I have a Subview that load a Webview. In this Webview I load a file HTML locally in the Documents folder of my App. I need to check if the webview load another HTML file. Specifically:
Webview load "index.html" locally in my Documents folder
After 7 days a Javascript load another page with location.href= "index2.html",
When I load this WebView I need to check if the current URL is index.html or index2.html, if is the second I must change Subview!
How can I do this?
NSString *currentUrl = [[[yourWebView request] URL] absoluteString];
Use this NSURL method [NSURL fileURLWithPath:#"some/path/to/your/file" isDirectory:NO] and pass that to a NSURLRequest which is then passed to your UIWebView. You can get the path to your resource by using the [[NSBundle mainBundle] pathForResource...] methods.
NSURL *url = myWebView.request.URL;
Related
In my application I have a UIWebView in which I need to add browser like functionality(user can goBack,Forward or reload the page). To achieve this I have used the code for this tutorial.
In my code I have only one change in viewDidLoad:
I am loading data from a local html file like this:
NSString *htmlFile = [[NSBundle mainBundle] pathForResource:#"File name" ofType:#"html" inDirectory:NO];
NSData *htmlData = [NSData dataWithContentsOfFile:htmlFile];
[self.webView loadData:htmlData MIMEType:#"text/html" textEncodingName:#"UTF-8" baseURL:[NSURL URLWithString:#""]];
instead of:
NSURL* url = [NSURL URLWithString:#"http://iosdeveloperzone.com"];
NSURLRequest* request = [NSURLRequest requestWithURL:url];
[self.webView loadRequest:request];
After loading initial html file if I am making any click on that page than the back button should get enabled, instead of its getting enabled after second url click and so that I am not able to go back to the original home page.
Please help me with this.
Thanks.
I got an answer. It's because you load data into the webView without loadRequest. If you load data into webView as a string, then it won't have any url to go back or load the old page. So it won't store the data you given to the webView. For that, you need to provide the url as like this.
[self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:#"File name" ofType:#"html"] isDirectory:NO]]];
I made an hybrid app between objective C and javascript. My app works so:
When I press on the first button it will load a UIWebView
In this UIWebView I can save the html to the Documents folder
When I save the website I create a JSON to store informations and I save this JSON to Documents folder
When I press the second button, it will load another UIWebView in which there are a mobile site that read informations from JSON and present this data in a html list
When I press on the name of one site it will load the site from Documents folder
The first 4 points works great, but when I press on the site title I've trouble, indeed, the UIWebView shows me a page in which there are written that the page it's not stored on this server. When I navigate with Finder to the Documents folder of my app and I double click on the html site it shows me it in Safari. Why when I load it with an UIWebView doesn't work? I will post here a screenshot to understand my flow.
CODE: I post here the code to load the html:
viewDidLoad method where I call the method to load my page
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
self.webView.delegate = self;
//[self loadWebsite:#"http://localhost/root/main/index.html"];
[self loadWebsite:#"http://192.168.2.1/root/main/index.html"];
}
loadWebsite method
-(void)loadWebsite:(NSString*)site
{
NSURL *url = [NSURL URLWithString:site];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[self.webView setScalesPageToFit:YES];
[self.webView loadRequest:request];
}
This seems like a problem with how you are loading your html file into the webview. You should post the code where you are loading the uiwebview.
To load a webview with a local file use the following code :
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
pathForResource:#"htmlfilename" ofType:#"html" inDirectory:#"Documents"]];
[webview loadRequest:[NSURLRequest requestWithURL:url]];
You can refer to this post : Load resources from relative path using local html in uiwebview
I would like to display an image in html which is being displayed on a UIWebView from the App's Document directory.
Can someone suggest me how to accomplish that?
This can help you
Using HTML and Local Images Within UIWebView
Link to resources inside WebView - iPhone
NSString *path = [[NSBundle mainBundle] bundlePath];
NSURL *baseURL = [NSURL fileURLWithPath:path];
[webView loadHTMLString:htmlString baseURL:baseURL];
You can then refer to your images like this:
<img src="myimage.png">
I am loading a local HTML file into a UIWebView in iOS using this code
NSString *urlAddress = [[NSBundle mainBundle] pathForResource:#"index" ofType:#"html"];
NSURL *url = [NSURL fileURLWithPath:urlAddress];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[myWebView loadRequest:requestObj];
The page works fine, and the image linked within the HTML loads fine. However, the JavaScript linked off of the page is not loading.
The HTML, Image and JavaScript are all located in the same folder. (Resources/Html in my Project)
How can I get the JavaScript to load?
The problem was that XCode was showing me a warning:
warning: no rule to process file
'$(PROJECT_DIR)/html/orientation.js'
of type sourcecode.javascript for
architecture i386
This answer contains the solution. Basically, I had to tell XCode to not try and build the JavaScript files, and manually drag them to the "Copy Bundle Resources" directory.
The following code works for loading an html file which has javascript files in the web view
Here web is web view object and index is the html page
Web.delegate = self;
[Web loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:#"index" ofType:#"html"]isDirectory:NO]]];
Is it possible to preload content of a local file with embedded images for a UIWebView?
This is how I'm loading the data inside the UIWebView:
NSString *urlString = [[NSBundle mainBundle] pathForResource:#"info" ofType:#"html"];
NSString *htmlContent = [NSString stringWithContentsOfFile:urlString encoding:NSUTF8StringEncoding error:nil];
[myWebView loadHTMLString:htmlContent baseURL:nil];
But the UIWebView still needs some time to display the content. Is there any way to put this content into the browser cache on app start?
If you create the browser object on app start and load the HTML string immediately, it should work fine to display the view later.
Another option would be to allocate it when necessary, but not actually show the view until it's done loading (wait for - (void)webViewDidFinishLoad:(UIWebView *)webView to be called on the web view's delegate before showing it).
Also, would it make more sense to call
[myWebView loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:urlString]]];
than using the loadHTMLString: method? That way, you don't have to load the HTML string into memory yourself and the web view can load it directly from disk.