关于NJKWebViewProgress的纯代码编写。

代码如下：

//

//  ViewController.m

//  NJKWebViewTest

//

#import "ViewController.h"

#import "NJKWebViewProgress.h"

#import "NJKWebViewProgressView.h"

@interface ViewController ()<NJKWebViewProgressDelegate,UIWebViewDelegate>

@property (nonatomic , strong) UIWebView * webView;

@property (nonatomic , strong) NJKWebViewProgressView * progressView;

@property (nonatomic , strong) NJKWebViewProgress * progressPoxy;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    

    //这一步很重要，必须先创建出来，否则你的进度条将不会动

    _webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height-100)];

    _webView.center = self.view.center;

    

    _progressPoxy = [[NJKWebViewProgress alloc]init];

    _webView.delegate = _progressPoxy;

    _progressPoxy.webViewProxyDelegate = self;

    _progressPoxy.progressDelegate = self;

    

    //示例网址

    //http://58.96.180.232:80/ftl/html5/index/10.html?1451553857312

    

    _progressView = [[NJKWebViewProgressView alloc]initWithFrame:CGRectMake(0, self.navigationController.navigationBar.frame.size.height-2, self.navigationController.navigationBar.frame.size.width, 2)];

    _progressView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;

    //初始化进度条进度

    [_progressView setProgress:0 animated:YES];

    

    [self loadWeb];

    

}

-(void)loadWeb{

    

    NSURLRequest * request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://58.96.180.232:80/ftl/html5/index/10.html?1451553857312"] cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData timeoutInterval:5];

    [_webView loadRequest:request];

    [self.view addSubview:_webView];

}

#pragma mark - NJKWebViewProgressDelegate

-(void)webViewProgress:(NJKWebViewProgress *)webViewProgress updateProgress:(float)progress

{

    [_progressView setProgress:progress animated:YES];

    self.title = [_webView stringByEvaluatingJavaScriptFromString:@"document.title"];

}

-(void)viewWillAppear:(BOOL)animated{

    [super viewWillAppear:animated];

    [self.navigationController.navigationBar addSubview:_progressView];

}

-(void)viewWillDisappear:(BOOL)animated{

    [super viewWillDisappear:animated];

    [_progressView removeFromSuperview];

}

@end