Flash CS3 Documentation

ActionScript 2.0 Language Reference > ActionScript classes > Camera > activityLevel (Camera.activityLevel property)

activityLevel (Camera.activityLevel property)

public activityLevel : Number [read-only]

A numeric value that specifies the amount of motion the camera is detecting. Values range from 0 (no motion is being detected) to 100 (a large amount of motion is being detected). The value of this property can help you determine if you need to pass a setting to Camera.setMotionLevel().

If the camera is available but is not yet being used because Video.attachVideo() has not been called, this property is set to -1.

If you are streaming only uncompressed local video, this property is set only if you have assigned a function to the Camera.onActivity event handler. Otherwise, it is undefined.

Availability: ActionScript 1.0; Flash Player 6

Example

This example detects the amount of motion the camera detects using the activityLevel property and a ProgressBar instance. Create a new video instance by selecting New Video from the Library options menu. Add an instance to the Stage and give it the instance name my_video. Add a ProgressBar component instance to the Stage and give it the instance name activity_pb. Then add the following ActionScript to Frame 1 of the Timeline:

// video instance on the Stage.
var my_video:Video;
var activity_pb:mx.controls.ProgressBar;
var my_cam:Camera = Camera.get();
my_video.attachVideo(my_cam);
activity_pb.mode = "manual";
activity_pb.label = "Activity %3%%";

this.onEnterFrame = function() {
    activity_pb.setProgress(my_cam.activityLevel, 100);
};
my_cam.onActivity = function(isActive:Boolean) {
    var themeColor:String = (isActive) ? "haloGreen" : "haloOrange";
    activity_pb.setStyle("themeColor", themeColor);
};

activityLevel (Camera.activityLevel property)

Example

See also