flash.net

# NetMonitor - AS3

Package | flash.net
Class | public class NetMonitor
Inheritance | NetMonitor EventDispatcher Object

Language Version: | ActionScript 3.0

Runtime Versions: | Flash Player 10.3, AIR 2.7

The NetMonitor class maintains a list of NetStream objects.

Use the NetMonitor class to keep track of NetStream objects in use in an application. An instance of this class dispatches a `netStreamCreate` event whenever a new NetStream object is created.

You can use the NetMonitor class to help track video playback and related events without regard to the specific video player being used. This facility can be helpful when implementing media measurement, analytics, and usage tracking libraries.

Note: NetStream monitoring is not supported by Flash Player in the browser on Android and Blackberry Tablet OS, or by AIR on iOS.

More examples

Monitoring NetStream activity

Related API Elements

NetStream

Public Properties
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| Property | Defined By
--- | --- | ---
|  | constructor : Object A reference to the class object or constructor function for a given object instance. | Object

Public Methods
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| Method | Defined By
--- | --- | ---
|  | addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event. | EventDispatcher
|  | dispatchEvent(event:Event):Boolean Dispatches an event into the event flow. | EventDispatcher
|  | hasEventListener(type:String):Boolean Checks whether the EventDispatcher object has any listeners registered for a specific type of event. | EventDispatcher
|  | hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined. | Object
|  | isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter. | Object
|  | listStreams():Vector.<NetStream> Retrieves all NetStream objects belonging to this NetMonitor object's security context. | NetMonitor
|  | propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable. | Object
|  | removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Removes a listener from the EventDispatcher object. | EventDispatcher
|  | setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations. | Object
|  | toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions. | Object
|  | toString():String Returns the string representation of the specified object. | Object
|  | valueOf():Object Returns the primitive value of the specified object. | Object
|  | willTrigger(type:String):Boolean Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type. | EventDispatcher

Events
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| Event | Summary | Defined By
--- | --- | --- | ---
|  | activate | [broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active. | EventDispatcher
|  | deactivate | [broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive. | EventDispatcher
|  | netStreamCreate | Dispatched when a new NetStream object is created within the security context of this NetMonitor instance. | NetMonitor

Method Detail

### listStreams

()
method

`public function listStreams():Vector.<NetStream>`

Language Version: | ActionScript 3.0

Runtime Versions: | Flash Player 10.3, AIR 2.7

Retrieves all NetStream objects belonging to this NetMonitor object's security context.

Avoid caching the list of NetStream objects. Maintaining a reference to these NetStream objects can introduce memory leaks into an application by preventing the garbage collector from reclaiming an object's resources when it is no longer being used.

Note: if the NetStream monitoring is not supported on the current platform, the list returned by this function is always empty.

Returns

| `Vector.<NetStream>` — Vector of NetStream objects

Event Detail

### netStreamCreate

Event

Event Object Type: `flash.events.NetMonitorEvent`
property NetMonitorEvent.type = `flash.events.NetMonitorEvent.NET_STREAM_CREATE`

Language Version: | ActionScript 3.0

Runtime Versions: | Flash Player 10.3, AIR 2.7

Dispatched when a new NetStream object is created within the security context of this NetMonitor instance.

Note: if the NetStream monitoring is not supported on the current platform, `netStreamCreate` events are not dispatched.

The `NetMonitorEvent.NET_STREAM_CREATE` constant defines the value of the `type` property of an `netStreamCreate` event object.

The `netStreamCreate` event has the following properties:

Property | Value
--- | ---
`netStream` | NetStream object that has been created.
`bubbles` | `false`
`cancelable` | `false`; there is no default behavior to cancel.
`currentTarget` | The object that is actively processing the Event object with an event listener.
`target` | The object beginning or ending a session.

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Mon Apr 10 2017, 12:28 PM -07:00