I got a problem with UIWebView. I want to render my own html code in UIWebView.
if I use the below code, it's working fine.
NSBundle *thisBundle = [NSBundle mainBundle];
NSString *path = [thisBundle pathForResource:#"foo" ofType:#"html"];
NSURL *baseURL = [NSURL fileURLWithPath:path];
[self.webView loadHTMLString:#"foo.html" baseURL:baseURL];
I want to render the html with below code. But it's not working. foo.html contains exactly the same content with the NSString* one. Any hints? Thanks in advance. =)
NSString* one = #"<html><head><title></title></head><body><img src=\"image.jpg\"/></body></html>";
[self.webView loadHTMLString:one baseURL:nil] ;
I use this code that works perfectly :
NSString* htmlContent = #"<html><head><title></title></head><body><img src='image.jpg' /></body></html>";
[self.webView loadHTMLString:htmlContent baseURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] bundlePath]]];
Bu sure that image.jpg is included into your project.
create JS file demo.js and add code
var hello = function(str){
return str;
};
add UIWebView => To embed JavaScript in a dummy html file and load that into the UIWebView
[self.webView loadHTMLString:#"<script src=\"demo.js\"></script>"
baseURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] resourcePath]]];
Here is the code to make JS call
NString *str=#"hi JavaScript";
NSString *function = [[NSString alloc] initWithFormat: #"hello(%#)", str];
NSString *result = [webView stringByEvaluatingJavaScriptFromString:function];
Now, there is one important safety tip to make this actually work: The UIWebView must actually be loaded a view. It doesn’t have to be visible, but in order for the WebKit engine to execute the JS, it must be on a view.
Related
I'm creating some code which I've sorted into a framework - purely because I want to reuse this code elsewhere (other osx apps - not iOS).
Inside my Resources folder I created a xib file. One level higher in my root I have the corresponding Controller file.
If my client app is using storyboards - how would I go about loading this view? Note I did manage to access properties on the mentioned controller so I did all the hook up etc as described in Apple docs and elsewhere.
Thanks in advance!
You have to put the resources in a *.bundle, not a framework.
Just create a new target that's a bundle.
Then load the nibs with:
NSString *resourceBundlePath = [[NSBundle mainBundle] pathForResource:#"myBundle" ofType:#"bundle"];
NSBundle *resourceBundle = [NSBundle bundleWithPath:resourceBundlePath];
// load View Controller from that
UIViewController *vc = [[MyViewController alloc] initWithNibName:#"MyViewController" bundle:resourceBundle];
Solution: Here is a sample to load xib to create a view in the framework:
Create a new bundle (eg: MyBundle.bundle) and put your all resources (such as: xib, images, audio files, etc) into the new bundle.
Load xib:
NSString *resourcePath = [[NSBundle mainBundle] resourcePath];
NSString* path = [resourcePath
stringByAppendingPathComponent:#"MyBundle.bundle"];
NSBundle *bundle = [NSBundle bundleWithPath:path];
if(bundle)
{
self.view = [[bundle loadNibNamed:#"MyXibNameWithoutSuffix" owner:nil options:nil] lastObject];
} else {
self.view = [[[NSBundle mainBundle]
loadNibNamed:#"MyXibNameWithoutSuffix" owner:nil options:nil] lastObject];
}
Load image:
UIImage* image = [UIImage imageNamed:#"MyBundle.bundle/MyImageName"];
if(nil == image) {
image = [UIImage imageNamed:#"MyImageName"];
}
If you're using cocopods, please make sure the s.resources has been
set in .podspec file.
s.resources = "MyBundle.bundle/**/*.{png,jpeg,jpg,storyboard,xib,xcassets,plist}"
In one of my views, I simply want to show a pdf file in a UIWebView.
My code of the header file:
#import <UIKit/UIKit.h>
#interface FCOMViewController : UIViewController
{IBOutlet UIWebView *fcomWebView;}
//flag to denote if this is first time the app is run
#property (nonatomic) BOOL firstRun;
#end
And here the method in the implementation file:
- (void)viewDidLoad {
//Show the procedures PDF
NSString *path = [[NSBundle mainBundle] pathForResource:#"b777normalprocedures" ofType:#"pdf"];
NSURL *url = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[fcomWebView loadRequest:request];
[fcomWebView setScalesPageToFit:YES];
The app starts fine, does not crash or anything. The referencing outlets are set, but it doesn't show the PDF. Console says:
DiskImageCache: Could not resolve the absolute path of the old
directory. failed to find PDF header: `%PDF' not found.
The pdf is in the project directory, I have double checked that it is written correctly.
What can I do here? Any help would be appreciated.
Try this if you are targeting iOS 8.0:
NSString *path = [[NSBundle mainBundle] pathForResource:#"b777normalprocedures" ofType:#"pdf"];
NSURL *targetURL = [NSURL fileURLWithPath:path];
NSData *pdfData = [[NSData alloc] initWithContentsOfURL:targetURL];
[_webView loadData:pdfData MIMEType:#"application/pdf" textEncodingName:#"utf-8" baseURL:nil];
For me the problem was with downloaded pdf files which had extensions that I presume was otherwise recognised by UIWebView (aspx,php etc.). When I renamed the downloaded pdf files so that they had a ".pdf" extension the error did not occur.
