我有一个包含UITextView的UIView。UIView在UIViewController中启动。但是当我触摸UITextView框时，没有任何反应。键盘既不出现也不委托(delegate)方法响应交互。代码:noteText=[[UITextViewalloc]initWithFrame:CGRectMake(0,0,700,240)];noteText.layer.borderColor=[UIColorcolorWithRed:0green:0blue:0alpha:0.2].CGColor;noteText.layer.borderWidth=2;[noteTextsetE