//
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// WEBViewController.m
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// BuWanVideo2.0
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//
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// Created by apple on 16/9/18.
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// Copyright © 2016年 com.yeshi.buwansheque.ios. All rights reserved.
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//
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#import "WEBViewController.h"
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#import <WebKit/WebKit.h>
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@interface WEBViewController ()<WKNavigationDelegate>{
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UILabel *webtitle;//网页显示的标题
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}
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@property (strong, nonatomic) WKWebView *webView;
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@property (strong, nonatomic) UILabel *titleView;
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@property (strong, nonatomic) UIButton *backBt;
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@property (strong, nonatomic) UIButton *reloadBt;
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@end
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@implementation WEBViewController
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- (void)viewDidLoad{
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[super viewDidLoad];
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//做的假导航栏
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_titleView=[[UILabel alloc] initWithFrame:CGRectMake(0, 0, KScreenW, 64)];
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_titleView.backgroundColor=kGlobalMainColor;
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_titleView.userInteractionEnabled=YES;
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[self.view addSubview:_titleView];
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//网页视图
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_webView=[[WKWebView alloc] initWithFrame:CGRectMake(0, 64, KScreenW, KScreenH-64)];
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_webView.contentMode=UIViewContentModeScaleAspectFill;
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_webView.configuration.allowsInlineMediaPlayback=YES;
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[_webView setNavigationDelegate:self];
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[_webView setMultipleTouchEnabled:YES];
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[_webView setAutoresizesSubviews:YES];
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[_webView.scrollView setAlwaysBounceVertical:YES];
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// 这行代码可以是侧滑返回webView的上一级，而不是跟控制器（*指针对侧滑有效）
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[_webView setAllowsBackForwardNavigationGestures:true];
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[self.view addSubview:_webView];
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//添加返回按钮
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_backBt=[[UIButton alloc] initWithFrame:CGRectMake(8, 22, 32, 32)];
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[_backBt setImage:[UIImage imageNamed:@"详情页面返回"] forState:UIControlStateNormal];
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[_backBt addTarget:self action:@selector(backButtonPushed:) forControlEvents:UIControlEventTouchUpInside];
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[self.view addSubview:_backBt];
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//添加刷新按钮
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_reloadBt=[[UIButton alloc] initWithFrame:CGRectMake(KScreenW-40, 22, 32, 32)];
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[_reloadBt setImage:[UIImage imageNamed:@"网页刷新"] forState:UIControlStateNormal];
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[_reloadBt addTarget:self action:@selector(reloadButtonPushed:) forControlEvents:UIControlEventTouchUpInside];
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[self.view addSubview:_reloadBt];
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//监听标题
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[_webView addObserver:self forKeyPath:@"title" options:NSKeyValueObservingOptionNew context:NULL];
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[_webView addObserver:self forKeyPath:@"estimatedProgress" options:NSKeyValueObservingOptionNew context:NULL];
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[self loadwebViews];
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}
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- (void)viewWillAppear:(BOOL)animated{
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[super viewWillAppear:animated];
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//保持屏幕常亮
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[[UIApplication sharedApplication] setIdleTimerDisabled:YES];
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}
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-(void)viewWillDisappear:(BOOL)animated{
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[super viewWillDisappear:animated];
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//强制装换屏幕
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NSNumber *orientationUnknown = [NSNumber numberWithInt:UIInterfaceOrientationUnknown];
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[[UIDevice currentDevice] setValue:orientationUnknown forKey:@"orientation"];
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NSNumber *PortraitorientationUnknown = [NSNumber numberWithInt:UIInterfaceOrientationPortrait];
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[[UIDevice currentDevice] setValue:PortraitorientationUnknown forKey:@"orientation"];
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//取消屏幕常亮
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[[UIApplication sharedApplication] setIdleTimerDisabled:NO];
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//状态栏重现
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[[UIApplication sharedApplication] setStatusBarHidden:NO];
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}
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- (void)backButtonPushed:(id)sender{
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if ([_webView canGoBack]&&![_webView.backForwardList.backList[0].title isEqualToString:webtitle.text]) {
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[_webView goToBackForwardListItem:_webView.backForwardList.backList[0]];
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[SVProgressHUD dismiss];
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}else{
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[self dismissViewControllerAnimated:YES completion:^{
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[SVProgressHUD dismiss];
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}];
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}
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}
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- (void)reloadButtonPushed:(id)sender{
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[SVProgressHUD dismiss];
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[_webView reload];
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}
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-(void)loadwebViews{
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NSURLRequest *req = [[NSURLRequest alloc] initWithURL:[NSURL URLWithString:_url]];
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[_webView loadRequest:req];
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}
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#pragma mark -WKNavigationDelegate
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// 页面开始加载时调用
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- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation{
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}
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// 当内容开始返回时调用
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- (void)webView:(WKWebView *)webView didCommitNavigation:(WKNavigation *)navigation{
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}
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// 页面加载完成之后调用
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- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation{
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}
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// 页面加载失败时调用
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- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation{
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}
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-(BOOL)shouldAutorotate{
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return YES;
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}
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//支持的方向 因为界面A我们只需要支持竖屏
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- (UIInterfaceOrientationMask)supportedInterfaceOrientations{
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_titleView.frame=CGRectMake(0, 0, KScreenWp, 64);
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_webView.frame=CGRectMake(0, 64, KScreenWp, KScreenHp-64);
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_backBt.frame=CGRectMake(8, 22, 32, 32);
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_reloadBt.frame=CGRectMake(KScreenWp-40, 22, 32, 32);
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return _orMake;
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}
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- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
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if ([keyPath isEqualToString:@"title"]) {
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if (object == _webView) {
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NSString *title = _webView.title;
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if(webtitle==nil){
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webtitle=[[UILabel alloc] initWithFrame:CGRectMake(50, 22, KScreenW-100, 32)];
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[webtitle setFont:[UIFont systemFontOfSize:14]];
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[webtitle setTextColor:[UIColor whiteColor]];
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[webtitle setTextAlignment:NSTextAlignmentCenter];
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[_titleView addSubview:webtitle];
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}
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webtitle.text =title;
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} else {
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[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
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}
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}else if ([keyPath isEqualToString:@"estimatedProgress"]) {
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if (object == _webView) {
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double progress = _webView.estimatedProgress;
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if(progress!=1){
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[SVProgressHUD showProgress:progress status:@"加载中"];
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}else{
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[SVProgressHUD dismiss];
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}
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} else {
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[super observeValueForKeyPath:keyPath ofObject:object change:change context:context];
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}
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}
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}
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-(void)dealloc{
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[_webView removeObserver:self forKeyPath:@"estimatedProgress"];
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[_webView removeObserver:self forKeyPath:@"title"];
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}
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@end
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