ActionScript 2.0 Components Language Reference 
ActionScript 2.0 Components Language Reference |
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| FLVPlayback Component > FLVPlayback class > FLVPlayback.seek | |||
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Flash Player 8.
Flash Professional 8.
varlistenerObject:Object = new Object();listenerObject.seek = function(eventObject:Object):Void {// insert event-handling code here}; my_FLVplybk.addEventListener("seek",listenerObject);
Event; dispatched when the location of playhead is changed by a call to seek(), by setting the playheadTime property or by using the seekBar control. The playheadTime property is the destination time. The event object has the properties state, playheadTime, and vp, which is the index number of the video player to which the event applies.
The FLVPlayback instance dispatches the rewind event when the seek is backward and the fastForward event when the seek is forward. It also dispatches the playheadUpdate event.
For several reasons, the playheadTime property might not have the expected value immediately after calling one of the seek methods or setting playheadTime to cause seeking. First, for a progressive download, you can seek only to a keyframe, so a seek takes you to the time of the first keyframe after the specified time. (When streaming, a seek always goes to the precise specified time even if the source FLV file doesn't have a keyframe there.) Second, seeking is asynchronous, so if you call a seek method or set the playheadTime property, playheadTime does not update immediately. To obtain the time after the seek is complete, listen for the seek event, which does not start until the playheadTime property has updated.
The following example seeks 2 seconds into the FLV file when the ready event occurs. The seek() function triggers a seek event, at which point the listener displays the playheadTime and the name of the FLVPlayback instance.
Drag an FLVPlayback component to the Stage, and give it an instance name of my_FLVPlybk. Then add the following code to the Actions panel on Frame 1 of the Timeline:
/**
Requires:
- FLVPlayback component on the Stage with an instance name of my_FLVPlybk
*/
import mx.video.*;
var listenerObject:Object = new Object();
listenerObject.seek = function(eventObject:Object) {
trace("A seek event occurred at " + eventObject.playheadTime);
};
my_FLVPlybk.addEventListener("seek", listenerObject);
listenerObject.ready = function(eventObject:Object) {
my_FLVPlybk.seek(2);
};
my_FLVPlybk.addEventListener("ready", listenerObject);
my_FLVPlybk.contentPath = "http://www.helpexamples.com/flash/video/water.flv";
FLVPlayback.activeVideoPlayerIndex, FLVPlayback.fastForward, FLVPlayback.playheadTime, FLVPlayback.playheadUpdate, FLVPlayback.rewind, FLVPlayback.seek(), FLVPlayback.seekPercent(), FLVPlayback.seekSeconds(), FLVPlayback.seekToNavCuePoint(), FLVPlayback.seekToNextNavCuePoint(), FLVPlayback.seekToPrevNavCuePoint()
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