In my app, I have a view controller that contains a UIWebView. This View Controller has the UIWebView as an IBOutlet. When loading the view I just get a white screen with my navigation bar at the top. Here is the code for loading the UIWebView. Originally my completeURL wasn't being formatted correctly and was just null. No information I can scour through online seems to be able to help me with this issue.
-(void) viewWillAppear:(BOOL)animated
{
NSString *stringURL = [NSString stringWithFormat:#"www.ncbi.nlm.nih.gov/pubmed/?term=%#", _URL];
NSURL *completeURL = [NSURL URLWithString: [stringURL stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding]];
NSURLRequest *request = [NSURLRequest requestWithURL:completeURL];
[_webView loadRequest:request];
NSLog(#"%#", request);
}
once check this line may be problem is here replace this once and check it,
NSString *stringURL = [NSString stringWithFormat:#"http://www.ncbi.nlm.nih.gov/pubmed?term=%#", _URL];
I think the problem could be in:
NSURL *completeURL = [NSURL URLWithString: [stringURL stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding]];
check intermediate strings
Related
Am displaying a Image on a web view and it doesn't fit the web view completely and shows blank white space around the border.How can i fit or scale the image completely to the size of web view?
NSURL *url = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[self.webView loadRequest:request];
self.webView.backgroundColor=[UIColor blackColor];
self.webView.delegate = self;
[self.webView setScalesPageToFit:YES];
Try this html code snippet
<html><body><img src='%#' width='100%' height='100%'></body></html>
It will fill the web view completely without any white space.
try to load like this
- (void) showImageWithLoadHTMLString {
// Create URL string for image file location
NSURL *imageURL = [NSURL fileURLWithPath: path];
// Create HTML string from image URL
NSString *htmlString = #"<html><body><img src='%#' width='900'></body></html>";
NSString *imageHTML = [[NSString alloc] initWithFormat:htmlString, imageURL];
// Load image in UIWebView
self.webView.backgroundColor=[UIColor blackColor];
self.webView.scalesPageToFit = YES;
[self.webView loadHTMLString:imageHTML baseURL:nil];
}
Stucked on load the below Local path url in UIWebview. Find the url in spinepath, then i converted to url [SpinePathUrl].
My issue is, when i try to load,i'm getting nil value.
For checking purpose, i pasted the SpinepathUrl into browser it show webpage not found.Then, i changed SpinePathUrl "arugoswami-4.xhtml%23toc_marker-4" into "arugoswami-4.xhtml#toc_marker-4", its showed result.
Is the # is my issue in url.? Why the # converted to %23, when it converting from String to Url.
spinepath = [NSString stringWithFormat:#"%#%#",documentsDirectory,Path];
spinepath = [spinepath stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
spinepath = [spinepath stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
[/Users/blazedream/Library/Application Support/iPhone Simulator/7.1/Applications/E19D2CD0-E0DC-460E-8BC9-97A9C8010910/Documents/UnzippedEpub/OEBPS/arugoswami-4.xhtml#toc_marker-4]
NSURL *SpinePathUrl = [NSURL fileURLWithPath:spinepath];
[file:///Users/blazedream/Library/Application%20Support/iPhone%20Simulator/7.1/Applications/E19D2CD0-E0DC-460E-8BC9-97A9C8010910/Documents/UnzippedEpub/OEBPS/arugoswami-4.xhtml%23toc_marker-4]
NSURLRequest *request = [NSURLRequest requestWithURL:SpinePathUrl];
[webView loadRequest:request];
Try adding fragment manually
NSURL *baseUrl = [NSURL fileURLWithPath:#"... arugoswami-4.xhtml"];
NSURL *fullURL = [NSURL URLWithString:#"#toc_marker-4" relativeToURL:baseUrl];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:fullURL];
[myWebView loadRequest:urlRequest];
I have an application at the moment that basically opens a url depending on what the user has typed into a textbox. The logic for this is as such:
Predetermined beginning + User Input + Predetermined End
So basically my URL is 3 concatenated strings. Now I know the link is being formed properly (I've put the same snip of code into a label) but nothing happens when I press the button to load the webview.
