A better solution to this problem is to create a Category for UIWebView for the method webView:runJavaScriptAlertPanelWithMessage:initiatedByFrame: So that you can handle the alert event in any way that you’d like. I did this because I don’t like the default behavior of UIWebView when it puts the filename of the source in the UIAlertView title. … Read more
[I presume your question is about replicating the action associated with add to home screen, rather than replicating the appearance of the button itself (which being pedantic is what you actually wrote).] As others have said this isn’t possible. What you could do is programatically launch Safari from within your app and give it the … Read more
There is no need to use Javascript in iOS 5.0 and up – you have direct, documented access to its scrollView: – (void)webViewDidFinishLoad:(UIWebView *)webView { CGFloat contentHeight = webView.scrollView.contentSize.height; // …. } To get the total height of the contents of the webView.
I experienced a very similar issue (i get my files from a server however) and saw your post and thought it was a dead end and then just by chance started to experiment on the device (iPad, in this instance) and it worked when i gave the baseURL as what i used to get it … Read more
Try adding [webView loadHTMLString: @”” baseURL: nil]; right before you release the webview. For a leak in 4.2.1 relating to displaying a PDF in a UIWebView this solves most of the leak problems for me.
You can add or modify a <meta name=”viewport” tag to achieve this. Apple documentation on the meta/viewport tag here: https://developer.apple.com/library/content/documentation/AppleApplications/Reference/SafariHTMLRef/Articles/MetaTags.html Here’s an example of adding the tag once the document is loaded: – (void) webViewDidFinishLoad:(UIWebView *)webView { NSString* js = @”var meta = document.createElement(‘meta’); ” \ “meta.setAttribute( ‘name’, ‘viewport’ ); ” \ “meta.setAttribute( ‘content’, ‘width … Read more
I found something that worked for me. The problem is that when uiwebview changes its orientation web contents are zoommed to fit with viewport. But zoomscale parameter of scrollview subview is not updated correctly (nor are updated minimumZoomScale nor maximumZoomScale Then we need to do it manually at willRotateToInterfaceOrientation: – (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration { CGFloat ratioAspect … Read more
Yes apple has disabled this feature (among others) in UIWebViews and kept it for Safari only. However you can recreate this yourself by extending this tutorial, http://www.icab.de/blog/2010/07/11/customize-the-contextual-menu-of-uiwebview/. Once you’ve finished this tutorial you’ll want to add a few extra’s so you can actually save images (which the tutorial doesn’t cover). I added an extra notification … Read more
I tested the code with PNG (“image/png”), JPG (“image/jpeg”) and GIF (“image/gif”), and it works as expected: [webView loadData:imageData MIMEType:imageMIMEType textEncodingName:nil baseURL:nil]; Now, what’s wrong with your app? the imageData is not a well-formed image data. Try opening the file with a web browser or an image editor to check it. the MIME type is … Read more
You can give the UIWebView a delegate and implement the -webView:shouldStartLoadWithRequest:navigationType: delegate method to return NO; (except on the initial load). That will prevent the user from viewing anything but that single page. To provide an example requested in the comments… Start with allowLoad=YES and then: – (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType { return allowLoad; } – … Read more