6. Swift enables a simple login registration based on XMPP and OpenFire

1. Basic steps: First import the XMPP framework, configure the environment

-"Since we are using OC's XMPP framework, we need to bridge the development of Swift." The specific method is to create a C-based. h header file, and then add the header file of the language that we need to compile OC to contain this. h file;

-"Then import the following library files, in the head file selection path

For example, to set the search path for header search paths, import the LIBXML2 library file relative path, and note that the USR is in front. The first time I installed it, I wrote the user for more than half an hour.

And then create the interface, just get two boxes and buttons to customize a suggested interface.

The user name and password in the application should be used repeatedly, so we need to say that the door is set to a simple interest class.

As shown in the following code:

Import UIKit

Class Wsbuserinfo:nsobject {

User name password for login

var username:string?

var userpasswd:string?

Registered User name password

var userregistername:string?

var userregisterpasswd:string?

To differentiate between login and registration

var islogin:bool?

Single case

Class Func getshareinstance (), wsbuserinfo{

struct Singleton {

static var dispatchone:dispatch_once_t = 0

static Var instance:wsbuserinfo? = Nil

}

Dispatch_once (&singleton.dispatchone) {(), Void in

Singleton.instance = Wsbuserinfo ()

}

Return singleton.instance!

}

}

Because the login process is designed to implement the XMPP streaming protocol, there are many steps. Here we can individually encapsulate a tool class. This allows us to log in and register the host controller to get a great relief:

In the login controller we only need to assign the input box user input information to the single-use household information class userinfo.

Then call the Usrlogin () method of the simple interest tool class and automatically complete all the login processes

By specifying a protocol, the login and registration status can be monitored.

The logic of registering the controller is the same as above, it is not repeated here.

Note 1: Before each connection request, the previous connection is disconnected, this can avoid an account long connection and other accounts can not connect.

Note 2: Re-sending login registration involves common connection requests and connection status requests, and we need to establish a bool attribute value in the simple interest class to make a branching decision, so that we only need to make a simple adjustment within the method, thus eliminating a lot of code steps.

Please see the following code for specific steps

Import UIKit

Class Wsbloginviewcontroller:uiviewcontroller,wsbxmpplogindelegate {

@IBOutlet weak var usernamefield:uitextfield!

@IBOutlet weak var userpasswdfield:uitextfield!

@IBAction func Loginbtnclick (sender:anyobject) {

Wsbuserinfo.getshareinstance (). IsLogin = True

Print ("User name: \ (usernamefield.text!)")

Print ("Password is: \ (userpasswdfield.text!)")

The user name password is stored in the tool class Wsbuserinfo this singleton object

Wsbuserinfo.getshareinstance (). UserName = usernamefield.text!

Wsbuserinfo.getshareinstance (). userpasswd = userpasswdfield.text!

Call the XMPP tool class to complete the login

Set up an agent for Wsbxmpptool before logging in

Wsbxmpptool.getsharedinstance (). Logindelegate = Self

Wsbxmpptool.getsharedinstance (). Userlogin ()

}

/** methods in the login protocol */

Func loginsuccess () {

Print ("Login Successful")

Switch to the main interface

Let StoryBoard = Uistoryboard.init (name: "Main", Bundle:nil)

Uiapplication.sharedapplication (). Keywindow?. Rootviewcontroller =

Storyboard.instantiateinitialviewcontroller ()

}

Func loginfailed () {

Print ("Login Failed")

}

Func Loginneterror () {

Print ("Network error at logon")

}

Override Func Viewdidload () {

Super.viewdidload ()

}

deinit{

Print ("deinit\ (self)")

}

}

Registerviewcontroller:

Import UIKit

Class Wsbregisterviewcontroller:uiviewcontroller,wsbxmppregisterdelegate {

@IBOutlet weak var userregisername:uitextfield!

@IBOutlet weak var userregisterpasswd:uitextfield!

@IBAction func Registerbtnclick (sender:anyobject) {

Indicates that this is a registration behavior

Wsbuserinfo.getshareinstance (). IsLogin = False

Wsbuserinfo.getshareinstance (). Userregistername = self.userregisername.text!

Wsbuserinfo.getshareinstance (). userregisterpasswd = self.userregisterpasswd.text!

