iPhone 版 PhoneGap:加载外部 URL 时出现问题 [英] PhoneGap for iPhone: problem loading external URL

问题描述

我正在使用 PhoneGap 为 iPad 编写应用程序，我想在不触发 Safari 或使用像 ChildBrowser 这样的内部网络浏览器的情况下加载外部 URL.

I'm writing an application for iPad using PhoneGap and I would like to load an external URL without triggering Safari or using internal web browser like ChildBrowser.

我正在使用 PhoneGap iPad/iPhone 示例项目，并尝试了不同的方法.在 onBodyLoad() 函数中我添加了:

I'm using the PhoneGap iPad/iPhone sample project and I tried different approaches. In the onBodyLoad() function I added:

window.location.href('http://www.wordreference.com'); 

但此行使用新的 Safari 窗口打开链接.从那时起就无法在 PhoneGap 中返回

but this line opens the link using a new Safari window.From that point is not possible to come back in PhoneGap

之后，我尝试使用 AJAX 请求替换页面内容，使用 document.write

Afterwards, I tried with an AJAX request substituting the content of the page using document.write

function loadHTML(url, timeout) {
if (timeout == undefined)
    timeout = 10000;
var req = new XMLHttpRequest();
var timer = setTimeout(function() {
    try {
        req.abort();
    } catch(e) {}
    navigator.notification.loadingStop();
},timeout);
req.onreadystatechange = function() {
    if (req.readyState == 4) {
        if (req.status < 300) {
            clearTimeout(timer);

            var html = req.responseText;
            //just a debug print   
    alert(html);
    document.write(html);

        }
        navigator.notification.loadingStop();
        delete req;
    }       
};          
req.open('GET', url, true);
req.send();
}

现在，从 onBodyLoad() 内部调用:

Now, calling from inside onBodyLoad():

loadHTML('http://www.wordreference.com',10000); 

在PhoneGap Container中打开链接，没问题.重点是我想加载一个用Python编写的动态页面

Opens the link in the PhoneGap Container,which is fine. The point is that I want to load a dynamic page written in Python

loadHTML('http://www.mysite.com/cgi-bin/index.py',10000)

此时并没有调用Safari，而是显示PhoneGap容器中的黑页！！我想指出，如果我在 Safari 中输入该链接，则它可以正常工作(由于隐私问题，我无法报告它).

At this point Safari is not called but a black page in the PhoneGap container is displayed!! I want to point out that the link is perfectly working if I type it in Safari( I cannot report it for privacy issues).

这可能是与某种所需权限有关的问题吗???

Could be it a problem related to some kind of needed permission???

我发现一些与用于 BlackBerry 的 PhoneGap 类似的东西，建议的解决方案是使用

I found something similar relative to PhoneGap for BlackBerry and the proposed solution was to modify a config.xml file with

<access subdomains="true" uri="http://www.mysite.com/" />

我试图直接在我的 index.html 中添加这个标签，但它不起作用.

I tried to add this tag directly in my index.html but it doesn't work.

iPhone 有没有类似的方法??

Is there any similar approach for iPhone??

非常感谢

推荐答案

我想我已经找到了解决方案，

I think I've found the solution,

在PhoneGap Application Delegate .m文件{YourProject}AppDelegate.m中，修改方法:

in the PhoneGap Application Delegate .m file {YourProject}AppDelegate.m, modify the method:

- (BOOL)webView:(UIWebView *)theWebView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
return [super webView:theWebView shouldStartLoadWithRequest:request navigationType:navigationType];
}

与

- (BOOL)webView:(UIWebView *)theWebView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
 NSURL *url = [request URL];
if ([[url scheme] isEqualToString:@"http"] || [[url scheme] isEqualToString:@"https"]) {
    return YES;
}
else {
return [ super webView:theWebView shouldStartLoadWithRequest:request navigationType:navigationType ];
}
}

这将打开 PhoneGap 容器内的所有外部链接！！！

ps.您会在周围找到对这个 link 的引用，但我认为它不适用于使用 0.9 编写的应用程序.5 版本，因为默认情况下 Safari 会打开外部链接.

ps. Around you will find references to this link but I think it doesn't work for app written using the 0.9.5 version,since Safari gets opened for external links by default.

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