在 Safari 中打开生成的 html 文件 [英] Open Generated html file in Safari

问题描述

有什么方法可以在 Safari 中打开应用程序文档目录中保存的 .html 文件.我有一个 Template.html 文件，我会根据用户的选择更改该文件并将其保存到 temp.html 文件中，如何在 safari 中打开它?

Is there any way i can open a saved .html file in Documents directory of the application, in Safari. I have a Template.html file that i change depending on user choices and saving it to a temp.html file, how to open it in safari?

推荐答案

很遗憾，由于沙盒限制，您无法通过 [[UIApplication sharedApplication] openURL:] 在 iOS 的 Safari-App 中打开 File-URL.

Unfortunately you can't open File-URLs in iOS' Safari-App via [[UIApplication sharedApplication] openURL:] due to sandbox restrictments.

您有两个选择:

a) 将该文件上传到服务器，然后使用 [[UIApplication sharedApplication] openURL:@"http://..."] 在 Safari-App 中打开它；

a) Upload that file to a server and then open it in the Safari-App with [[UIApplication sharedApplication] openURL:@"http://..."];

b) 在您的应用中嵌入一个 Safari-WebView 来显示 html 文件，如下所示:

b) Embed a Safari-WebView in your app which displays the html-file, like so:

UIWebView *webView = [[UIWebView alloc] initWithFrame:...];
[self.view addSubView:webView];
NSURL *fileURL = [NSURL fileURLWithPath:...];
NSURLRequest *request = [NSURLRequest requestWithURL:fileURL];
[webView loadRequest:request];

self 在这里是一个 UIViewController.

self is a UIViewController here.

编辑

要添加具有适当逻辑的共享按钮，您可以将包含 UIWebView 的 ViewController 放入 UINavigationController 中，并将 UIBarButtonSystemItemAction 类型的 UIBarButtonItem 添加到它的 NavigationBar.如果 BarButtonItem 被点击，您会显示一个 a UIActivityViewController，像这样:

To add a Share-Button with proper logic, you can put the ViewController, that contains the UIWebView, inside a UINavigationController and add a UIBarButtonItem of type UIBarButtonSystemItemAction to it's NavigationBar. If the BarButtonItem gets tapped, you show a a UIActivityViewController, like so:

- (void)viewDidLoad {
    [super viewDidLoad];

    UIBarButtonItem *shareButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(shareButtonTapped:)];
    self.navigationItem.rightBarButtonItem = shareButton;
}

- (void)shareButtonTapped:(id)sender {
    UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:... applicationActivities:nil];
    [self.navigationController presentViewController:activityViewController animated:YES completion:nil];
}

有关使用 UIActivityViewController 的更多信息，请参阅 NSHipster

For more Infos on using UIActivityViewController, see NSHipster

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