Actionscript 3菜单与活动状态

我有一个简单的菜单，当悬停的每个项目，播放一个影片剪辑，然后在mouse_out它播放影片剪辑反向。我想要做的是在点击时显示第三个状态（活动）。我想我需要做的东西沿线︰Actionscript 3菜单与活动状态

当点击，gotoAndStop（5）//五是我的活动帧的位置也删除触发功能的事件侦听器播放电影相反。然后，当另一个菜单项被点击时，重新添加事件监听器到上一个菜单项，所以它不会卡住'活跃'

我不能完全弄清楚如何做到这一点。我的代码如下：

// IMPORTS 

import fl.transitions.*; 
import fl.transitions.Tween; 
import fl.transitions.easing.*; 
import flash.external.ExternalInterface; 

// EVENT LISTENERS 

//arrow 
mcArrow.addEventListener(MouseEvent.MOUSE_OVER,mover); 
mcArrow.addEventListener(MouseEvent.MOUSE_OUT,mout); 

//dots 
mcDots.addEventListener(MouseEvent.MOUSE_OVER,mover); 
mcDots.addEventListener(MouseEvent.MOUSE_OUT,mout); 

//music 
mcMusic.addEventListener(MouseEvent.MOUSE_OVER,mover); 
mcMusic.addEventListener(MouseEvent.MOUSE_OUT,mout); 

//home 
mcHome.addEventListener(MouseEvent.MOUSE_OVER,mover); 
mcHome.addEventListener(MouseEvent.MOUSE_OUT,mout); 

//padlock 
mcPadlock.addEventListener(MouseEvent.MOUSE_OVER,mover); 
mcPadlock.addEventListener(MouseEvent.MOUSE_OUT,mout); 

// FUNCTIONS 

function mover(e:MouseEvent):void { 
    stopPlayReverse(e.currentTarget as MovieClip); 
    e.currentTarget.play(); 
//var fadeIn:Tween = new Tween(mcToolTip, "alpha", Strong.easeOut, 0, 1, 0.5, true); 
} 

function mout(e:MouseEvent):void { 
    var mc:MovieClip = e.currentTarget as MovieClip; 
    if (mc !== null) { 
    mc.addEventListener(Event.ENTER_FRAME, playReverse, false, 0, true); 
    } 
    //var fadeOut:Tween = new Tween(mcToolTip, "alpha", Strong.easeOut, 1, 0, 0.5, true); 
} 

function playReverse(e:Event):void { 
    var mc:MovieClip = e.currentTarget as MovieClip; 

    if (mc.currentFrame == 1) { 
     stopPlayReverse(mc); 
    } else { 
     mc.prevFrame(); 
    } 
} 

function stopPlayReverse(mc:MovieClip):void { 
    if ((mc!==null) && mc.hasEventListener(Event.ENTER_FRAME)) { 
    mc.removeEventListener(Event.ENTER_FRAME, playReverse); 
    } 
}

来源

2010-01-18 Probocop

首先，我将创建，设置了事件侦听器和方法的菜单项的菜单项类。在MenuItem类中，创建一个类型为Boolean的'isActive'属性，用于跟踪菜单项的当前状态。下面是该类的快速模拟式：

package { 
    import flash.display.MovieClip; 
    import flash.events.*; 

    public class MenuItem extends MovieClip { 
     public var isOver:Boolean = false; 
     public var isActive:Boolean = false; 
     public static var CLICK:String = 'menu_item_click'; 

     public function MenuItem() { 
      addEventListener(MouseEvent.MOUSE_OVER, mover); 
      addEventListener(MouseEvent.MOUSE_OUT, mout); 
      addEventListener(MouseEvent.CLICK, mclick); 
      addEventListener(Event.ENTER_FRAME, onFrame); 
     } 

     private function mover(e:MouseEvent):void { 
      isOver = true; 
     } 

     private function mout(e:MouseEvent):void { 
      isOver = false; 
     } 

     private function mclick(e:MouseEvent):void { 
      isActive = true; 
      goToAndStop(5); // go to active frame 
     } 

     private function onFrame(e:Event):void { 
      if (isActive) return; // don't do anything if this menu item is active 

      if (isOver) { // if the mouse is over the menu item 
       if (currentFrame >= 4) { // make sure we don't go to frame 5, the active frame 
        nextFrame(); 
       } 
      } else { 
       prevFrame(); // or play in reverse. If at frame 1, prevFrame() won't do anything 
      } 
     } 
    } 
}

的ENTER_FRAME监听器将连续运行，并基于该isActive和依索维尔状态的行动。这消除了删除侦听器并为playReverse和stopPlayReverse创建其他方法的需要。

其次，我将所有菜单项放在名为MenuContainer的容器类中。最简单的方法是在Flash中创建一个空的影片剪辑，然后将所有菜单项拖入其中。使用MenuContainer的Class值导出Actionscript容器。这里是MenuContainer中类的实物模型：

package { 
    import flash.display.MovieClip; 
    import flash.events.*; 

    public class MenuContainer extends MovieClip { 

     public function MenuContainer() { 
      addEventListener(MenuItem.CLICK, onMenuItemClick); 
     } 

     private function onMenuItemClick(e:MouseEvent):void { 
      var clickedMenuItem:MenuItem = MenuItem(e.target); // the clicked menu item 
      for (var i:int = 0; i < this.numChildren; i++) { // loop through the menu items 
       var menuItem:MenuItem = MenuItem(this.getChildAt(i)); // get the loop menu item 
       if (menuItem != clickedMenuItem) { // if the loop menu item is not the clicked menu item 
        menuItem.isActive = false; // then isActive is false 
       } 
      } 
     } 

    } 
}

来源

2010-01-18 17:15:06 wpjmurray

另一种选择，下面的代码，将有一个辅助变量，表示该菜单项是当前活跃，所以一旦我们点击我们可以将其停用

private var activeMenuItem:MenuItem; //your auxiliary variable 
private function onClick(e:MouseEvent):void { 
    if(activeMenuItem) { 
    //if there is an active menu item re-enable it 
    activeMenuItem.gotoAndStop(1); 
    activeMenuItem.mouseEnabled=true; 
    } 
    //set the active menu item to the clicked one 
    activeMenuItem=e.currentTarget; 
    //and set its state to active and mouse disabled 
    activeMenuItem.gotoAndStop(5); 
    activeMenuItem.mouseEnabled=false; 
}

：其他项目......这意味着每个菜单项将在点击执行此功能

来源

2010-01-18 17:34:45 Cay

Actionscript 3菜单与活动状态

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