10.31用户界面练习题

importUIKit

classViewController:UIViewController{

/*用户界面：

1、键盘能够回收，提示点击按钮的时候键盘能回收，核心代码：[输入框：resignFirstResponder]

2、密码和确认密码设置密文输入

3、手机号使用数字键盘

*/

overridefuncviewDidLoad() {

super.viewDidLoad()

letlabel =UILabel(frame:CGRectMake(30,60,60,20))

view.addSubview(label)

label.text="用户名"

label.textColor=UIColor.blackColor()

label.textAlignment= .Left

label.font=UIFont.systemFontOfSize(15)

lettextField =UITextField(frame:CGRectMake(100,60,200,20))

view.addSubview(textField)

textField.placeholder="用户名"

textField.borderStyle= .RoundedRect

textField.returnKeyType= .Go

textField.delegate=self

letlabel1 =UILabel(frame:CGRectMake(30,100,60,20))

view.addSubview(label1)

label1.text="密码"

label1.textColor=UIColor.blackColor()

label1.textAlignment= .Left

label1.font=UIFont.systemFontOfSize(15)

lettextField1 =UITextField(frame:CGRectMake(100,100,200,20))

view.addSubview(textField1)

textField1.placeholder="密码"

textField1.secureTextEntry=true

textField1.borderStyle= .RoundedRect

textField1.returnKeyType= .Go

textField1.delegate=self

letlabel2 =UILabel(frame:CGRectMake(30,140,60,20))

view.addSubview(label2)

label2.text="确认密码"

label2.textColor=UIColor.blackColor()

label2.textAlignment= .Left

label2.font=UIFont.systemFontOfSize(15)

lettextField2 =UITextField(frame:CGRectMake(100,140,200,20))

view.addSubview(textField2)

textField2.placeholder="确认密码"

textField2.secureTextEntry=true

textField2.borderStyle= .RoundedRect

textField2.returnKeyType= .Go

textField2.delegate=self

letlabel3 =UILabel(frame:CGRectMake(30,180,60,20))

view.addSubview(label3)

label3.text="手机号"

label3.textColor=UIColor.blackColor()

label3.textAlignment= .Left

label3.font=UIFont.systemFontOfSize(15)

lettextField3 =UITextField(frame:CGRectMake(100,180,200,20))

view.addSubview(textField3)

textField3.placeholder="手机号"

textField3.keyboardType= .NumberPad

textField3.borderStyle= .RoundedRect

textField3.returnKeyType= .Go

textField3.delegate=self

letlabel4 =UILabel(frame:CGRectMake(30,220,60,20))

view.addSubview(label4)

label4.text="邮箱"

label4.textColor=UIColor.blackColor()

label4.textAlignment= .Left

label4.font=UIFont.systemFontOfSize(15)

lettextField4 =UITextField(frame:CGRectMake(100,220,200,20))

view.addSubview(textField4)

textField4.placeholder="邮箱"

textField4.keyboardType= .EmailAddress

textField4.borderStyle= .RoundedRect

textField4.returnKeyType= .Go

textField4.delegate=self

}

overridefuncdidReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

}

extensionViewController:UITextFieldDelegate{

//实现点击return键响应的方法

functextFieldShouldReturn(textField:UITextField) ->Bool{

//使键盘回收，所以取消输入框的第一响应者

textField.resignFirstResponder()

returntrue

}

}