

Begin tracking the specified touch ids

Fires when the maximum path count is exceeded

Fires when state is updated, use this instead of Updated, which has been deprecated. The gesture object has a CurrentTrackedTouches property where you can access the current touches.

Executes when the gesture changes

Number of columns in the images for gestures. For square images (recommended) set to ImageRows.

Number of image rows. Should be greater than 4 and less than 65.

Number of elements in the images for gestures.

The padding for each pixel converted from lines to the pixel image. Supported values are 0, 1 and 2.

Current row bit mask

Masks to shave off exlusive or'd bits that we don't want to include in a row

Log