UIWebView displaying blank screen when loading - ios

Question

My app has to be able to download a file and display it. The format could be any of the major format types. I have been doing this with a UIWebView but when iOS 8 rolled out it broke this feature. I am wondering if this an issue with iOS 8 or is there a work around that I can use?
Here is my code:
//To show how I create the file path
NSString *resourceDocPath = [[NSString alloc] initWithString:[[[[NSBundle mainBundle] resourcePath] stringByDeletingLastPathComponent] stringByAppendingPathComponent:#"Documents"]];
//Name is the file's name that I get from the web service I use.
NSString *filePath = [resourceDocPath stringByAppendingPathComponent:name];
- (void) showFile:(NSString *)path andFileName:(NSString *)name
{
dispatch_async(dispatch_get_main_queue(), ^{
self.webView = [[UIWebView alloc] initWithFrame:self.view.frame];
NSURL *targetURL = [NSURL fileURLWithPath:self.filePath];
NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
[self.webView loadRequest:request];
self.webView.delegate = self;
[self.view addSubview:self.webView];
});
}
Thank you in advance.

Answer 1

I ran into the same problem rendering a pdf document on iOS 8.
So far, I've noticed this only for pdfs. So i check and see if the file is a pdf or not.
This is what i'm doing as a workaround.
NSData *pdfData = [[NSData alloc] initWithContentsOfFile:fileLocation];
[self.webView loadData:pdfData MIMEType:#"application/pdf" textEncodingName:#"utf-8" baseURL:nil];

Answer 2

I found out what the issue was in my case and so I wanted to post the answer.
I was using a direct file path:
NSString *resourceDocPath = [[NSString alloc] initWithString:[[[[NSBundle mainBundle] resourcePath] stringByDeletingLastPathComponent] stringByAppendingPathComponent:#"Documents"]];
When I should have been using a relative path like so:
NSString *resourceDocPath;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
resourceDocPath = [paths objectAtIndex:0];
They changes the file structure for iOS 8 which is why my code wasn't working since I was looking in the wrong place. I hope this helps someone else.