How to open twitter page in twitter app from my iphone app? - iphone

Question

The page I want to open using twitter app:
https://twitter.com/#!/PAGE
To open twitter app I use the following code:
NSURL *urlApp = [NSURL URLWithString: [NSString stringWithFormat:#"%#", #"twitter://https://twitter.com/#!/PAGE"]];
[[UIApplication sharedApplication] openURL:urlApp];
But this code doesn't seem to work as expected, I got only twitter app launched without the page which i want to show.

Answer 1

You are looking for the following url:
twitter:///user?screen_name=PAGE
Note that Twitter is not installed on all devices. You should check the result of openURL method. If it fails, open the page in Safari with regular url.

Answer 2

The following code opens twitter page on twitter app if it is already installed, otherwise opens twitter on safari:
NSURL *twitterURL = [NSURL URLWithString:#"twitter://user?screen_name=username"];
if ([[UIApplication sharedApplication] canOpenURL:twitterURL])
[[UIApplication sharedApplication] openURL:twitterURL];
else
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"http://www.twitter.com/username"]];
Don't forget to replace 'username' with your name.

Answer 3

I know its quite a late response to this question and I agree that, Murat's answer is absolutely correct.
Simply add a check as follows:
NSURL *urlApp = [NSURL URLWithString: [NSString stringWithFormat:#"%#", #"twitter:///user?screen_name=PAGE]];
if ([[UIApplication sharedApplication] canOpenURL:urlApp]){
[[UIApplication sharedApplication] openURL:urlApp];
}
I hope this helps someone. Cheers!! :)

Answer 4

This is the full code required in Swift. I am using Swift 4 but i believe it is the same for Swift 3.
let Username = "YOUR_USERNAME_HERE"
let appURL = NSURL(string: "twitter:///user?screen_name=\(Username)")!
let webURL = NSURL(string: "https://twitter.com/\(Username)")!
let application = UIApplication.shared
if application.canOpenURL(appURL as URL) {
application.open(appURL as URL)
} else {
// if Twitter app is not installed, open URL inside Safari
application.open(webURL as URL)
}
Don't forget to add the Info keys needed to use canOpenURL:

Answer 5

#Alexey: If you just want to know how to launch twitter from your application do this:
NSURL *urlApp = [NSURL URLWithString: [NSString stringWithFormat:#"%#", #"twitter://"]];
if ([[UIApplication sharedApplication] canOpenURL:urlApp]){
[[UIApplication sharedApplication] openURL:urlApp];
}else{
UIAlertView *appMissingAlertView = [[UIAlertView alloc] initWithTitle:#"Twitter App Not Installed!" message:#"Please install the Twitter App on your iPhone." delegate:nil cancelButtonTitle:nil otherButtonTitles:#"Ok",nil];
[appMissingAlertView show];
[appMissingAlertView release];
}