From firstViewController I send a url to load on secondViewController. The url loads correctly. They, I press cancel button to go back to firstViewController:
[self dismissViewControllerAnimated:YES completion:nil];
Then again if I come back to secondViewController from firstViewController, I see a blank space with horizontal scrollbar.
I've used the following code to load url:
NSString *urlAddress = #"http://www.apple.com";
NSURL *url = [NSURL URLWithString:urlAddress];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[self.myWebView loadRequest:requestObj];
I've implemented webview delegate methods and they are being called without any problem. for example following methods are called:
– webViewDidStartLoad:
– webViewDidFinishLoad:
Even there is no error to load and I've printed html source codes in -webViewDidFinishLoad and it Logged right codes.
My device iOS version is: iOS 9.3.2
Update:
The same app works well on my simulator. But doesn't work on real device.
Related
I got a static tableList of Categories on a view controller (called CategoriesViewController ) in main storyboard, this contain the categories of the Blog shown in a webView in fistViewController.
When I click (or tap) in a Category it must to send me to webView Page and change the URL (eg mainpage is www.example.com and category is www.example.com/category)
I've just made a simple webView in first page view like:
- (void)viewDidLoad {
[super viewDidLoad];
NSString *fullURL = #"http://www.example.com";
NSURL *url = [NSURL URLWithString:fullURL];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_webView loadRequest:requestObj];
}
How can I interact with elements in another controller and change NSURLRequest appending the category after slash?
Should I get the elements on the Table View as ID?
And what's the code to archieve this?
As I understood that is a TableView. So you need to implement the method didSelectRowAtIndexPath and I believe you have an array of those categories. so you need to get the indexPath.row (indexPath is an argument in this method) and pass it along to the next view controller by appending it to the initial URL.
I have been using AMSlidemenu with multiple AMSlideMenuContentSegues.
They all work fine at the moment as they just display a label.
The first view controller I have added a web view and given it its own custom class .h and .m file which point to a url but every time I launch the application crashes.
.....
- (void)viewDidLoad
{
NSURL *url = [NSURL URLWithString:#"http://google.com"];
NSURLRequest *requestURL = [NSURLRequest requestWithURL:url];
[websiteWebview loadRequest:requestURL]; **Thread 1: Breakpoint 1.1**
[super viewDidLoad];
// Do any additional setup after loading the view.
}
......
I dont understand whats happening ... I m a novice when it comes to Xcode so any help will be appreciated.
I hope I have contextualized my problem.
I have an app where on the very last UIViewController there is a UIWebView... the user navigates through the app and at the very end they can transition (modal) to the final UIViewController with a UIWebView... in it's viewDidLoad I have the UIWebView load the page.
The problem is it takes about 8 seconds to load this page and that annoys users.
How can I load the UIWebView way ahead of time (like when the app is first launched!) if that UIViewController hasn't even been presented yet?
I had your same problem for UIWebView inside a UIPageViewController and I found a better solution.
If you are in FirstViewController and you have your webView in your SecondViewController put the loadHTMLString or loadRequest method in the viewDidLoad of your SecondViewController and call [secondViewController.view layoutSubviews] for start loading in your FirstViewController.
Ex:
FirstViewController
-(void)viewDidLoad{
[super viewDidLoad];
// _secondViewController -> An instance of SecondVieController
[_secondViewController.view layoutSubviews];
}
SecondViewController
-(void)viewDidLoad{
[super viewDidLoad];
NSURL *url =[NSURL URLWithString:#"http://www.google.it"];
NSURLRequest *request =[NSURLRequest requestWithURL:url];
[self.webView loadRequest:request];
}
What u can do is, load the html string
NSString *htmlFile = [[NSBundle mainBundle] pathForResource:self.path ofType:#"htm"];
NSError * error;
NSString* htmlString = [NSString stringWithContentsOfFile:htmlFile encoding:NSUTF8StringEncoding error:&error];
and when u display the webView load this content in your webView
[self.webView loadHTMLString:htmlString baseURL:[[NSBundle mainBundle] bundleURL]];
then your webview need only render your content and doesn't load the data
/// In Swift 2.0
do{
let path = NSBundle.mainBundle().pathForResource("theName", ofType: "html")!
let html = try String(contentsOfFile: path, encoding: NSUTF8StringEncoding)
webView.loadHTMLString(html, baseURL: nil)
}catch{
print("Error is happend")
}
Note: It works the same way for WKWebView
Not sure how much work you want to do for this but I think you could cache/store the data from the URL in something like a NSDictionary, or something similar, using [NSUserDefaults standardUserDefaults] and use that information before actually loading the page.
So, load the first time you use it, after it has been seen then store the data using NSUserDefaults. Next time you go to this page, load from the NSUserDefaults first and call the URL/API in the back ground then update NSUserDefaults with this new data.
If you are requesting or pulling specific information each time, then I don't think this will work. If that is your case, you can probably try loading the data/website in an earlier view controller (probably one that takes the user a while to navigate to) and then send that data to the webview. Something like delegate/protocol or maybe even NSNotificationCenter. Hope this helps.
UIWebView is very tricky object. Simple answer would be: no you can't.
UIWebView won't load a document or an URL if it is not in views hierarchy.
Don't try doing it in different thread/queue either.
What you can do is to add UIWebView to the views hierarchy at the very beginning (as you've mentioned) and then pass it to the last view controller with preloaded data. This may work, but it's not an elegant way.
Side questions is: why does it take 8 secs to load a page? Maybe you can download the content of this page earlier? Is it static or dynamic?
I have a UIViewController with a UIWebView where I'm placing a PDF.
The issue I'm facing is when I click on a table cell to show the PDF it does not show the first time however if i go back to the table and click on the cell again it appears.
I call the PDF to get loaded using the following:
if ([indexPath row] == 2)
{
NSString *path = [[NSBundle mainBundle] pathForResource:#"myFirstPdf" ofType:#"pdf"];
NSURL *url = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webViewVC.webView loadRequest:request];
webViewVC.parent = _parent;
[_parent pushViewController:webViewVC];
}
The webViewVC itself I allocate using an initWithNib which has the UIWebView - nothing fancy there, simply a UIWebView with a IBOutlet.
Any ideas?
I think you should try 2 things:
(1) First, try loading the PDF from the web view controller. This is really the standard way to do this, rather than doing a load request for a web view that is not even on screen yet. All outlets are guaranteed to be loaded only in viewDidLoad of the controller.
(2) Second, try making use of the UIWebViewDelegate. For example, you could call setNeedsDisplay on the web view once loading is finished.
My idea : the first time you try the action your "webViewVC" hasn't been loaded yet, so webViewVC.webView is nil
the second time as you have displayed the webViewVC in your first attempt, it has been loaded, so webViewVC.webView isn't nil;
create a property on your webViewVC where you will set your request
and on your webViewVC viewWillAppear method do your [self.webView loadRequest:self.request];
I have a WebView in my app that works fine but very slow to load. Is there a way to actually start loading the web view as soon as the app starts?
Thanks
[EconCalWebView setDelegate:self];
// Do any additional setup after loading the view.
NSURL *myURL = [NSURL URLWithString:#"http://www.forexyard.com/en/calendar.iframe?zone_id=9493"];
NSURLRequest *myRequest = [NSURLRequest requestWithURL:myURL];
[EconCalWebView loadRequest:myRequest];
You can write your code for loading webview in:
applicationDidFinishLaunching method available in AppDelegate Class.
Here you require to load your viewController first and then load webView.
Please find more details at : UIApplicationDelegate