ActionScript® 3.0 Reference for the Adobe® Flash® Platform
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flash.events 

InvokeEvent  - AS3

Packageflash.events
Classpublic class InvokeEvent
InheritanceInvokeEvent Inheritance Event Inheritance Object

Language Version: ActionScript 3.0
Runtime Versions: AIR 1.0

The NativeApplication object of an AIR application dispatches an invoke event when the application is invoked.

The NativeApplication object always dispatches an invoke event when an application is launched, but the event may be dispatched at other times as well. For example, a running application dispatches an additional InvokeEvent when a user activates a file associated with the application.

Only a single instance of a particular application can be launched. Subsequent attempts to launch the application will result in a new invoke event dispatched by the NativeApplication object of the running instance. It is an application's responsibility to handle this event and take the appropriate action, such as opening a new application window to display the data in a file.

InvokeEvent objects are dispatched by the NativeApplication object (NativeApplication.nativeApplication). To receive invoke events, call the addEventListener() method of the NativeApplication object. When an event listener registers for an invoke event, it will also receive all invoke events that occurred before the registration. These earlier events are dispatched after the call to addEventListener() returns, but not necessarily before a new invoke event that might be might be dispatched after registration. Thus, you should not rely on dispatch order.

Related API Elements



Public Properties
 PropertyDefined By
      arguments : Array
[read-only] The array of string arguments passed during this invocation.
InvokeEvent
 Inheritedbubbles : Boolean
[read-only] Indicates whether an event is a bubbling event.
Event
 Inheritedcancelable : Boolean
[read-only] Indicates whether the behavior associated with the event can be prevented.
Event
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
      currentDirectory : File
[read-only] The directory that should be used to resolve any relative paths in the arguments array.
InvokeEvent
 InheritedcurrentTarget : Object
[read-only] The object that is actively processing the Event object with an event listener.
Event
 InheritedeventPhase : uint
[read-only] The current phase in the event flow.
Event
      reason : String
[read-only] The reason for this InvokeEvent.
InvokeEvent
 Inheritedtarget : Object
[read-only] The event target.
Event
 Inheritedtype : String
[read-only] The type of event.
Event
Public Methods
 MethodDefined By
  
    InvokeEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false, dir:File = null, argv:Array = null, reason:String = "standard")
The constructor function for the InvokeEvent class.
InvokeEvent
  
    clone():Event
[override] Creates a new copy of this event.
InvokeEvent
 Inherited
formatToString(className:String, ... arguments):String
A utility function for implementing the toString() method in custom ActionScript 3.0 Event classes.
Event
 Inherited
Indicates whether an object has a specified property defined.
Object
 Inherited
Checks whether the preventDefault() method has been called on the event.
Event
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
Cancels an event's default behavior if that behavior can be canceled.
Event
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
Prevents processing of any event listeners in the current node and any subsequent nodes in the event flow.
Event
 Inherited
Prevents processing of any event listeners in nodes subsequent to the current node in the event flow.
Event
 Inherited
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
Returns a string containing all the properties of the Event object.
Event
 Inherited
Returns the primitive value of the specified object.
Object
Public Constants
 ConstantDefined By
      INVOKE : String = "invoke"
[static] The InvokeEvent.INVOKE constant defines the value of the type property of an InvokeEvent object.
InvokeEvent
Property Detail
    

arguments

property
arguments:Array  [read-only]

Runtime Versions: AIR 1.0

The array of string arguments passed during this invocation. If this is a command line invocation, the array contains the command line arguments (excluding the process name).

