Question

我需要我的应用识别.PDF扩展程序，然后在Safari而不是UIWebView中打开它，但如果我调用http://google.com之类的域名，我希望它能够打开它在UIWebView。

请建议

Answer 1

您也可以检查MIME类型，以获得稍长的旅程：

@property (nonatomic, strong) NSString *mime;

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response 
{
   mime = [response MIMEType];
}

- (BOOL)isDisplayingPDF {
    NSString *extension = [[mime substringFromIndex:([mime length] - 3)] lowercaseString];

    return ([[[self.webView.request.URL pathExtension] lowercaseString] isEqualToString:@"pdf"] || [extension isEqualToString:@"pdf"]);
}

您应该使用以下打开URL文件（.pdf）：

NSURL *url = [NSURL URLWithString:@"http://www.stackoverflow.com/dd.pdf"];

if (![[UIApplication sharedApplication] openURL:url])

NSLog(@"%@%@",@"Failed to open url:",[url description]);

Answer 2

试试这个它将在safari中打开，而不使用webview

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
if (url != nil && [url isFileURL]) {
    if ([[url pathExtension] isEqualToString:@"pdf"]) {
        NSLog(@"URL:%@", [url absoluteString]);
    }
}
return YES;
}


- (void)viewDidLoad
{
[super viewDidLoad];

NSURL *url = [NSURL URLWithString:@"your pdf url"];

if (![[UIApplication sharedApplication] openURL:url])
    NSLog(@"%@%@",@" open url:",[url description]);
}

从UIWebView打开Safari中的URL文件（.pdf）

2 个答案: