Sendasynchronousrequest Was Deprecated in iOS 9, How to Alter Code to Fix

sendAsynchronousRequest was deprecated in iOS 9, How to alter code to fix

Use NSURLSession instead like below,

For Objective-C

NSURLSession *session = [NSURLSession sharedSession];
[[session dataTaskWithURL:[NSURL URLWithString:"YOUR URL"]
          completionHandler:^(NSData *data,
                              NSURLResponse *response,
                              NSError *error) {
            // handle response

  }] resume];

For Swift,

    var request = NSMutableURLRequest(URL: NSURL(string: "YOUR URL")!)
    var session = NSURLSession.sharedSession()
    request.HTTPMethod = "POST"

    var params = ["username":"username", "password":"password"] as Dictionary<String, String>

    request.HTTPBody = try? NSJSONSerialization.dataWithJSONObject(params, options: [])

    request.addValue("application/json", forHTTPHeaderField: "Content-Type")
    request.addValue("application/json", forHTTPHeaderField: "Accept")

    var task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
        print("Response: \(response)")})

    task.resume()

For asynchronously query, from Apple docs

Like most networking APIs, the NSURLSession API is highly
asynchronous. It returns data in one of two ways, depending on the
methods you call:

To a completion handler block that returns data to your app when a
transfer finishes successfully or with an error.

By calling methods on your custom delegate as the data is received.

By calling methods on your custom delegate when download to a file is
complete.

sendAsynchronousRequest deprecated in iOS 9, how do I fix my function

Try this for

Swift 3.0

URLSession.shared.dataTask(with: request) {data, response, error in
   if (error == nil) {
      //Do needful things // Your code . . . 
   } else {
      print("Error : \(error?.localizedDescription)");
   }
}.resume();

sendAsynchronousRequest deprecated in iOS 9

As the warning warns, NSURLConnection is dead. Long live NSURLSession.

let session = NSURLSession.sharedSession()
let urlString = "https://api.yoursecureapiservergoeshere.com/1/whatever"
let url = NSURL(string: urlString)
let request = NSURLRequest(URL: url!)
let dataTask = session.dataTaskWithRequest(request) { (data:NSData?, response:NSURLResponse?, error:NSError?) -> Void in
  print("done, error: \(error)")
}
dataTask.resume()

sendAsynchronousRequest was deprecated in iOS 9 (Swift 2) - Transfer Code?

This is the most basic way you'd use a shared session:

if let url = NSURL(string: "http://mytesturl.com"),
       userField = UserTextField.text {

    let request = NSMutableURLRequest(URL: url)
    let bodyData = "data=" + userField
    request.HTTPMethod = "POST"
    request.HTTPBody = bodyData.dataUsingEncoding(NSUTF8StringEncoding)

    let session = NSURLSession.sharedSession()

    let dataTask = session.dataTaskWithRequest(request,completionHandler: {(data,response,error) in

        }
    )

    dataTask.resume()
}

For more detail on the other approaches including background and ephemeral sessions, as well as how to handle the NUSRLResponse, see my blogpost.

iOS9 sendSynchronousRequest deprecated

Use NSURLSession instead like below,

For Objective-C

NSURLSession *session = [NSURLSession sharedSession];
[[session dataTaskWithURL:[NSURL URLWithString:londonWeatherUrl]
          completionHandler:^(NSData *data,
                              NSURLResponse *response,
                              NSError *error) {
            // handle response

  }] resume];

For Swift,

var request = NSMutableURLRequest(URL: NSURL(string: "YOUR URL"))
var session = NSURLSession.sharedSession()
request.HTTPMethod = "POST"

var params = ["username":"username", "password":"password"] as Dictionary<String, String>

var err: NSError?
request.HTTPBody = NSJSONSerialization.dataWithJSONObject(params, options: nil, error: &err)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")

var task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
    println("Response: \(response)")})

task.resume()

Deprecated: 'sendAsynchronousRequest:queue:completionHandler:' in iOS9

dataTaskWithRequest:completionHandler: is an instance method, not a class method. You have to either configure a new session or use the shared one:

[[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:ourBlock] resume];

NSURLConnection deprecated in iOS9

Now you have to use NSURLSession

Example (GET):

-(void)placeGetRequest:(NSString *)action withHandler:(void (^)(NSData *data, NSURLResponse *response, NSError *error))ourBlock {

    NSString *urlString = [NSString stringWithFormat:@"%@/%@", URL_API, action];

    NSURL *url = [NSURL URLWithString:urlString];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    [[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:ourBlock] resume];
}

Now you will need to call that method with an action (or your full URL if you prefer) and the block that will be executed when the API call return.

[self placeGetRequest:@"action" withHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
    // your code
}];

Inside that block, you will received a NSData with the response data and NSURLResponse with the HTTP response. So now, you can put your code there:

NSURL *documentsURL = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
documentsURL = [documentsURL URLByAppendingPathComponent:@"localFile.pdf"];

[data writeToURL:documentsURL atomically:YES];

Main difference between NSURLSession and NSURLConnection

• NSURLConnection: if we have an open connection with NSURLConnection and the system interrupt our App, when our App goes to background mode, everything we have received or sent were lost.
  

• NSURLSession: solve this problem and also give us out of process downloads. It manage the connection process even when we don't have access. You will need to use application:handleEventsForBackgroundURLSession:completionHandler in your AppDelegate
  

So with the use of NSURLSession, you don't need to manage or to check
your internet connection because OS does it for you.

UIAlertView is Deprecated how can i fix this code as UIAlertController? I can't figure out how to use switch statement in UIAlertController

AlertView is depricated in iOS 8.So we need to use UIAlertController.

UIAlertController * alert = [UIAlertController
            alertControllerWithTitle:@"Title"
                             message:@"Message"
                      preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction *actionAccessAddressbook = [UIAlertAction
                    actionWithTitle:@"Access"
                              style:UIAlertActionStyleDefault
                            handler:^(UIAlertAction * action) {
                         [self displayFindFriendView:[NSNumber numberWithInteger: CS_CONTACTS ]];
                            }];

UIAlertAction *actionFindFriendEmail = [UIAlertAction
                        actionWithTitle:@"Find Friend Email"
                                  style:UIAlertActionStyleDefault
                                handler:^(UIAlertAction * action) {
                                   //...Do your stuff here
                                }];

UIAlertAction *actionLogout = [UIAlertAction
                        actionWithTitle:@"Logout"
                                  style:UIAlertActionStyleDefault
                                handler:^(UIAlertAction * action) {
                                   [self userLogout];
                                }];
UIAlertAction *actionClearSearchHistory = [UIAlertAction
                        actionWithTitle:@"ClearSearchHistory"
                                  style:UIAlertActionStyleDefault
                                handler:^(UIAlertAction * action) {
                                  [[CSCoreDataHandler sharedInstance] deleteManagedObjectsInModel:@"CSRecentSearch"];
                                }];

[alert addAction:actionAccessAddressbook];
[alert addAction:actionFindFriendEmail];
[alert addAction:actionLogout];
[alert addAction:actionClearSearchHistory];

[self presentViewController:alert animated:YES completion:nil];

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