标注：此框架仅适合UIWebView 对iOS8后新出的WKWebView不适用，当然，你可以尝试修改框架里的几个代理方法。
导入头文件
#import "NJKWebViewProgressView.h"
#import "NJKWebViewProgress.h"
@implementation XFHelpCenterViewController
{
NJKWebViewProgressView *_progressView;
NJKWebViewProgress *_progressProxy;
}
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
[self.navigationController.navigationBar addSubview:_progressView];
}
-(void)viewWillDisappear:(BOOL)animated{
[super viewWillDisappear:animated];
[_progressView removeFromSuperview];
}
初始化
-(void)initViews{
XFUserModel* userModel = [NSKeyedUnarchiver unarchiveObjectWithFile:[NSString userDataPathWithPath:@"userIfor.data"]];
LGFLog(@"%@",userModel.help);
NSURL *URL = [NSURL URLWithString:userModel.help];
_webView = [[UIWebView alloc] initWithFrame:self.view.bounds];
[_webView loadRequest:[NSURLRequest requestWithURL:URL]];
[self.view addSubview:_webView];
}
-(void)setProgress{
_progressProxy = [[NJKWebViewProgress alloc] init];
self.webView.delegate = _progressProxy;
_progressProxy.webViewProxyDelegate = self;
_progressProxy.progressDelegate = self;
CGFloat progressBarHeight = 1.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;
}
代理方法
#pragma mark - NJKWebViewProgressDelegate
-(void)webViewProgress:(NJKWebViewProgress *)webViewProgress updateProgress:(float)progress{
[_progressView setProgress:progress animated:YES];
}