OneTouchScaleGestureRecognizer 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 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)

True if gesture is in process of restarting, false otherwise

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 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.

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.

Whether the gesture should reset when it ends

The current scale multiplier. Multiply your current scale value by this to scale.

The current scale multiplier on x axis. Multiply your current x scale value by this to scale.

The current scale multiplier on y axis. Multiply your current y scale value by this to scale.

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 threshold in units that the touch must move to start the gesture. Default is 0.15.

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

Additional multiplier for ScaleMultipliers. This will making scaling happen slower or faster. For this one finger scale gesture, this value is generally a small fraction, like 0.2 (the default). For a UI that starts 0,0 in the bottom left (like Unity), this value should be negative. For most other UI (0,0 in top left), this should be positive.

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 gesture

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

Touches moved

Track all touches in CurrentTrackedTouches start locations

Begin tracking the specified touch ids

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

Log