一、正常写的代码
textFiled.font = UIFont.systemFont(ofSize: 14)
textFiled.textAlignment = .left
textFiled.layer.cornerRadius = 6
textFiled.returnKeyType = UIReturnKeyType.done
textFiled.isScrollEnabled = true
textFiled.textColor = UIColor(red: 174, green: 183, blue: 186, alpha: 1)
textFiled.delegate = self
textFiled.backgroundColor = UIColor.white
textFiled.snp.makeConstraints { (make) in
make.left.equalTo(icon.snp.left)
make.right.equalTo(screen_Witch).offset(-12)
make.height.equalTo(96)
make.top.equalTo(title.snp.bottom).offset(12)
}
二、添加默认文字
// textField里面的默认文字
textLable.frame = CGRect(x: 10, y: 10, width: 200, height: 20)
textLable.isEnabled = false
textLable.text = "输入任务描述"
textLable.font = UIFont.systemFont(ofSize: 14)
textLable.textColor = UIColor(red: 174, green: 183, blue: 186, alpha: 1)
textFiled.addSubview(textLable)
extension LJDescriptionCell:UITextViewDelegate{
/// 设置文本框当输入的时候，不显示默认文字，当文本内容长度为0的时候，显示默认长度
func textViewDidChange(_ textView: UITextView) {
let strLenght = NSString(string: textFiled.text)
if strLenght.length == 0{
textLable.isHidden = false
}
else{
textLable.isHidden = true
}
}
}
