I want to read pdf file in iphone/ipad and i want to give animation(turn page) effect each page of pdf.
For just regular viewing u can use UIWebView. Once you have created this object assign it an IBOutlet and do something like this:
[mywebView loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithString:[[NSBundle mainBundle] pathForResources:#"myPDF" ofType:#"pdf"]]]];
To embed page flip features you can Subclass UIWebView and and start playing around.
Related
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 am using UIWebView to display textual content in my app (I store the content in local HTML files that I pack with the app). All together, I have three web views whose content I change dynamically based on user feedback.
Although some might argue that this is not the most accepted way, I find UIWebView very convenient to display formatted text, and modify that text using HTML if necessary. While this works 99% of the time, on occasion, I experience problems that generally fall into one of these categories:
Sometimes, the web view content loads slow and is late a second or so.
The content loads but is not showing. However, as long as, I touch the view (try to scroll or something) the content pops in.
A few times I received memory warnings (usually not long after the app's initial loading) that in no way affected the performance of my app. It logged the memory warning but the app worked like nothing happened.
This is the method I use to load content to my web views:
- (void)loadSimpleDocument:(NSString*)documentName inView:(UIWebView*)webView
{
NSString *path = [[NSBundle mainBundle] pathForResource:documentName ofType:#"html"];
NSURL *url = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webView loadRequest:request];
}
Aside from this, the shouldStartLoadWithRequest delegate method is also implemented, always returning a YES.
My question is: Is there a way to improve the reliability/performance of my web views (in particular loading)? Is there something I have overlooked, did wrong, or do not know about?
Some additional info:
I am on iOS6 SDK, use ARC, and do everything programmatically (do not use IB or storyboard).
You have 2 options to check what's going on:
Implement webViewDidStartLoad & webViewDidFinishLoad delegate methods to check why the content isn't showing (may be the content isn't loaded yet).
read the html content to an NSString then use loadHTMLString:baseURL instead of using loadRequest and check if it loads faster.
Hope this could help.
This is very strange to me...
I have a simple WebView that loads and interacts with the user exactly like safari mobile (iPhone). Now when you visit m.youtube.com in safari, the url changes when you click on a link to something like this...
http://m.youtube.com/watch?gl=US&hl=en&client=mv-google&v=HX6SyoZ5kw8
The problem with this is I don't think that url is being used in my webview... What do I mean? The following code is used to load a url every time the user try's to click on a link, and it works, but I have a problem with Youtube...
- (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType {
NSURL *url = request.URL;
NSString *urlString = url.absoluteString;
NSLog(#"%#",urlString);
VideoURLTextBox.text = urlString;
return YES;
}
When I first start up the webview it loads m.youtube.com and NSLogs() it into my console, but when I decide to click on a video it fails to NSLog() therefore I don't think a new url is being loaded, but when you load m.youtube.com in safari and click on a video you load a url like above, so why does this not NSLog() in my iPhone application?
What your probably seeing is that the youtube video is running javascript to play the video, you'd have to intercept the javascript callbacks to see that. Here's a link to the youtube video player api, detailing the callbacks, https://developers.google.com/youtube/js_api_reference#SubscribingEvents
If you just want to embed a youtube video in an iOS application then use this.
Using the mobile YouTube site isn't great, I had lots of problems with it in the past and ended up making a UIWebView category. I came across your question and decided to throw it on github :-)
https://github.com/enigmaticflare/UIWebView-YouTube--iOS-Category--ARC-compliant-code
UIWebView+YouTube iOS category to simplify loading youtube videos.
Instructions
1) Add these files to your project
UIWebView+YouTube.h
UIWebView+YouTube.m
2) Initiate UIWebView for example
#property (strong, nonatomic) UIWebView *webView;
#synthesize webView = _webView
_webView = [[UIWebView alloc] initWithFrame:CGRectMake(0,0,212,172];
//set the X,Y origin of CGRect to where you want the webView to appear.
_webView.delegate = self;
[_webView loadYouTubeVideoID:#"gR8dO7Cln6M"];
[self.view addSubView:_webView];
Good luck, hope this is what your looking for :)
Adam
m.youtube.com is one giant java web app, delegate methods won't get called, presumably because any loading is written directly to the DOM in the UIWebView. Ran into this problem at work, not sure of the fix but there may be a way to inject the source with a JS click handler.
i want to add a facebook like button in my app. in developer.facebook.com i couldn't fine anything about that. is it possible to use iframe created by facebook like button in UIWebView? it think if its possible then i can add a UIWebView in my app which use that iframe. thanx. please write some example code.
Yes it is possible, I am using iFrame to load youtube Video inside the app.
Following simple steps will guide you to achieve it.
Step 1 : Create a UIWebView in xib
Step 2 : Connect it to your ViewController's .h file. (I am referring it as _wevView in my project).
Step 3 : Create a method embedYouTube in your ViewController's .m file.
-(void)embedYouTube {
// Read create a NSString object with iframe
NSString *embedHTML = #"<iframe width=\"300\" height=\"250\" src=\"http://www.youtube.com/embed/rOPI5LDo7mg\" frameborder=\"0\" allowfullscreen></iframe>";
// Initialize the html data to webview
[_webView loadHTMLString:embedHTML baseURL:nil];
// Add webview to your main view
[self.view addSubview:_webView];
}
Step 4: Add the webview to your main view by by making a call to the method embedYouTube inside viewDidLoad
[self embedYouTube];
Step 5: Compile and run the app. You should be able to view the YouTube player embedded in the page.
Yes that is possible you can use the iframe in webview. You need to load the webview with the HTML string. You can also find the related code of HTML for iframe if you search over the net. Moreover you can also use javascript, in webview using the method stringByEvaluatingJavaScript: of UIWebview.
For a current project I am embedding a mobile site into an iOS app. I've taken use of the goback() and goforward() functions, with UIWebView. But how would I make a custom function that onClick (or onTouch which ever is the correct term) Sends the UIWebView back to the page initially loaded? Any Help would be much appreciated as I have bene unable to find anything on the web thus far.
Add something like to the implementation file:
- (IBAction)loadPage:(id)sender;
{
NSURL *url = [NSURL URLWithString:#"http://www.stackoverflow.com/"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webView loadRequest:request];
}
And add this to the header file (each line at the appropriate position):
- (IBAction)loadPage:(id)sender;
IBOutlet UIWebView *webView;
Then bind the button to loadPage within interface builder,
and bind webView to the UIWebView.
Response to comment:
I created this sample project, hopefully it helps:
- http://dd5.org/static/iPhone_Browser_Sample.zip
Binding the button:
Right-click and drag to the class where you added the code above.
Release the button. Now a little dark-gray panel should appear.
Then click on the loadPage: entry within that panel.
If the code was added correctly, the entry should show up there.