iOS-UIWebview设置超时、加载失败、重新加载等问题解决

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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:

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];
});
});
});

 

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