alpha不适用于文本(flash,as3)

时间:2011-10-12 02:56:18

标签: flash actionscript-3 text scrollbar alpha

我想用“alpha”效果,但是当我使用特定的类在我的文本上设置滚动条时,文本不响应我的alpha。 您将看到文本不响应补间开头的alpha 0。

我正在使用我在互联网上找到的一个好的滚动条类,但我无法解释为什么会发生这种情况。

这是我在fla中导入另一个类的代码,它导入滚动条类;-):

import com.greensock.*;
import com.greensock.easing.*;

var loader:Loader = new Loader;
var url:URLRequest = new URLRequest("Rhizo.swf");
loader.load(url);

loader.contentLoaderInfo.addEventListener(Event.COMPLETE, ec);

function ec (e:Event){
    var a = e.target.content;

    a.alpha = 0;
    addChild(e.target.content);
    TweenLite.to(a, 3, { x:30, alpha:1});

}

文档类,与包含上面代码的fla链接,我调用滚动条类:

public class ScrollBarAS3 extends MovieClip {
        public var my_scrollbar:MakeScrollBar;

        public function ScrollBarAS3() {
            my_scrollbar = new MakeScrollBar( scroll_mc, scroll_text );
            scroll_txt.selectable = true; 
        }

        public function scroll_text( n:Number ) {
            scroll_txt.scrollV = Math.round( ( scroll_txt.maxScrollV - 1 ) * n ) + 1;
        }

这是滚动条类:

package {
    import flash.display.Stage;
    import flash.display.MovieClip;
    import flash.events.*;
    import flash.geom.Rectangle;

    public class MakeScrollBar extends MovieClip {
        private var host_mc:MovieClip;
        private var call_back:Function;

        private var drag_mc:MovieClip;
        private var track_mc:MovieClip;

        private var scroll_rect:Rectangle;
        private var upper_limit:Number;
        private var range:Number;

        public function MakeScrollBar( _mc:MovieClip, cb:Function ) {
            host_mc = _mc;
            call_back = cb;

            drag_mc = host_mc.drag_mc; // 
            drag_mc.buttonMode = true;
            drag_mc.mouseChildren = false
            drag_mc.addEventListener( MouseEvent.MOUSE_DOWN, press_drag );
            track_mc = host_mc.track_mc;
            track_mc.buttonMode = true;
            track_mc.mouseChildren = false
            track_mc.addEventListener( MouseEvent.CLICK, click_track );

            set_limits();
        }

        private function press_drag( event:MouseEvent ):void {
            /***************************************************/
            drag_mc.stage.addEventListener( MouseEvent.MOUSE_UP, release_drag, false, 0, true );
            /***************************************************/ 
            drag_mc.startDrag( false, scroll_rect );
            drag_mc.addEventListener( Event.ENTER_FRAME, drag );
        }

        private function release_drag( event:MouseEvent ):void {
            drag_mc.removeEventListener( Event.ENTER_FRAME, drag );
            drag_mc.stage.removeEventListener( MouseEvent.MOUSE_UP, release_drag );
            drag_mc.stopDrag();
        }

        private function click_track( event:MouseEvent ):void {
        }

        private function set_limits():void {
            scroll_rect = new Rectangle( track_mc.x, track_mc.y, 0, track_mc.height - drag_mc.height );
            upper_limit = track_mc.y;
            range = track_mc.height - drag_mc.height;
        }

        private function drag( event:Event ):void {
            var p = ( drag_mc.y - track_mc.y ) / range;
            call_back( p );
        }
    }
}

你知道我能做些什么来让alpha工作吗?

非常感谢

干杯

1 个答案:

答案 0 :(得分:2)

从AS3的角度来看,除非将其embedFonts属性设置为true,否则您将无法将透明度应用于TextField。我建议问题是加载的SWF,但你没有为它提供任何代码...

// -----------------------编辑--------------------- //

如果您只是这样做会怎么样?文字出现了吗?

function ec (e:Event){
    var a = e.target.content;

    a.alpha = 0;
    addChild(e.target.content);

}

您是否在本地测试.swf?
您是否尝试过简单地加载电影,没有ScrollBar并设法使alpha工作? 目前,我没有在ScrollBar类中看到任何可能干扰文本透明度的内容......