iOS 网页进度条 NJKWebViewProgress

NJKWebViewProgress

NJKWebViewProgress

UIWebViewDelegate

NJKWebViewProgressDelegate

UIWebView *webView;
NJKWebViewProgressView *_progressView;
NJKWebViewProgress *_progressProxy;

webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.width, [[UIScreen mainScreen] bounds].size.height-62]; //初始化宽高
[self.view addSubview: webView];
[webView setScalesPageToFit:YES]; //自适应

_progressProxy = [[NJKWebViewProgress alloc] init];
webView.delegate = _progressProxy;
_progressProxy.webViewProxyDelegate = self;
_progressProxy.progressDelegate = self;

- (void)webViewProgress:(NJKWebViewProgress *)webViewProgress updateProgress:(float)progress {
[_progressView setProgress:progress animated:YES];
}

progressProxy.progressBlock = ^(float progress) {
[progressView setProgress:progress animated:NO];
};

- (void)webViewDidFinishLoad:(UIWebView *)webView;

- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error;

// 页面加载完成和失败的时候关闭进度条
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];

progress

-(void)webViewProgress:(NJKWebViewProgress *)webViewProgress updateProgress:(float)progress
{
if (progress == NJKInteractiveProgressValue) {
// The web view has finished parsing the document,
// but is still loading sub-resources
}
}

// 给定的几个常量如下：
const float NJKInitialProgressValue = 0.1f;
const float NJKInteractiveProgressValue = 0.5f;
const float NJKFinalProgressValue = 0.9f;

- (void)getUrl {
NSString *url  = [[NSString alloc]init];
url = @"https://www.baidu.com/";
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES]; //状态栏左边显示网络活动标志
[self loadData:url]; //加载数据
}

- (void)loadData:(NSString *)url {
NSURLRequest *request =[NSURLRequest requestWithURL:[NSURL URLWithString:url]];
[webView loadRequest:request];
}

- (void)removeCookies {
NSHTTPCookieStorage *cookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];
NSArray *pcookies = [cookies cookiesForURL:[NSURL URLWithString:preUrl]];
for (NSHTTPCookie *cookie in pcookies) {
[cookies deleteCookie:cookie];
}
}