Display local pdf file in UIWebView in iphone

问题

I am display local pdf file in UIWebView but it shows exception in path here is my code

     NSString*fileName=content_Source;
     NSString *path = [[NSBundle mainBundle] pathForResource:fileName ofType:@"pdf"];
     NSURL *url = [NSURL fileURLWithPath:path];
     NSURLRequest *request = [NSURLRequest requestWithURL:url];
    [webView setScalesPageToFit:YES];
    [webView loadRequest:request]

回答1:

first validate that string and the assign to URL like bellow..

   NSString *strURLPath = [self trimString: path];
   NSURL *url = [NSURL fileURLWithPath:strURLPath];

use my bellow method...

-(NSString*) trimString:(NSString *)theString {
    if (theString != [NSNull null])
        theString = [theString stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
    return theString;
}

回答2:

You must be using the file name extension while setting the file name. So make sure the extension will not be used in file name if its setting along with Type (like ofType:@"pdf").

Here's my code:

UIWebView *webView = [[UIWebView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
webView.backgroundColor = [UIColor redColor];
NSString*fileName= @"About_Downloads";
NSString *path = [[NSBundle mainBundle] pathForResource:fileName ofType:@"pdf"];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:path isDirectory:NO]];
[webView setScalesPageToFit:YES];
[webView loadRequest:request];
[self.view addSubview:webView];

There's a better way to show pdf's:

UIDocumentInteractionController *dc = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:path isDirectory:NO]];
dc.delegate = self; 
[dc presentPreviewAnimated:YES];

Make sure use the delegate along with that code to work it properly.

(UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller{
    return self;
}

回答3:

It is working fine with the given code problem was that in my file Name i was giving also the type like ali.pdf they type pdf so it get exception it worked fine now when i use filename like following

 NSString*fileName=@"ali";

Instead of

    NSString*fileName=@"ali.pdf";

回答4:

CGRect rect = [[UIScreen mainScreen] bounds];
    CGSize screenSize = rect.size;
    UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(0,0,screenSize.width,screenSize.height)];

    NSString *path = [[NSBundle mainBundle] pathForResource:@"pdf" ofType:@"pdf"];
    NSURL *targetURL = [NSURL fileURLWithPath:path];
    NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
    [webView loadRequest:request];

    [self.view addSubview:webView];

来源：https://stackoverflow.com/questions/16029404/display-local-pdf-file-in-uiwebview-in-iphone

标签

iphone

uiwebview