这是我的代码:
var messageView : UITextView = {
var textView = UITextView()
textView.text = " Add your message here"
textView.textColor = UIColor.lightGrayColor()
textView.translatesAutoresizingMaskIntoConstraints = false
textView.backgroundColor = UIColor.lightGrayColor()
textView.layer.cornerRadius = 3
textView.clipsToBounds = true
textView.keyboardAppearance = .Dark
textView.layer.borderWidth = 1.0
textView.layer.borderColor = UIColor.lightGrayColor()
textView.autocorrectionType = .no
// MARK: Setup accesorryView
let label = UILabel()
label.text = "You have a 100 character limit"
label.translatesAutoresizingMaskIntoConstraints = false
let accessoryView = UIView(frame: CGRectMake(0, 0, UIScreen.mainScreen().bounds.width, 44))
accessoryView.backgroundColor = UIColor.redColor()
accessoryView.addSubview(label)
accessoryView.leadingAnchor.constraintEqualToAnchor(label.leadingAnchor, constant: 18)
accessoryView.centerYAnchor.constraintEqualToAnchor(label.centerYAnchor)
textView.inputAccessoryView = accessoryView
return textView
}()
我正在尝试将 inputAccessoryView 添加到 TextView 的键盘。
我的 inputAccessoryView 必须有一个标签,上面写着“您的字符数限制为 100 个”...
但我目前的结果是这样的:
蓝色的文本...正是我想要在 inputAccessoryView 中的标签,但它位于屏幕顶部...
你需要设置translatesAutoresizingMaskIntoConstraints
在标签上false
and isActive
to true
关于约束条件。基本上你的约束代码应该如下所示:
accessoryView.leadingAnchor.constraintEqualToAnchor(label.leadingAnchor, constant: 18).isActive = true
accessoryView.centerYAnchor.constraintEqualToAnchor(label.centerYAnchor).isActive = true
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