[AS3.0] Error #1069: Property onBWDone not found on flash.net.NetConnection and there is no default value.解决办法

在运用FMS录制视频时，假如出现这个错误，最直接的解决办法如下：

_netConnection.client = { onBWDone: function():void{ trace("onBWDone"); } };

不过也存在第二种解决办法：

_netConnection.client = this;

public function onBWDone(...rest):void
{
    var p_bw:Number;
    if (rest.length > 0){
        p_bw = rest[0];
    }
    trace("bandwidth = " + p_bw + " Kbps.");
} 

还有第三种解决办法：

_netConnection.client = new NetConnectionClient();

package
{
    public class NetConnectionClient
    {
        public function NetConnectionClient()
        {
        }

        public function onBWCheck(...rest):Number
        {
            return 0;
        } 

        public function onBWDone(...rest):void
        {
            var p_bw:Number;
            if (rest.length > 0){
                p_bw = rest[0];
            }
            trace("bandwidth = " + p_bw + " Kbps.");
        }
    }
}