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

loadRequest：

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];

}

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];
});
});
});