iosuu/shiku_im/shiku_im/controller/myOA/YRWebVC.m

//
//  YRWebVC.m
//  UU_Ent
//
//  Created by liujl on 2019/4/29.
//  Copyright © 2019 UAS. All rights reserved.
//

#import "YRWebVC.h"
#import "AppDelegate.h"
#import "UIDevice+extension.h"
#import <WebKit/WebKit.h>
#import <JavaScriptCore/JavaScriptCore.h>


@interface YRWebVC ()<WKUIDelegate,WKNavigationDelegate,WKScriptMessageHandler,UINavigationControllerDelegate>

@property(strong,nonatomic)UIProgressView *progress;

@property(strong,nonatomic)WKWebView *webView;

@end

@implementation YRWebVC

- (void)viewDidLoad {
    [super viewDidLoad];
    
}


-(void)createUI{
    
    //创建配置对象
    WKWebViewConfiguration *webConfig = [[WKWebViewConfiguration alloc]init];
    
    //为配置对象设置偏好设置
    WKPreferences *preferences = [[WKPreferences alloc]init];
    webConfig.preferences = preferences;
    
    //允许js和native交互
    preferences.javaScriptEnabled = YES;
    
    WKUserContentController *userContent = [[WKUserContentController alloc]init];
    
    [userContent addScriptMessageHandler:self name:@"event"];
    
    //监听相应的事件
    webConfig.userContentController = userContent;
    
    self.webView = [[WKWebView alloc]initWithFrame:CGRectMake(0, 64, self.view.frame.size.width, self.view.frame.size.height) configuration:webConfig];
    
    [self.view addSubview:self.webView];
    
    [self.webView mas_makeConstraints:^(MASConstraintMaker *make) {
       
        make.edges.equalTo(self.view);
        
    }];
    
    self.webView.navigationDelegate = self;
    
    
    NSURL *url = [NSURL URLWithString:self.url];
    
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    
    [self.webView loadRequest:request];
    
    self.progress = [UIProgressView new];
    
    self.progress.trackTintColor = self.view.backgroundColor;
    
    self.progress.progressTintColor = [UIColor orangeColor];
    
    [self.view addSubview:self.progress];
    
    [self.progress mas_makeConstraints:^(MASConstraintMaker *make) {
        
        make.top.left.right.equalTo(self.view);
        make.height.mas_equalTo(2);
        
    }];
    
    
    
    [self.webView addObserver:self forKeyPath:@"estimatedProgress" options:NSKeyValueObservingOptionNew context:nil];
    
    
}

-(void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation{
    
    [self.webView evaluateJavaScript:@"document.title" completionHandler:^(NSString * _Nullable title , NSError * _Nullable error) {
        
        self.title = title;
        
    }];
    
    
}
//接受js发送的消息
-(void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message{
    
    NSString *name = message.name;
    
    if ([name isEqualToString:@"event"]) {
        
        // 打开相册
        if ([message.body isEqualToString:@"ChartInterfaceOrientationMaskPortrait"]) {//横屏
           
            [self chartInterfaceOrientationMaskLandscapeRight];
            
        }else {//竖屏
            
            [self chartInterfaceOrientationMaskPortrait];
            
        }
        
    
    }
        
    
    
}
//横屏
-(void)chartInterfaceOrientationMaskLandscapeRight{
    
    AppDelegate * appDelegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
    //允许转成横屏
    appDelegate.allowRotation = YES;
    //调用横屏代码
    [UIDevice switchNewOrientation:UIInterfaceOrientationLandscapeRight];
    
    
    [self.navigationController setNavigationBarHidden:YES animated:YES];
    
}
//竖屏
-(void)chartInterfaceOrientationMaskPortrait{
    
    AppDelegate * appDelegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
    //允许转成横屏
    appDelegate.allowRotation = NO;
    //调用横屏代码
    [UIDevice switchNewOrientation:UIInterfaceOrientationPortrait];
    
    [self.navigationController setNavigationBarHidden:NO animated:YES];
    
}

-(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context{
    
    if ([keyPath isEqualToString:@"estimatedProgress"]) {
        
        self.progress.progress = self.webView.estimatedProgress;
        if (self.webView.estimatedProgress >= 1.0f) {
            [UIView animateWithDuration:0.5f animations:^{
                self.progress.alpha = 0.0f;
                self.progress.progress = 0.0f;
            }];
        }else{
            
            self.progress.alpha = 1.0;
            
        }
        
    }
    
}

-(void)viewDidDisappear:(BOOL)animated{
    
    [super viewDidDisappear:animated];
    
    if (self.backBlock) {
        
        self.backBlock();
        
    }
    
    
    
}

-(void)removeAllMsgHandler{
    
    [self.webView.configuration.userContentController removeScriptMessageHandlerForName:@"event"];
    
    
}

-(void)dealloc{
    
    [self.webView removeObserver:self forKeyPath:@"estimatedProgress"];
    
}

@end