Error when entering Facebook login in iPhone App - xcode

I am attempting to integrate the Facebook API in my iOS app, but am getting the following error:
WebKit discarded an uncaught exception in the
webView:decidePolicyForNavigationAction:request:frame:decisionListener:
delegate: Application tried to present
modally an active controller .
How can I solve this error?
Here is my code:
[_webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:#"about:blank"]]];
NSString *redirectUrlString = #"http://www.facebook.com/connect/login_success.html";
NSString *authFormatString = #"https://graph.facebook.com/oauth/authorize?client_id=%#&redirect_uri=%#&scope=%#&type=user_agent&display=touch";
NSString *urlString = [NSString stringWithFormat:authFormatString, _apiKey, redirectUrlString, _requestedPermissions];
NSURL *url = [NSURL URLWithString:urlString];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[_webView loadRequest:request];
For checking the login credential, i am writing the below code inside the function logincheck
if ([urlString rangeOfString:#"login.php"].location != NSNotFound)
{
[_delegate displayRequired];
}

Related

Unsupported URL on ios 8

I'm trying to fetch a json from google places with the following code:
NSString *query = [NSString stringWithFormat:#"https://maps.googleapis.com/maps/api/place/search/json?location=%f,%f&radius=%i&types=%#&sensor=true&key=%#", center.latitude, center.longitude, rad, types, kGOOGLE_API_KEY];
NSLog(#"%#",query);
NSURL *googleRequestURL=[NSURL URLWithString:query];
[NSURLConnection sendAsynchronousRequest:[[NSURLRequest alloc] initWithURL:googleRequestURL] queue:[[NSOperationQueue alloc] init] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
if (error) {
NSLog(#"Error fetching data: %#",[error description]);
} else {
//To-do
}
}];
The resulting url is: https://maps.googleapis.com/maps/api/place/search/json?location=37.337566,-122.041202&radius=1000&types=accounting|bowling_alley|doctor&sensor=true&key=MY_KEY
(my key is ommitted for obsious reasons)
Which works fine from my laptop's browser, but return the error:
Error Domain=NSURLErrorDomain Code=-1002 "unsupported URL" UserInfo=0x7fe47bc138f0 {NSLocalizedDescription=unsupported URL, NSUnderlyingError=0x7fe47be9dbe0 "unsupported URL"}
I tried using http instead of https (in the browser it returns a json with some error message, but still returns something) with no success.
What am I doing wrong?
This is how I got it resolved. Good Luck!
NSString *google = #"https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=%f,%f&radius=500&types=%#&key=%#";
NSString *link = [NSString stringWithFormat:google, coordinate.latitude, coordinate.longitude, types, GOOGLE_KEY];
NSURL *url = [NSURL URLWithString:[link stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSMutableURLRequest *request =[NSMutableURLRequest requestWithURL:url];

App terminates when using NSURL with parameters

In my app I sent a request to my PHP file to download some info. Whenever I use the code below it will terminate:
-(void)downloadItems
{
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
NSString *myString = [prefs stringForKey:#"commentsId"];
NSLog(#"The comments id is : %#",myString);
// Download the json file
NSString *urlstring = [NSString stringWithFormat:#"http:/MyWebSite.com/checkphp.php?title=%#", myString];
NSURL *jsonFileUrl = [NSURL URLWithString:urlstring];
NSLog(#"The qasida id is: %#", jsonFileUrl);
// Create the request
NSURLRequest *urlRequest = [[NSURLRequest alloc] initWithURL:jsonFileUrl];
// Create the NSURLConnection
[NSURLConnection connectionWithRequest:urlRequest delegate:self];
}
But if I remove myString from urlString like this:
NSURL *jsonFileUrl = [NSURL URLWithString:#"http:/myWebSite/checkphp.php?title=%#"];
the app will not terminate and it will retrieve data.
Can any one tell me what is wrong with my code?
Thanks

Dynamic UIWebView Link

So normally to load a UIWebView I do..
NSURL *url = [NSURL URLWithString:#"http://www.google.com"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[_webView loadRequest:request];
However, now I need to do this dynamically, depending on a table cell that a user clicks. I load the table cells from JSON and everything works fine. Now I need to get the "id" of the post in the cell, and load it dynamically. Currently I've tried this but it doesn't work...
NSURL *url = [NSURL URLWithString:#"http://www.google.com/story.php?id="];
url = [NSURL URLWithString:storyId relativeToURL:url];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[_webView loadRequest:request];
Any tips?
Why don't you just format the URL string?
NSURL *url = [NSURL URLWithString:[NSString
stringWithFormat:#"http://www.google.com/story.php?id=%#", storyId]];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[_webView loadRequest:request];

How do I load html into a webview?

I have just re-designed my iPhone app using Storyboard... questin is: how do I address the the UIWebView so I can load the html? (I am a newbie when it comes to Obj-C, having done my previous app in MonoTouch, so I'm kinda lost). :D
- (void)viewDidLoad {
NSString *urlAddress = #”http://www.stackoverflow.com”;
NSURL *url = [NSURL URLWithString:urlAddress];
NSURLRequest *req = [NSURLRequest requestWithURL:url];
[webView loadRequest:requestObj];
}
Apple Developer docs are really good resource. The usage of UIWebView is outlined here enter link description here
To load a network resource simply pass a NSURLRequest object to loadRequest.
[self.myWebView loadRequest:[NSURLRequest
requestWithURL:[NSURL URLWithString:#"http://www.apple.com/"]]];
You can also do this in viewDidLoad (a UIWebView is a subclass of UIView and inherits all its methods). For example, loading a local pdf resource.
- (void)viewDidLoad {
[super viewDidLoad];
NSString *thePath = [[NSBundle mainBundle] pathForResource:#"iPhone_User_Guide" ofType:#"pdf"];
if (thePath) {
NSData *pdfData = [NSData dataWithContentsOfFile:thePath];
[(UIWebView *)self.view loadData:pdfData MIMEType:#"application/pdf"
textEncodingName:#"utf-8" baseURL:nil];
}
}
To setup your UIWebView with a link, just use the following code.
var URLPath = "Insert email address here"
Then use...
loadAddressURL()
and finally...
func loadAddressURL(){
let requestURL = NSURL(string:URLPath)
let request = NSURLRequest(URL: requestURL!)
Webview.loadRequest(request)
}

Session Maintenance for Login Page

My Requirement: I want to send login details(email, password) to server, have to maintain session for valid username.
How to create & maintain a session using "NSURLConnection" of iphone SDK?
If you found any Tutorials/Code snippets on this issue,Please post the corresponding linke here.
Advance thanks for your help.
NSString *urlString = [NSString stringWithFormat:#"http://www.mywebsite.com/login.php?email=username#yahoo.com&pwd=pass"];
NSURL *url = [NSURL URLWithString:urlString];
NSURLRequest *request = [[NSURLRequest alloc] initWithURL: url];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection release];
[request release];

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