AS3移除一個精靈對象的多個子對象

Question

我在應用程序中有一個按鈕，用戶可以點擊添加多個輸入字段。該功能如下。

private var fieldHolder:Sprite = new Sprite(); 

private function addInviteFriend(event:starling.events.Event):void 
{ 
    this.newFriendInvite = new TextInput(); 
    this.newFriendInvite.backgroundSkin = new Quad(Constants.STAGE_WIDTH - 80, 30, 0xd0d0d1); 
    this.newFriendInvite.width = Constants.STAGE_WIDTH - 110; 
    this.newFriendInvite.height = 30; 
    this.newFriendInvite.text = ""; 
    this.fieldHolder.addChild(this.newFriendInvite); 
    this.newFriendInvite.x = 0; 
    this.newFriendInvite.y = this.fieldHolder.height; 

    this.removeInvitedFriend = new Button(); 
    this.removeInvitedFriend.defaultSkin = new Image(Assets.getAtlasTexture("btn-delete")); 
    this.fieldHolder.addChild(this.removeInvitedFriend); 
    this.removeInvitedFriend.x = int((this.newFriendInvite.x + this.newFriendInvite.width) - this.newFriendInvite.defaultSkin.width); 
    this.removeInvitedFriend.y = int(this.newFriendInvite.y); 
    this.removeInvitedFriend.addEventListener(starling.events.Event.TRIGGERED, removeInviteFriendClick); 

    this.addInviteFriendButton.y = this.fieldHolder.y + this.fieldHolder.height + 30 + 1; 
} 

private function removeInviteFriendClick(event:starling.events.Event):void 
{ 
    var child:Sprite = event.currentTarget as Sprite;  
    this.fieldHolder.removeChild(child); 
} 

一切都很正常，我可以添加多個輸入字段然而問題是，當我點擊刪除按鈕只有按鈕本身被刪除，而不是TextInput字段。我知道爲什麼只有按鈕被刪除，但我不知道如何在removeChild過程中包含textinput。

我試着創建另一個精靈來保存fieldHolder的所有實例，但沒有奏效。我也試過removeChildren，但那也沒有效果。

感謝

Answer 1

嘗試添加兩個元素到一個容器中，然後調用該removeChildren？

private var fieldHolder:Sprite = new Sprite(); 

private function addInviteFriend(event:starling.events.Event):void 
{ 
    var container:Sprite = new Sprite(); 

    this.newFriendInvite = new TextInput(); 
    this.newFriendInvite.backgroundSkin = new Quad(Constants.STAGE_WIDTH - 80, 30, 0xd0d0d1); 
    this.newFriendInvite.width = Constants.STAGE_WIDTH - 110; 
    this.newFriendInvite.height = 30; 
    this.newFriendInvite.text = ""; 
    this.newFriendInvite.x = 0; 
    this.newFriendInvite.y = this.fieldHolder.height; 
    container.addChild(this.newFriendInvite); 

    this.removeInvitedFriend = new Button(); 
    this.removeInvitedFriend.defaultSkin = new Image(Assets.getAtlasTexture("btn-delete")); 
    this.removeInvitedFriend.x = int((this.newFriendInvite.x + this.newFriendInvite.width) - this.newFriendInvite.defaultSkin.width); 
    this.removeInvitedFriend.y = int(this.newFriendInvite.y); 
    this.removeInvitedFriend.addEventListener(starling.events.Event.TRIGGERED, removeInviteFriendClick); 
    container.addChild(this.removeInvitedFriend); 

    this.addInviteFriendButton.y = this.fieldHolder.y + this.fieldHolder.height + 30 + 1; 

    this.fieldHolder.addChild(container); 
} 

private function removeInviteFriendClick(event:starling.events.Event):void 
{ 
    var child:Sprite = event.currentTarget as Sprite;  
    child.parent.removeChildren(); 
}