以下为iOS应用程序编写的代码段(查找网页加载时间)仅适用于https网站。但是,当我尝试给http网站时,它显示网页加载错误。我应该改变哪部分代码?
self.setTextLabel.text = @"Loading...";
NSURL *urlValue = [NSURL URLWithString:_textView.text];
NSURLRequest *request= [NSURLRequest requestWithURL:urlValue];
NSDate *start=[NSDate date];
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
/*NSURLSessionDataTask *task =[[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data,NSURLResponse *response,NSError *error)
{*/
NSDate *end=[NSDate date];
if(response != nil)
{
double ellapsedSeconds= [end timeIntervalSinceDate:start];
self.setTextLabel.text = [NSString stringWithFormat:@"%f ", ellapsedSeconds];
}
else
{
self.setTextLabel.text = @"Web Page Loading error !";
}
答案 0 :(得分:1)
首先,您需要执行此操作:打开Info.plist,并添加以下行:
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
1)如果你正在使用网页浏览,那么
//让我们说这是您加载请求的位置,并且您已经使用委托设置了您的webview
-(void)loadRequest{
[webView loadRequest:yourRequest];
startDate=[NSDate date];
}
//这是UIWebView的委托回调
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
NSDate *endDate=[NSDate date];
double ellapsedSeconds= [endDate timeIntervalSinceDate:startDate];
}
2)没有webview:
NSDate *start=[NSDate date];
NSURLRequest *r= [[NSURLRequest alloc] initWithURL:url];
NSData *response= [NSURLConnection sendSynchronousRequest:r returningResponse:nil error:nil];
NSDate *end=[NSDate date];
double ellapsedSeconds= [start timeIntervalSinceDate:end];