It works perfectly fine when I use the below, where I explicitly type https://google.com
- (IBAction)btnSearchPress:(id)sender {
[self.view endEditing:YES];
[super viewDidLoad];
NSString *fullURL = #"https://google.com";
NSURL *url = [NSURL URLWithString:fullURL];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_wbView loadRequest:requestObj];
}
However nothing happens when I use this code which includes my concatenated url:
- (IBAction)btnSearchPress:(id)sender {
[self.view endEditing:YES];
[super viewDidLoad];
NSString *fullURL = [NSString stringWithFormat:#"%#%#%#", _urlPrefix.text,_txtInput.text, _urlSuffix.text];
NSURL *url = [NSURL URLWithString:fullURL];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_wbView loadRequest:requestObj];
}
Any help would be much appreciated.
UPDATE: I'm fairly sure having the stringWithFormat is causing this problem just unsure how to get around it.:
Check if fullURL starts with http:// or https://, if not prefix that.
- (IBAction)btnSearchPress:(id)sender {
[self.view endEditing:YES];
[super viewDidLoad];
NSString *fullURL = [NSString stringWithFormat:#"%#%#%#", _urlPrefix.text,_txtInput.text, _urlSuffix.text];
if ( ! ([fullURL hasPrefix:#"http://"] || [ fullURL hasPrefix:#"https://"]) ) {
fullURL = [NSString stringWithFormat:#"http://%#", fullURL ];
}
NSURL *url = [NSURL URLWithString:fullURL];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_wbView loadRequest:requestObj];
}
I have some issues loading a site that apparently has to do with needing to properly set a baseurl. The main site is http://www.oklahomachristianacademy.org and the site address I need to have open is a string that returns as
applewebdata://F6224B10-25ED...
So, in my code I thought this would work to set the baseurl and the string attached above to load into the app.
-(void)viewWillAppear:(BOOL)animated {
NSURL *theurl = [NSURL URLWithString:#"http://www.oklahomachristianacademy.org/"];
[savedweb loadHTMLString:(NSString *)link baseURL:(NSURL *)theurl];
}
However, this does not work, and the UIWebview simply displays the applewebdata:// line again. What am I missing?
use this code
//NSString *urlAddress = #"http://www.google.com";
NSString *urlAddress = #"http://cagt.bu.edu/page/IPhone-summer2010-wiki_problemsandsolutions";
//Create a URL object.
NSURL *url = [NSURL URLWithString:urlAddress];
//URL Requst Object
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
//Load the request in the UIWebView.
[webView loadRequest:requestObj];
I have the following code that allows me to load a set URL each time, placed in my viewDidLoad method:
NSString *urlAddress = #"http://google.com";
NSURL *url = [NSURL URLWithString:urlAddress];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_webView loadRequest:requestObj];
Now the user can of course go to any webpage from here and if the user decides to dismiss the view I want for them to be able to return to it.
Now I have this code, through reading various forums and searches:
again the viewDidLoad - now looks like this:
NSURLRequest *currentRequest = [_webView request];
NSURL *currentURL = [currentRequest URL];
if(currentURL != nil)
{
NSString *urlAddress = currentRequest;
NSURL *url = [NSURL URLWithString:urlAddress];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_webView loadRequest:requestObj];
}
else {
NSString *urlAddress = #"http://google.com";
NSURL *url = [NSURL URLWithString:urlAddress];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_webView loadRequest:requestObj];
}
and in my viewDidUnLoad I have this:
-(void)viewDidUnload {
NSURLRequest *currentRequest = [_webView request];
NSURL *currentURL = [currentRequest URL];
NSLog(#"Current URL is %#", currentURL.absoluteString);
[NSURLConnection connectionWithRequest:currentRequest delegate:self];
}
a) Am I on the right track for achieving this?
b) I have a warning created on this line : `NSString *urlAddress = currentRequest;
which is:
Incompatible pointer types initializing 'NSString *__strong' with an expression of type 'NSURLRequest *__strong'
Any help is appreciated:-)
Thank you:-)
PS I started this problem out in this question, but felt it was worth a new one, so forgive me if you do not think the same.
`
NSString *urlAddress = currentRequest;
NSURL *url = [NSURL URLWithString:urlAddress];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_webView loadRequest:requestObj];
Could just be
[_webView loadRequest:currentRequest];
You might want to experiment with not unloading the view/view controller when the user dismisses it then there won't be a time delay when the user brings it back. (Maybe you could instead make it hidden instead of unloading it for example when the user dismisses it, or send it to the back of the navigation controller stack, assuming you have one as the root view controller).
P.S.
Your warning is because you're trying to assign an NSURLRequest object to an NSString object.