KDProject/KuDianProject/Login/controller/KDPWebViewVi...

//
//  KDPWebViewViewController.m
//  KuDianProject
//
//  Created by admin on 2019/7/8.
//  Copyright © 2019 KDP. All rights reserved.
//

#import "KDPWebViewViewController.h"
#import <WebKit/WebKit.h>
@interface KDPWebViewViewController ()<WKUIDelegate,WKNavigationDelegate>

@property (nonatomic, strong) WKWebView *webView;

@property (nonatomic, strong) UIProgressView *processView;

@property (nonatomic, strong) UIButton *backButton;

@end

@implementation KDPWebViewViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    [self setContentView];
    [self loadWebPage];
}

- (void)setContentView{
    self.navBar.backgroundColor = [UIColor whiteColor];
    self.navBar.navTitleLabel.textColor = [UIColor colorWithHex:0x333333];
//    self.backButton = [UIButton buttonWithType:UIButtonTypeSystem];
//    [self.backButton setImage:[UIImage imageNamed:@"return_black"] forState:UIControlStateNormal];
//    self.backButton.frame = CGRectMake(0, 0, 40, 40);
//    [self.backButton addTarget:self action:@selector(backAction:) forControlEvents:UIControlEventTouchUpInside];
//    [self.navBar addSubview:self.backButton];
    
    [self.navBar addleftReturnButton:self selector:@selector(backAction:)];
    
    WKWebViewConfiguration *config = [[WKWebViewConfiguration alloc] init];
    config.allowsInlineMediaPlayback = NO;
    self.webView = [[WKWebView alloc] initWithFrame:CGRectMake(0, KDNavBarHeight, SCREEN_WIDTH, SCREEN_HEIGHT-KDNavBarHeight) configuration:config];
    self.webView.backgroundColor = [UIColor colorWithRed:240.0/255 green:240.0/255 blue:240.0/255 alpha:1.0];
    self.webView.navigationDelegate = self;
    self.webView.UIDelegate = self;
    //使用kvo监听进度
    [self.webView addObserver:self forKeyPath:NSStringFromSelector(@selector(estimatedProgress)) options:0 context:nil];
    //手势触摸滑动
    self.webView.allowsBackForwardNavigationGestures = YES;
    //自适应
    [self.webView sizeToFit];
    [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:self.webUrl]]];
    [self.view addSubview:self.webView];
    
    self.processView = [[UIProgressView alloc] initWithFrame:CGRectMake(0, KDNavBarHeight, SCREEN_WIDTH, 2)];
    [self.processView setTrackTintColor:[UIColor colorWithRed:240.0/255 green:240.0/255 blue:240.0/255 alpha:1.0]];
    self.processView.progressTintColor = [UIColor baseColor];
    [self.view addSubview:self.processView];
    
}

- (void)loadWebPage{
    if (@available(iOS 9.0, *)) {
        NSArray * types=@[WKWebsiteDataTypeCookies,WKWebsiteDataTypeLocalStorage];
        
        NSSet *websiteDataTypes= [NSSet setWithArray:types];
        NSDate *dateFrom = [NSDate dateWithTimeIntervalSince1970:0];
        
        [[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:websiteDataTypes modifiedSince:dateFrom completionHandler:^{
            
        }];
    }
    //    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:self.url]];
    NSString *urlStr = [self.webUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
    NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlStr]
                                                              cachePolicy:NSURLRequestReloadIgnoringCacheData
                                                          timeoutInterval:15.0];
    [self.webView loadRequest:theRequest];
}

- (void)setWebUrl:(NSString *)webUrl{
    _webUrl = webUrl;
}

- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation{
    //开始加载的时候,让进度条显示
    self.processView.hidden = NO;
    self.processView.progress = 0;
    self.processView.alpha = 1.0;
    [UIView animateWithDuration:0.8 animations:^{
        self.processView.progress = 0.6;
        
    }];
}

- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler{
    NSURL *url = navigationAction.request.URL;
    UIApplication *app = [UIApplication sharedApplication];
    
    // 打开appstore
    if ([url.absoluteString containsString:@"https://itunes.apple.com/cn/app/"])
    {
        if ([app canOpenURL:url])
        {
            //设备系统为IOS 10.0或者以上的
            if (@available(iOS 10.0, *)) {
                [[UIApplication sharedApplication] openURL:url options:@{} completionHandler:nil];
            } else {
                [[UIApplication sharedApplication] openURL:url];
            }
            
            decisionHandler(WKNavigationActionPolicyCancel);
            return;
        }
    }
    decisionHandler(WKNavigationActionPolicyAllow);
}

- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation{
    self.navBar.navTitleLabel.text = webView.title;
}

-(void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    [UIApplication sharedApplication].statusBarStyle=UIStatusBarStyleDefault;
    self.navBar.navTitleLabel.textColor = [UIColor whiteColor];
}
-(void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [UIApplication sharedApplication].statusBarStyle=UIStatusBarStyleLightContent;
}

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context{
    if ([keyPath isEqualToString:NSStringFromSelector(@selector(estimatedProgress))] && object == self.webView ) {
        [self.processView setAlpha:1.0];
        
        [self.processView setProgress:self.webView.estimatedProgress ];
        if (self.webView.estimatedProgress >= 1.0) {
            [UIView animateWithDuration:0.7 animations:^{
                [self.processView setProgress:1.0 animated:YES];
                [self.processView setAlpha:0.0];
                
            }];
            
        }
    }else{
        [super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
    }
}

- (void)backAction:(UIButton *)sender{
    if (self.presentingViewController) {
        [self dismissViewControllerAnimated:YES completion:nil];
    } else{
        [self.navigationController popViewControllerAnimated:YES];
    }
}

//观察的移除
- (void)dealloc{
    [self.webView removeObserver:self forKeyPath:NSStringFromSelector(@selector(estimatedProgress))];
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

@end