iOS 使用来自 UIWebVIew 的外部应用程序打开文档

Question

我有一个 UIWebView。单击包含文档的链接时，我想在外部应用程序(office、openoffice 等)中打开该文档，而不是在 UIWebView 中打开该文档。

我知道如何处理电子邮件:

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
if ([[[request URL] scheme] isEqual:@"mailto"]) {
    [[UIApplication sharedApplication] openURL:[request URL]];
    return NO;
}
return YES;

除了文档，还有什么办法可以做到这一点吗？ 谢谢!

编辑: 这就是我所做的:

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
    NSURL* possibleDocumentURL = [request mainDocumentURL];
    NSString* extension = [[possibleDocumentURL lastPathComponent] pathExtension];

    if ([[[request URL] scheme] isEqual:@"mailto"]) {
        [[UIApplication sharedApplication] openURL:[request URL]];
        return NO;

    }else if ([extension isEqualToString:@"pdf"] || [extension isEqualToString:@"docx"]){

        NSURLRequest *req = [[NSURLRequest alloc] initWithURL:possibleDocumentURL];
        [NSURLConnection sendAsynchronousRequest:req queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse
*resp, NSData *respData, NSError *error){ stringByAppendingString:names[names.count-1]];
        NSString *fileName = @"myFile";
        NSString * path = [NSTemporaryDirectory() stringByAppendingPathComponent:fileName];
        NSError *errorC = nil;
        BOOL success = [respData writeToFile:path
                                         options:NSDataWritingFileProtectionComplete
                                           error:&errorC];

        if (success) {
            self.documentController = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:path]];
             self.documentController.delegate = self;
             [self.documentController presentOptionsMenuFromRect:CGRectZero inView:self.view animated:YES];
         } else {
             NSLog(@"fail: %@", errorC.description);
         }
    }];

        return NO;
   }

   return YES; 
}

现在的问题是 UIDocumentInteractionController 只显示 Mail 和 Messages 应用程序。我需要用于打开 pdf、docx 等文件的应用程序。

有什么想法吗？谢谢!

Answer 1

UIDocumentInteractionController 将为您工作。

Apple docs

Great step by step tutorial