iOS-UIWebview设置超时、加载失败、重新加载等问题解决

iOS开发 UIWebView加载失败 我想重新加载怎么做，使用reload不顶用

解决办法：重新使用

loadRequest：

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设置超时

    NSURL *url=[NSURL URLWithString:@"http://www.baidu.com"];    NSURLRequest *request = [[NSURLRequest alloc] initWithURL:url                                                  cachePolicy:NSURLRequestReloadIgnoringLocalCacheData                                              timeoutInterval:2];    UIWebView* webView = [[UIWebView alloc]initWithFrame:self.view.bounds];    webView.delegate=self;    [webView loadRequest:request];    [self.view addSubview:webView];}

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超时额外提示或者其他自定义操作

- (void)viewDidLoad {    [super viewDidLoad];    UIWebView *webview = [[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];    [self.view addSubview:myWebview];    NSURL *url = [NSURL URLWithString:@"www.baidu.com"];    NSURLRequest *request =[NSURLRequest requestWithURL:url                                            cachePolicy:NSURLRequestReloadIgnoringLocalCacheData                                        timeoutInterval:0.5];    [webview loadRequest:request];    if (theConnection)    {        [theConnection cancel];        NSLog(@"safe release connection");    }    theConnection= [[NSURLConnection alloc]initWithRequest:request delegate:self startImmediately:YES];}-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{    if (theConnection) {        NSLog(@"safe release connection");    }    if ([response isKindOfClass:[NSHTTPURLResponse class]]){        NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse*)response;        if ((([httpResponse statusCode]/100) == 2)){            NSLog(@"connection ok");        }        else{            NSError *error = [NSError errorWithDomain:@"HTTP" code:[httpResponse statusCode] userInfo:nil];            if ([error code] == 404){                NSLog(@"404");            }        }    }}-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{    if (theConnection) {        NSLog(@"safe release connection");    }    if (error.code == 22) //The operation couldn’t be completed. Invalid argument        NSLog(@"22");    else if (error.code == -1001) //The request timed out.  webview code -999的时候会收到－1001，这里可以做一些超时时候所需要做的事情，一些提示什么的        NSLog(@"-1001");    else if (error.code == -1005) //The network connection was lost.        NSLog(@"-1005");    else if (error.code == -1009){ //The Internet connection appears to be offline        NSLog(@"-1009");    }}

相关网络加载失败提示封装

HCWProgressHUD *hud = [HCWProgressHUD showHUDAddedTo:self.view animated:YES tapContentBlock:^(HCWProgressHUDMode mode) {} clickButtonBlock:^(HCWProgressHUDMode mode) {}];hud.buttonCorlor = [UIColor blueColor];// 没有网络dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{    hud.mode = HCWProgressHUDModeNoInternet;    // 没有数据    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{        hud.mode = HCWProgressHUDModeNoData;        // 隐藏        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{            [HCWProgressHUD hideHUDForView:self.view animated:YES];        });    });});