On mobile platforms, this property contains the array of options with which the application was launched, not the command-line arguments. Additionally, on mobile platforms, when reason is InvokeEventReason.OPEN_URL, the contents of the arguments Array vary, as follows:

  • Another application or browser invokes the application with a custom URL (iOS and Android):
    argumentsiOSAndroid
    InvokeEvent.arguments.length32
    InvokeEvent.arguments[0]urlurl
    InvokeEvent.arguments[1]source app idaction id
    InvokeEvent.arguments[2]nullNA
  • The system invokes the application to open an associated file type (iOS and Android):
    argumentsiOSAndroid
    InvokeEvent.arguments.length32
    InvokeEvent.arguments[0]urlurl
    InvokeEvent.arguments[1]nullaction id
    InvokeEvent.arguments[2]nullNA
  • Another application invokes the application using the document interaction controller (iOS only):
    argumentsiOS
    InvokeEvent.arguments.length3
    InvokeEvent.arguments[0]url
    InvokeEvent.arguments[1]source app id
    InvokeEvent.arguments[2]annotation

Note: When multiple files are selected and opened on Mac® OS X, AIR dispatches a single invoke event containing the names of all the selected files in the arguments array. On Windows® and Linux, however, AIR dispatches a separate invoke event for each selected file containing only that filename in the arguments array.



Implementation
    public function get arguments():Array
    

currentDirectory

property 
currentDirectory:File  [read-only]

Runtime Versions: AIR 1.0

The directory that should be used to resolve any relative paths in the arguments array.

If an application is started from the command line, this property is typically set to the current working directory of the command line shell from which the application was started. If an application is launched from the GUI shell, this is typically the file system root.



Implementation
    public function get currentDirectory():File
    

reason

property 
reason:String  [read-only]

Runtime Versions: AIR 1.5.1

The reason for this InvokeEvent. This property indicates whether the application was launched manually by the user or automatically at login. Possible values are enumerated as constants in the InvokeEventReason class:

InvokeEventReason constantMeaning
LOGINLaunched automatically at at login.
NOTIFICATIONLaunched in reponse to a notification (iOS only).
OPEN_URLLaunched because the application was invoked by another application.
STANDARDLaunched for any other reason.

Note: On mobile platforms, the reason property is never set to LOGIN.



Implementation
    public function get reason():String

Related API Elements

Constructor Detail
    

InvokeEvent

()Constructor
public function InvokeEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false, dir:File = null, argv:Array = null, reason:String = "standard")

Language Version: ActionScript 3.0
Runtime Versions: AIR 1.0

The constructor function for the InvokeEvent class.

Parameters
type:String — The type of the event, accessible as Event.type.
 
bubbles:Boolean (default = false) — Set to false for an InvokeEvent object.
 
cancelable:Boolean (default = false) — Set to false for an InvokeEvent object.
 
dir:File (default = null) — The directory that should be used to resolve any relative paths in the arguments array.
 
argv:Array (default = null) — An array of arguments (strings) to pass to the application.
 
reason:String (default = "standard") — the cause of the event: InvokeEventReason.LOGIN, InvokeEventReason.STANDARD, InvokeEventReason.OPEN_URL, or InvokeEventReason.NOTIFICATION. (This parameter is available as of AIR version 1.5.1. OPEN_URL and NOTIFICATION are available as of AIR version 3.5.)

Related API Elements

Method Detail

    clone

()method
override public function clone():Event

Runtime Versions: AIR 1.0

Creates a new copy of this event.

Returns
Event — The copy of the event.
Constant Detail
    

INVOKE

Constant
public static const INVOKE:String = "invoke"

Language Version: ActionScript 3.0
Runtime Versions: AIR 1.0

The InvokeEvent.INVOKE constant defines the value of the type property of an InvokeEvent object.

The InvokeEvent object has the following properties:

PropertiesValues
argumentsThe array of string arguments passed during this invocation.
currentDirectorya File object representing the directory that should be used to resolve any relative paths in the arguments array.
reasona code indicating whether the invoke event was dispatched because the application started automatically at login (InvokeEventReason.LOGIN), started as a response to a remote notification (InvokeEventReason.NOTIFICATION - iOS only), because the application was invoked by another application (InvokeEventReason.OPEN_URL), or for another reason (InvokeEventReason.STANDARD). Available as of AIR version 1.5.1.
bubblesfalse.
cancelablefalse; there is no default behavior to cancel.
currentTargetIndicates the object that is actively processing this InvokeEvent object with an event listener.
targetAlways the NativeApplication object.

Related API Elements