首先说下下载地址： NJKWebViewProgress地址：https://github.com/ninjinkun/NJKWebViewProgress
直接上代码：
#import "ViewController.h" #import "NJKWebViewProgressView.h" @implementation ViewController { UIWebView *_webView; NJKWebViewProgressView *_progressView; NJKWebViewProgress *_progressProxy; } - (void)viewDidLoad { [super viewDidLoad]; //设置webview _webView = [[UIWebView alloc]init]; _webView.frame=CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height); [self.view addSubview:_webView]; _webView.dataDetectorTypes = UIDataDetectorTypeNone;//关闭自动检测网页上的电话号码 _webView.scalesPageToFit = YES;//自动对页面进行缩放以适应屏幕 //设置进度条 _progressProxy = [[NJKWebViewProgress alloc] init]; _webView.delegate = _progressProxy; _progressProxy.webViewProxyDelegate = self; _progressProxy.progressDelegate = self; CGFloat progressBarHeight = 2.f; CGRect navigationBarBounds = self.navigationController.navigationBar.bounds; CGRect barFrame = CGRectMake(0, navigationBarBounds.size.height - progressBarHeight, navigationBarBounds.size.width, progressBarHeight); _progressView = [[NJKWebViewProgressView alloc] initWithFrame:barFrame]; _progressView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin; [self loadwebview]; } - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; [self.navigationController.navigationBar addSubview:_progressView]; } -(void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; // Remove progress view // because UINavigationBar is shared with other ViewControllers [_progressView removeFromSuperview]; } -(void)loadwebview { NSURLRequest *req = [[NSURLRequest alloc] initWithURL:[NSURL URLWithString:@"https://www.baidu.com/"]]; [_webView loadRequest:req]; } #pragma mark - NJKWebViewProgressDelegate -(void)webViewProgress:(NJKWebViewProgress *)webViewProgress updateProgress:(float)progress { [_progressView setProgress:progress animated:YES]; //self.title = [_webView stringByEvaluatingJavaScriptFromString:@"document.title"]; } @end