How to launch Safari and open URL from iOS app

Question

On the settings page  I want to include three links to   My app support site YouTube app tutorial My primary site  ie  linked to a  Created by Dale Dietrich  label     I ve searched this site and the web and my documentation and I ve found nothing that is obvious   NOTE  I don t want to open web pages within my app  I just want to send the link to Safari and that link be open there  I ve seen a number of apps doing the same thing in their Settings page  so it must be possible

User · Answer

And  in case you re not sure if the supplied URL text has a scheme   NSString  text     www apple com   NSURL     url      NSURL alloc  initWithString text    if  url scheme length    0        text      http     stringByAppendingString text       url      NSURL alloc  initWithString text        UIApplication sharedApplication  openURL url

User · Answer

Here s what I did    I created an IBAction in the header  h files as follows   -  IBAction openDaleDietrichDotCom  id sender   I added a UIButton on the Settings page containing the text that I want to link to  I connected the button to IBAction in File Owner appropriately  Then implement the following    Objective-C    -  IBAction openDaleDietrichDotCom  id sender         UIApplication sharedApplication  openURL  NSURL URLWithString   http   www daledietrich com         Swift   IBAction in viewController  rather than header file   if let link   URL string   https   yoursite com       UIApplication shared open link

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In SWIFT 3 0                 if let url   URL string   https   www google com                      UIApplication shared open url  options

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In Swift 1 2  try this   let pth    http   www google com      if let url   NSURL string  pth           UIApplication sharedApplication   openURL url

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Here one check is required that the url going to be open is able to open by device or simulator or not  Because some times  majority in simulator  i found it causes crashes   Objective-C  NSURL  url    NSURL URLWithString   some url    if    UIApplication sharedApplication  canOpenURL url          UIApplication sharedApplication  openURL url       Swift 2 0  let url   NSURL   NSURL string   some url    if UIApplication sharedApplication   canOpenURL url         UIApplication sharedApplication   openURL url      Swift 4 2  guard let url   URL string   some url   else       return   if UIApplication shared canOpenURL url        UIApplication shared open url  options       completionHandler  nil

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Swift 5   func open scheme  String       if let url   URL string  scheme          if  available iOS 10                UIApplication shared open url  options                  completionHandler                    success  in                   print  Open   scheme     success                         else            let success   UIApplication shared openURL url           print  Open   scheme     success                     Usage   open scheme   http   www bing com     Reference   OpenURL in iOS10

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The non deprecated Objective-C version would be     UIApplication sharedApplication  openURL  NSURL URLWithString   http   apple com   options     completionHandler nil

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Try this   NSString  URL     xyz com   if   UIApplication sharedApplication  canOpenURL  NSURL URLWithString URL             UIApplication sharedApplication  openURL  NSURL URLWithString URL

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openURL    was deprecated in iOS 10 0  instead you should use the following instance method on UIApplication  open  options completionHandler    Example using Swift This will open  https   apple com  in Safari   if let url   URL string   https   apple com         if UIApplication shared canOpenURL url            UIApplication shared open url  options       completionHandler  nil            https   developer apple com reference uikit uiapplication 1648685-open

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Take a look at the -openURL  method on UIApplication  It should allow you to pass an NSURL instance to the system  which will determine what app to open it in and launch that application   Keep in mind you ll probably want to check -canOpenURL  first  just in case the URL can t be handled by apps currently installed on the system - though this is likely not a problem for plain http    links

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Swift 3 Solution with a Done button  Don t forget to import SafariServices  if let url   URL string   http   www yoururl com                  let vc   SFSafariViewController url  url  entersReaderIfAvailable  true              present vc  animated  true

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Swift 4 solution   UIApplication shared open NSURL string  http   yo lo    as URL  options   String   Any     completionHandler  nil

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Swift Syntax   UIApplication sharedApplication   openURL NSURL string  http   www reddit com        New Swift Syntax for iOS 9 3 and earlier  As of some new version of Swift  possibly swift 2    UIApplication sharedApplication   is now UIApplication shared  making better use of computed properties I m guessing   Additionally URL is no longer implicitly convertible to NSURL  must be explicitly converted with as   UIApplication sharedApplication openURL NSURL string  http   www reddit com    as  URL    New Swift Syntax as of iOS 10 0  The openURL method has been deprecated and replaced with a more versatile method which takes an options object and an asynchronous completion handler as of iOS 10 0  UIApplication shared open NSURL string  http   www reddit com     as URL

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Because this answer is deprecated since iOS 10 0  a better answer would be   if  available iOS 10 0           UIApplication shared open url  options       completionHandler  nil   else      UIApplication shared openURL url      y en Objective-c    UIApplication sharedApplication  openURL   url string  options     completionHandler   BOOL success            if  success                NSLog   Opened url

User · Answer

Swift 3 0  if let url   URL string   https   www reddit com         if  available iOS 10 0               UIApplication shared open url  options             else           UIApplication shared openURL url            This supports devices running older versions of iOS as well

[ios] How to launch Safari and open URL from iOS app

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