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https://www.jianshu.com/p/deb3e9e1f10c 2017.03.14 10:31* 字数 144 阅读 1320评论 0喜欢 2 1、UITextView的创建及基本属性设置##### //创建UITextView对象 textView = UITextView(frame:CGRectMake(10.0, 120.0, 300.0, 200.0))
//背景颜色设置 textView.backgroundColor = UIColor.grayColor()
//添加到视图上 self.view.addSubview(textView)
//设置textview里面的字体颜色 textView.textColor = UIColor.greenColor()
//设置文本字体 textView.font = UIFont.systemFontOfSize(18);//使用系统默认字体,指定14号字号 textView.font = UIFont(name: "Helvetica-Bold", size: 18)//指定字体,指定字号
//设置它的背景颜色 textView.backgroundColor = UIColor.grayColor()
//设置显示内容 textView.text ="哈喽,大家好,我是见哥"
//文本对齐方式 textView.textAlignment = .left 其中UITextField的文本的对齐方式有: public enum NSTextAlignment : Int { case left // Visually left aligned case center // Visually centered case right // Visually right aligned /* !TARGET_OS_IPHONE */ // Visually right aligned // Visually centered case justified // Fully-justified. The last line in a paragraph is natural-aligned. case natural // Indicates the default alignment for script }
//文本视图设置圆角 textView.layer.cornerRadius = 20 textView.layer.masksToBounds = true
//是否允许点击链接和附件 textView.isSelectable = false textView.isSelectable = true
//是否允许进行编辑 textview.isEditable = false textview.isEditable = true
//返回键的类型 textView.returnKeyType = UIReturnKeyType.Done 键盘的返回键类型: public enum UIReturnKeyType : Int { case `default` case go case google case join case next case route case search case send case yahoo case done case emergencyCall @available(iOS 9.0, *) case `continue` }
//键盘类型 textView.keyboardType = UIKeyboardType.Default 键盘的类型也是比较多的 public enum UIKeyboardType : Int { case `default` // Default type for the current input method. case asciiCapable // Displays a keyboard which can enter ASCII characters case numbersAndPunctuation // Numbers and assorted punctuation. case URL // A type optimized for URL entry (shows . / .com prominently). case numberPad // A number pad with locale-appropriate digits (0-9, ۰-۹, ०-९, etc.). Suitable for PIN entry. case phonePad // A phone pad (1-9, *, 0, #, with letters under the numbers). case namePhonePad // A type optimized for entering a person's name or phone number. case emailAddress // A type optimized for multiple email address entry (shows space @ . prominently). @available(iOS 4.1, *) case decimalPad // A number pad with a decimal point. @available(iOS 5.0, *) case twitter // A type optimized for twitter text entry (easy access to @ #) @available(iOS 7.0, *) case webSearch // A default keyboard type with URL-oriented addition (shows space . prominently). @available(iOS 10.0, *) case asciiCapableNumberPad // A number pad (0-9) that will always be ASCII digits. public static var alphabet: UIKeyboardType { get } // Deprecated }
//是否可以滚动 textView.scrollEnabled = true
//给文字中的网址和电话号码自动加上链接
textView.dataDetectorTypes = [] //都不加 textView.dataDetectorTypes = .phoneNumber //只有电话号码加 textView.dataDetectorTypes = .link //只有网址加 textView.dataDetectorTypes = .all //电话和网址都加
//自适应高度 textView.autoresizingMask = UIViewAutoresizing.FlexibleHeight
//设置富文本 var attributeString:NSMutableAttributedString=NSMutableAttributedString(string: "经常听到,押金不退,晚一天交房租,被讹了。网上报价不真实?经常被忽悠")
//设置字体颜色 attributeString.addAttribute(NSForegroundColorAttributeName, value: UIColor.greenColor(), range: NSMakeRange(0, attributeString.length))
//文本所有字符字体HelveticaNeue-Bold,16号 attributeString.addAttribute(NSFontAttributeName, value: UIFont(name: "HelveticaNeue-Bold", size: 16)!, range: NSMakeRange(0, attributeString.length))
//文本0开始5个字符字体HelveticaNeue-Bold,16号 attributeString.addAttribute(NSFontAttributeName, value: UIFont(name: "HelveticaNeue-Bold", size: 26)!, range: NSMakeRange(0, 5))
//设置字体颜色 attributeString.addAttribute(NSForegroundColorAttributeName, value: UIColor.whiteColor(), range: NSMakeRange(0, 3))
//设置文字背景颜色 attributeString.addAttribute(NSBackgroundColorAttributeName, value: UIColor.orangeColor(), range: NSMakeRange(3, 3))
//赋值富文本 textView.attributedText = attributeString
//选中一段文本 textView.becomeFirstResponder() textView.selectedRange = NSMakeRange(30, 10)
//获取内容整体高度 var height:CGFloat = textView.contentSize.height
2、自定义菜单##### //定义2个菜单选择 我们在看一些文档的时候,往往会出现这种情况,我们把手指长按这段文字或者图片...会弹出一个按钮选择菜单,比如:复制,粘贴等我们可以进行一些列的操作,我们可以在这个菜单上加上一些别的东西,例如:分享,邮件,微信等。
