How do I display a local pdf file in UIWebView?

Question

I'm new to Objective-C and iOS development. I can't get a local pdf file to display in UIWebView. I am setting up an array to hold the file names, then display them in the UIWebView. Any help would be appreciated!

From MasterViewController.m: (set array of pdf file names)

[mCommands addObject:[[NSDictionary alloc]
                    initWithObjectsAndKeys:@"Break",@"name",@"cmd_break.pdf",@"url",nil]];
[mCommands addObject:[[NSDictionary alloc]
                    initWithObjectsAndKeys:@"Close",@"name",@"cmd_close.pdf",@"url",nil]];

From DetailViewController.m: (display pdf file in UIWebView)

NSString *filename = [self.detailItem objectForKey:@"name"];
NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:@"pdf"];
NSURL *detailURL = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:detailURL];
[self.detailWebView loadRequest:request];

I honestly can't believe how many people confuse Xcode, the IDE, with objective-c, the language. — Richard J. Ross III
– Richard J. Ross III, Commented Mar 4, 2012 at 14:13
Oh great one, perhaps you can reach down from the heights of the ivory tower you so obviously occupy and help out a poor ignorant beginner. — FLipxcode
– FLipxcode, Commented Mar 4, 2012 at 14:24
First, a couple of things. #1: Is your file Actually being copied to the application's bundle? In Xcode, go to Project->My Target->Build Phases->Copy Bundle Resources. If your PDF is not there, drag it from your project into that box. #2: Please Log 'path' before you load the WevView, It could be that the file name is wrong. — Richard J. Ross III
– Richard J. Ross III, Commented Mar 4, 2012 at 14:27

Community · Accepted Answer · 2017-05-23 11:55:53Z

2

Your code to load the pdf into the view semse right.

But the filepath is probably wrong. When you use:

[[NSBundle mainBundle] pathForResource:filename ofType:@"pdf"];

It only needs the filename, it will append the type string. So you will probably get a result which ends with cmd_break.pdf.pdf

Verify this with:

NSString *filename = [self.detailItem objectForKey:@"url"];
NSString *path = [[NSBundle mainBundle] pathForResource:filename ofType:@"pdf"];
NSLog(@"%@", path);

And yeah, as Richard J. Ross III pointed out. Your using the wrong key in your dictionary. The "name"-key will give you "Break" back while "url"-key will give you "cmd_break.pdf".

edited May 23, 2017 at 11:55

CommunityBot

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answered Mar 4, 2012 at 14:40

Nic

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3 Comments

Richard J. Ross III Over a year ago

Wait a minute, isn't the problem that he's loading the value for the 'name' key and not the 'url' key?

Nic Over a year ago

Correct. Missed that. Edited.

FLipxcode Over a year ago

Thanks to both of you...that was the issue (using "name" instead of "url"). I also changed the array contents to not include the file extension.

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