To invoke the registration method of Xmpptool

Wsbxmpptool.getsharedinstance (). Registerdelegate = Self

Wsbxmpptool.getsharedinstance (). Userregister ()

}

/** implementing the method in the Registration protocol */

Func registersuccess () {

Print ("Registration successful")

Self.dismissviewcontrolleranimated (True, Completion:nil)

}

Func registerfailed () {

Print ("Registration failed")

}

Func Registerneterror () {

Print ("Network error at Registration")

}

}

Login and Registration agreement

Import Foundation

Login protocol

Protocol Wsbxmpplogindelegate:nsobjectprotocol {

Login successful

Func loginsuccess ()

Logon failure

Func loginfailed ()

Network error

Func Loginneterror ()

}

Registration Agreement

Protocol Wsbxmppregisterdelegate:nsobjectprotocol {

Registration successful

Func registersuccess ()

Registration failed

Func registerfailed ()

Registering a network error

Func Registerneterror ()

}

Swift:

Import UIKit

/** Bridging file Item--buildsettings Search objective-c Bride Settings

This is an XMPP tool class that can complete login and register lines

*/

Class Wsbxmpptool:nsobject, Xmppstreamdelegate {

var xmppstream:xmppstream!

Delegate of Login

Weak var logindelegate:wsbxmpplogindelegate?

Registered Deletegate

Weak var registerdelegate:wsbxmppregisterdelegate?

Ensure that Xmppstream is not empty when used

Override Init () {

Super.init ()

Setupxmppstream ()

}

Class Func getsharedinstance (), Wsbxmpptool {

struct Singleton {

static var predicate:dispatch_once_t = 0

static Var instance:wsbxmpptool? = Nil

}

Dispatch_once (&singleton.predicate) {(), Void in

Singleton.instance = Wsbxmpptool ()

}

Return singleton.instance!

}

Set up the Flow settings agent

Func Setupxmppstream () {

Xmppstream = Xmppstream ()

Xmppstream.adddelegate (self, delegatequeue:dispatch_get_main_queue ())

}

Connecting to a server

Func Connecttohost () {

Disconnect from the last log on and you won't be able to log in again

Xmppstream.disconnect ();

Call Settings Xmppstream

if Self.xmppstream = = Nil {

Self.setupxmppstream ()

}

var username:string? = Nil

If Wsbuserinfo.getshareinstance (). islogin! {

UserName = Wsbuserinfo.getshareinstance (). UserName

}else{

UserName = Wsbuserinfo.getshareinstance (). Userregistername

}

Build Jid settings hostname and port

Xmppstream.myjid = Xmppjid.jidwithuser (userName, Domain:xmppdomain, resource: "iphone")

Xmppstream.hostname = Xmpphostname

Xmppstream.hostport = Xmppport

do {

Try Xmppstream.connectwithtimeout (Xmppstreamtimeoutnone)

}catch let error as nserror{

Print (error.description)

}

}

Connection succeeded (proxy method)

Func Xmppstreamdidconnect (sender:xmppstream!) {

Call to send password request authorization

If Wsbuserinfo.getshareinstance (). islogin! {

SELF.SENDLOGINPASSWD ()

}else{

Register with a password

SELF.SENDREGISTERPASSWD ()

}

}

Send Password Registration

Func sendregisterpasswd () {

do{

Try Xmppstream.registerwithpassword (Wsbuserinfo.getshareinstance (). userregisterpasswd)

}catch let error as nserror{

Print (error.description)

}

}

Send Password Request authorization

Func sendloginpasswd () {

bo=

Try Xmppstream.authenticatewithpassword (Wsbuserinfo.getshareinstance (). userpasswd)

}catch let error as nserror{

Print (error.description)

}

}

Authorization Success (proxy method)

Func xmppstreamdidauthenticate (sender:xmppstream!) {

Print ("Authorization succeeded")

Send online message

Self.sendonline ()

Method of invoking the proxy's login success

Logindelegate?. Loginsuccess ()

}

Send online message

Func Sendonline () {

Xmppstream.sendelement (Xmpppresence ())

}

Authorization failure

Func Xmppstream (sender:xmppstream!, Didnotauthenticate error:ddxmlelement!) {

Print (error.description)

Authorization failed to invoke the agent's logon failure method

Logindelegate?. LoginFailed ()

}

Connection disconnect (proxy method)

Func xmppstreamdiddisconnect (sender:xmppstream!, Witherror error:nserror!) {

If the network has a problem disconnecting, there is a value in the error

The error is nil if you are actively disconnecting

If error! = Nil {

If Wsbuserinfo.getshareinstance (). islogin! {

Network error calling agent for logon network problem

Logindelegate?. Loginneterror ()

}else{

Network issues during registration

Registerdelegate?. Registerneterror ()

}

}

}

Registration Successful (proxy method)

Func Xmppstreamdidregister (sender:xmppstream!) {

Successful registration of the calling agent

Registerdelegate?. Registersuccess ()

}

Registration failed (proxy method)

Func Xmppstream (sender:xmppstream!, Didnotregister error:ddxmlelement!) {

Registerdelegate?. Registerfailed ()

}

How the user completes the login

Func Userlogin () {

Self.connecttohost ()

}

How the user completes the registration

Func Userregister () {

Self.connecttohost ()

}

}

6. Swift enables a simple login registration based on XMPP and OpenFire