I have working project in which i display pdf file in UIWebView
While testing my application in iOS8beta5 with XCode5, it did not work
In log it display failed to find PDF header : '%PDF' not found
I create sample application with below code which also have same problem
CODE :
self.myWebView.delegate = self;
NSString *path = [[NSBundle mainBundle] pathForResource:#"201" ofType:#"pdf"];
NSURL *targetURL = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
[self.myWebView loadRequest:request];
I read release note, Apple wrote that
Quicklook framework may did not display PDF file in some application
but they did not mention any thing about UIWebView,
Reference
NOTE :
This problem was not came in iOS8beta4.
Same problem is also occur in XCode6 + iOS8beta5.
I also check with different PDF files but have same problem.
QUESTION :
1] Is there any one had done fix for the above problem ?
If yes, please provide me some sample code.
I found a workaround for viewing the PDF in WebView
// Create pdf path & url
NSString *path = [[NSBundle mainBundle] pathForResource:#"201" ofType:#"pdf"];
NSURL *targetURL = [NSURL fileURLWithPath:path];
// Load pdf in WebView
NSData *pdfData = [[NSData alloc] initWithContentsOfURL:targetURL];
[self.webView loadData:pdfData MIMEType:#"application/pdf" textEncodingName:#"utf-8" baseURL:nil];
I have just re-designed my iPhone app using Storyboard... questin is: how do I address the the UIWebView so I can load the html? (I am a newbie when it comes to Obj-C, having done my previous app in MonoTouch, so I'm kinda lost). :D
- (void)viewDidLoad {
NSString *urlAddress = #”http://www.stackoverflow.com”;
NSURL *url = [NSURL URLWithString:urlAddress];
NSURLRequest *req = [NSURLRequest requestWithURL:url];
[webView loadRequest:requestObj];
}
Apple Developer docs are really good resource. The usage of UIWebView is outlined here enter link description here
To load a network resource simply pass a NSURLRequest object to loadRequest.
[self.myWebView loadRequest:[NSURLRequest
requestWithURL:[NSURL URLWithString:#"http://www.apple.com/"]]];
You can also do this in viewDidLoad (a UIWebView is a subclass of UIView and inherits all its methods). For example, loading a local pdf resource.
- (void)viewDidLoad {
[super viewDidLoad];
NSString *thePath = [[NSBundle mainBundle] pathForResource:#"iPhone_User_Guide" ofType:#"pdf"];
if (thePath) {
NSData *pdfData = [NSData dataWithContentsOfFile:thePath];
[(UIWebView *)self.view loadData:pdfData MIMEType:#"application/pdf"
textEncodingName:#"utf-8" baseURL:nil];
}
}
To setup your UIWebView with a link, just use the following code.
var URLPath = "Insert email address here"
Then use...
loadAddressURL()
and finally...
func loadAddressURL(){
let requestURL = NSURL(string:URLPath)
let request = NSURLRequest(URL: requestURL!)
Webview.loadRequest(request)
}
I have a view controller that has a UIWebView object within it.
I would like to load and display a PDF from the internet within the UIWebView.
I have the code working to display the a PDF loaded from the resource bundle, but i am lost on having the PDF loaded from the internet.
I was thinking it would be as simple as changing the fileURLWithPath to point to the location on the internet... although the form displays, it does not show the contents. So I am assuming that I have the wrong URL in the string???
Does anyone have a code snippet to load and display a PDF from the internet within a UIWebView that they would be willing to share???
thanks
tony
I take it you are looking at iOS stuff, not Mac. On iOS, it should really be just as simple as
NSURL* url = [NSURL URLWithString:stringURL];
[aWebView loadRequest:[NSURLRequest requestWithURL:url]];
Use the following for xCode 5.
Interface section - myWebView is the outlet to the UIWebView in my storyboard.
#property (weak, nonatomic) IBOutlet UIWebView *myWebView;
#property NSURL *url;
The rest goes into viewDidLoad section of the ViewController class.
- (void)viewDidLoad
{
[super viewDidLoad];
_url = [[NSURL alloc] init];
_url = [NSURL URLWithString:#"http://deimos3.apple.com/WebObjects/Core.woa/FeedEnclosure/utah.edu.1668842900.01668842919.1681195338/enclosure.pdf"];
[_myWebView loadRequest:[NSURLRequest requestWithURL: _url]];
}
This worked for me but there maybe a more efficient way of doing this.
Here is how i implemented it....
visitNoteViewController *controller = [[visitNoteViewController alloc] initWithNibName:#"visitNoteView" bundle:nil];
NSArray *documentPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
controller.pdfUrl = [NSURL URLWithString:#"http://deimos3.apple.com/WebObjects/Core.woa/FeedEnclosure/utah.edu.1668842900.01668842919.1681195338/enclosure.pdf"];
[self presentModalViewController:controller animated:YES];
[controller release];
got it working.