在加载网页时给一个timer定时器,规定超时时间,然后再超时时间的方法中提示超时
如果没有超时,则在webview协议中的“加载完成”方法中 取消timer定时器
- (void)openWebView { if (timer) { [timer invalidate]; } timer = [NSTimer scheduledTimerWithTimeInterval:10.0 target:self selector:@selector(timerFunction) userInfo:nil repeats:NO]; if (!webViewFirst) { webViewFirst = [[UIWebView alloc] init]; webViewFirst.frame = CGRectMake(0, 0, ivWelcome.frame.size.width, ivWelcome.frame.size.height); webViewFirst.backgroundColor = [UIColor whiteColor]; webViewFirst.delegate = self; webViewFirst.hidden = YES; [webViewFirst loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[kGlobal getLoadingUrl]]]]; [ivWelcome addSubview:webViewFirst]; UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom]; btn.frame = CGRectMake(0, 0, ivWelcome.frame.size.width, ivWelcome.frame.size.height); btn.backgroundColor = [UIColor clearColor]; btn.enabled = NO; [btn addTarget:self action:@selector(initLoginView) forControlEvents:UIControlEventTouchUpInside]; [ivWelcome addSubview:btn]; btnSkip = btn; } else { webViewFirst.hidden = YES; [webViewFirst reload]; } } - (void)webViewDidFinishLoad:(UIWebView *)webView { if (timer) { [timer invalidate]; } btnSkip.enabled = YES; webViewFirst.hidden = NO; {//添加淡入淡出动画 CATransition *animation = [CATransition animation]; //animation.delegate = self; // 设定动画时间 animation.duration = 0.7; // 设定动画快慢(开始与结束时较慢) animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; animation.type = kCATransitionFade; [webViewFirst.layer addAnimation:animation forKey:@"animation"]; } } - (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error { [self timerFunction]; } - (void)timerFunction { if (timer) { [timer invalidate]; } UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"网络不给力,请重试" delegate:kAPPDELEGATE cancelButtonTitle:@"重试" otherButtonTitles:nil]; [alert show]; }
时间: 2024-10-27 07:44:57