c# - “名称''在当前上下文中不存在”

Question

使用 Unity 3d 和 C# 我正在尝试创建一个按钮，在 .onTouchUpInside 上将触发动画以隐藏 2 个按钮，截取屏幕截图并再次显示按钮。动画和截屏方法都独立工作。他们一起工作能够隐藏一个按钮。

但是当我尝试将辅助按钮放在它提出的方法中时

当前上下文中不存在名称“”

var touchable = UIButton.create( "CameraUp.png", "CameraUp.png", 0, 0 );

//touchable.onTouchUpInside += ( sender ) => StartCoroutine( TakeScreenshot(this) );
touchable.onTouchUpInside += ( sender ) => StartCoroutine( hidebuttonani(touchable, info) );
touchable.onTouchUpInside += ( sender ) => Debug.Log( "Camera button pressed " );


var info = UIButton.create ("FacebookIcon.png", "FacebookIcon.png", 0, 0);
var alertTitle = new string[] { "testing" };
info.onTouchUpInside += ( sender ) => EtceteraBinding.showAlertWithTitleMessageAndButtons( "hi ", "yest ", alertTitle );

// UIObjects 可以像面板一样组合在一起使用 var panel = new UIObject(); info.parentUIObject = 面板；touchable.parentUIObject = 面板；

StartCoroutine( hidebuttonani( panel ) );

}

private IEnumerator hidebuttonani ( UIObject sprite )
//private IEnumerator hidebuttonani (UIButton touchable, UIButton Info)
{

if ( true )
{
var ani = sprite.alphaTo( 0.01f, 0f, Easing.Linear.easeIn );

StartCoroutine( TakeScreenshot(this) );

yield return new WaitForSeconds (1);

ani.autoreverse = true;
yield return ani.chain();

ani = sprite.alphaTo( 01f, 0f, Easing.Linear.easeOut );
yield return ani.chain();


ani = sprite.alphaTo( 0.7f, 1.0f, Easing.Linear.easeOut );
yield return ani.chain();
}
}