var menuItem1:UIMenuItem = UIMenuItem(title: "分享到微信", action: "shareWXMenu:")
var menuItem2:UIMenuItem = UIMenuItem(title: "分享到微博", action: "shareWBMenu:")
var menuController:UIMenuController = UIMenuController.sharedMenuController()
menuController.menuItems = [menuItem1,menuItem2]
//或者 //let mail = UIMenuItem(title: "邮件", action: #selector(ViewController.onMail))
//let weixin = UIMenuItem(title: "微信", action: #selector(ViewController.onWeiXin))
//let menu = UIMenuController()
//menu.menuItems = [mail,weixin] 实现效果如下图:
3、代理设置和一些相关方法的实现##### textView.delegate = self //指定代理对象 我们可以添加通知来监测UITextField所对应的不同的编辑状态 主要有以下状态: UIKIT_EXTERN NSNotificationName const UITextViewTextDidBeginEditingNotification; UIKIT_EXTERN NSNotificationName const UITextViewTextDidChangeNotification; UIKIT_EXTERN NSNotificationName const UITextViewTextDidEndEditingNotification; 其对应的通知添加为: NSNotificationCenter.defaultCenter().addObserver(self, selector: "textDidBeginEditing", name: UITextViewTextDidBeginEditingNotification, object: nil) NSNotificationCenter.defaultCenter().addObserver(self, selector: "textDidEndEditing", name: UITextViewTextDidEndEditingNotification, object: nil) NSNotificationCenter.defaultCenter().addObserver(self, selector: "textDidChange", name: UITextViewTextDidChangeNotification, object: nil) 我们多制定对象实现了UITextViewDelegate并作为UITextView的代理就可以实现其所对应代理方法: func textViewDidBeginEditing(_ textView: UITextView) { //开始编辑时候出发 }
func textViewDidEndEditing(_ textView: UITextView) { //结束编辑时候出发 }
func textViewShouldBeginEditing(_ textView: UITextView) -> Bool { return true //如果返回false,文本视图不能编辑 }
func textViewShouldEndEditing(_ textView: UITextView) -> Bool { return true //如果返回false,表示编辑结束之后,文本视图不可再编辑 }
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool { //文本视图内容改变时,触发本方法,如果是回车符号,则textView释放第一响应值,返回false if (text == "\n") { textView.resignFirstResponder() return false; } return true }
func textViewDidChange(_ textView: UITextView) { //文本视图改变后触发本代理方法 }
func textViewDidChangeSelection(_ textView: UITextView) { //文本视图 改变选择内容,触发本代理方法 }
func textView(textView: UITextView, shouldInteractWithURL URL: NSURL, inRange characterRange: NSRange) -> Bool { //链接在文本中显示。当链接被点击的时候,会触发本代理方法 return true } func textView(_ textView: UITextView, shouldInteractWith textAttachment: NSTextAttachment, in characterRange: NSRange, interaction: UITextItemInteraction) -> Bool { //文本视图允许提供文本附件,文本附件点击时,会触发本代理方法 return true } 4、点击选中文字弹出按钮的显示###### override func canPerformAction(action:Selector,withSender sender: AnyObject?) -> Bool {
//判断有没有选中文字, //如果选择,输出选择的文本 var isSelect:Bool = textView.selectedRange.length > 0
if(action == "shareWXMenu:" && isSelect)//选择文本,并点击分享到微信菜单 { return true; } else if(action == "shareWBMenu:" && isSelect)//选择文本,并点击分享到微博菜单 {
return true; }
return false; //不显示系统的菜单,改成true对比一下效果 }
//分享到微信 func shareWXMenu(sender: AnyObject?) { if textView.selectedRange.length > 0 { println((textView.text as NSString).substringWithRange(textView.selectedRange)) }
println("这里实现 分享到微信 功能") } //分享到微博 func shareWBMenu(sender: AnyObject?) { println("这里实现 分享到微博 功能") }
1,多行文本控件的创建
textView.frame = CGRect(x:50,y:180,width:self.view.bounds.size.width - 100,height:50) textview.layer.borderWidth=1 //边框粗细 textview.layer.borderColor=UIColor.red.cgColor //边框颜色 self.view.addSubview(textview) 2,是否可编辑 textview.editable=false 3,内容是否可选 textview.selectable=false 4,属性font设置字体,textColor设置字体颜色,textAlignment设置对齐方式 textView.textColor = UIColor.red//设置字体颜色
textView.textAlignment = .center //设置对齐方式 5,给文字中的电话号码和网址自动加链接 textview.dataDetectorTypes = .none //都不加链接 textview.dataDetectorTypes = .phoneNumber //只有电话加链接 textview.dataDetectorTypes = .link //只有网址加链接 textview.dataDetectorTypes = .all //全部都加 textview.dataDetectorTypes = .calendarEvent //日历 textview.dataDetectorTypes = .shipmentTrackingNumber //货单号 textview.dataDetectorTypes = .flightNumber //班机号 textview.dataDetectorTypes = .lookupSuggestion //查看建议 6,自定义选择内容后的菜单 1、定义方法 let mail = UIMenuItem(title: "邮件", action: #selector(ViewController.onMail)) let weixin = UIMenuItem(title: "微信", action: #selector(ViewController.onWeiXin)) let menu = UIMenuController() menu.menuItems = [mail,weixin] 注:这个方法仿照着写出来以后,会报警告,但是不影响使用 2、方法的实现 func onMail() {
print("mail")
}
func onWeiXin() {
print("weixin")
}
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