How to open url from string in webview for iPhone

问题

I want to just open a url from my string my string is already having url I just want to show in UIWebView

myString=http://maps.google.com/maps?zoom=8&sensor=false&lci=transit&layer=traffic&saddr=1.31224,103.865&daddr=1.310664,103.857132

NSString *urlString = [myString absoluteString];
NSString *urlAddress =myString;// 
NSURL *url = [NSURL URLWithString:urlString ];

NSLog(@" url is %@",url); its null 
//URL Requst Object
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];


NSLog(@" url req  is %@",url);
//Load the request in the UIWebView.
[webe loadRequest:requestObj];

I am getting this error

se&lci=transit&layer=traffic&saddr=1.31224,103.865&daddr=1.310664,103.857132
2010-08-02 13:20:08.253 Wat2Eat[5332:207] *** -[NSCFString absoluteString]: unrecognized selector sent to instance 0x1ac570
2010-08-02 13:20:08.267 Wat2Eat[5332:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSCFString absoluteString]: unrecognized selector sent to instance 0x1ac570'
2010-08-02 13:20:08.283 Wat2Eat[5332:207] Stack: (

回答1:

Add this to your method:

    NSString *urlAddress = @"http://myurl.com";

//Create a URL object.
NSURL *url = [NSURL URLWithString:urlAddress];

//URL Requst Object
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];

//Load the request in the UIWebView.
[detailWebView loadRequest:requestObj];

回答2:

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
NSURL *websiteUrl = [NSURL URLWithString:@"http://www.google.com"];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:websiteUrl];
[myWebView loadRequest:urlRequest]; 
}

来源：https://stackoverflow.com/questions/3385210/how-to-open-url-from-string-in-webview-for-iphone