在shouldStartLoadWithRequest方法中修改URL请求并在Webview中显示 [英] Modify URL request in shouldStartLoadWithRequest method and displaying in Webview

问题描述

我有一个webview和3个网址。

I have one webview and 3 url.

因此，当应用程序启动时，我在webview中显示URL1。

So when application starts i am showing URL1 in webview.

现在，当我选择webview的任何部分时，它将重定向到URL2。

Now when i select any portion of webview it will redirect to URL2.

但我只想从URL2获取一些数据而不想向用户显示它。

But only i want to fetch some data from URL2 and dont want to show it to user.

我可以通过使用shouldStartLoadWithRequest：方法返回NO。

Which i can able to do by using shouldStartLoadWithRequest: method with return NO.

但是现在我需要在我的Webview中显示从URL2收到的数据的URL 3.

but Now i need to show URL 3 with data received from URL2 in my Webview.

但它没有显示任何内容，我该怎么办？

But it is not showing anything ,how can i do it ?

为此我使用以下代码

-(void)viewDidLoad
{
//Normal showing of URL1 in webview

}

- (BOOL)webView:(UIWebView*)webViewRef shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType {
{
if(selectedDataExist){

//get data from URL2
//Make New URL3 string
[webView loadRequest: [NSURLRequest requestWithURL:[NSURL URLWithString:myNewUrlString]]];
return NO;
}
else
{
//by default URL1 comes 
return YES;
}

推荐答案

我这样做了：

我试图通过GET方法发送信息，所以我将所有请求的url的最后10个字符（在我的情况下）子字符串，如果它没有GET方法，它创建一个新的请求将GET方法附加到url并返回NO，下次调用此函数时它将具有GET方法，因此它将继续。

i was trying to send a info via GET method so i substring the last 10 characters (in my case) of any url requested, if it doesn't have the GET method, it make a new request appending the GET method to the url and return NO, next time this function get called it will have the GET method so it will continue.

 -(BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType {

NSString *urls = [request.URL absoluteString];
NSString *code = [urls substringFromIndex: [urls length] - 10];

if (![code isEqualToString:@"?iphone=si"]) {
    NSURL *nueva = [NSURL URLWithString:[NSString stringWithFormat:@"%@?iphone=si",urls]];
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:nueva];
    [self.mywebview loadRequest:requestObj];
    return NO;
}
return YES;
}

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