修改项说明：

Class/Announcement/AnnountcementDetailViewController.m

@@ -152,7 +152,7 @@
     [tableView deselectRowAtIndexPath:indexPath animated:YES];
     CustomWKWebViewController *wkWebView = [[CustomWKWebViewController alloc]init];
     TOAttachmentEntity *attachment = self.afficheResult.attachmentUrls[indexPath.row-1];
-    wkWebView.pdfURLString = attachment.fileUrl;
+    wkWebView.urlString = attachment.fileUrl;
     [self presentViewController:wkWebView animated:YES completion:nil];
 }
 

Class/LearningCenter/OnlineLearning/OnlineLearningDetailViewController.m

@@ -58,7 +58,7 @@
 {
     //播放窗口
     VideoHelperViewController *videoWindow = [[[self class] getLearningCenterStoryboardClass] instantiateViewControllerWithIdentifier:@"VideoHelperViewController"];
-    videoWindow.videoUrl = @"http://mpvideo-test.b0.upaiyun.com/5813998fb092e5771.mp4";
+    videoWindow.learningItemUrl = @"http://mpvideo-test.b0.upaiyun.com/5813998fb092e5771.mp4";
     videoWindow.view.frame = CGRectMake(0, NavigationHeight, ScreenWidth*2/3, ScreenHeight/2);
     [self addChildViewController:videoWindow];
     [self.view addSubview:videoWindow.view];
@@ -104,6 +104,7 @@
     page.rows = 9999;
     studyListModel.page = page;
     [self CreateMBProgressHUDLoding];
+    NSLog(@"%@",[studyListModel toDictionary]);
     [[NetworkRequestClassManager Manager] NetworkRequestWithURL:SERVERREQUESTURL(STUDYLIST) WithCallClass:weakSelf WithRequestType:ZERO WithParameter:studyListModel WithReturnValueBlock:^(id returnValue) {
         
         NSLog(@"%@",[returnValue JSONString]);

Class/LearningCenter/OnlineLearning/VideoHelperViewController.h

@@ -56,7 +56,7 @@
 /**
  播放路径
  */
-@property (nonatomic,copy) NSString *videoUrl;
+@property (nonatomic,copy) NSString *learningItemUrl;
 
 /**
  放大缩小        boolValue(true 全屏)

Class/LearningCenter/OnlineLearning/VideoHelperViewController.m

@@ -10,7 +10,7 @@
 #import "VIMediaCache.h"
 
 
-@interface VideoHelperViewController ()
+@interface VideoHelperViewController ()<UIDocumentInteractionControllerDelegate>
 
 @property (nonatomic,strong) AVPlayer *customPlayer;
 @property (nonatomic,strong) AVPlayerItem *playerItem;
@@ -43,13 +43,26 @@
     [self.view addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideOrShowNavigationBarAndToolBar)]];
 }
 
+#pragma mark -
+- (void)judgeVideoOrPPT
+{
+    NSURL *movieURL = [NSURL URLWithString:self.learningItemUrl];
+    NSDictionary *opts = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:NO]
+                                                     forKey:AVURLAssetPreferPreciseDurationAndTimingKey];
+    AVURLAsset *urlAsset = [AVURLAsset URLAssetWithURL:movieURL options:opts];  // 初始化视频媒体文件
+    NSInteger  second = 0;
+    second = urlAsset.duration.value / urlAsset.duration.timescale; // 获取视频总时长,单位秒
+    //NSLog(@"movie duration : %d", second);
+    NSLog(@"%ld",second);
+}
+
 #pragma mark - SetUp AVPlayer
 - (void)setUpAVPlayer
 {
     VIResourceLoaderManager *resourceLoaderManager = [VIResourceLoaderManager new];
     self.resourceLoaderManager = resourceLoaderManager;
-    self.playerItem = [resourceLoaderManager playerItemWithURL:[NSURL URLWithString:self.videoUrl]];
-    VICacheConfiguration *configuration = [VICacheManager cacheConfigurationForURL:[NSURL URLWithString:self.videoUrl]];
+    self.playerItem = [resourceLoaderManager playerItemWithURL:[NSURL URLWithString:self.learningItemUrl]];
+    VICacheConfiguration *configuration = [VICacheManager cacheConfigurationForURL:[NSURL URLWithString:self.learningItemUrl]];
     if (configuration.progress >= 1.0) {
         NSLog(@"缓存完成");
     }

Class/LuckyDrawDetailsViewController.m

@@ -225,7 +225,7 @@
     CustomWKWebViewController *wkWebView = [[CustomWKWebViewController alloc]init];
     NSString *server = [NSString stringWithFormat:SERVERREQUESTURL(DRAW),lotteryId,drawid,orderNumber];
     NSString *newServer = [server stringByReplacingOccurrencesOfString:@"/app" withString:@""];
-    wkWebView.pdfURLString = newServer;
+    wkWebView.urlString = newServer;
     [wkWebView setLuckyDrawFinishBlock:^(NSDictionary *result) {
         complete(result);
     }];

Class/OrderdetailsViewController.m

@@ -796,7 +796,7 @@ NSString *const PROMOTIONALSTRING = @"促销信息";
     CustomWKWebViewController *wkWebView = [[CustomWKWebViewController alloc]init];
     NSString *server = [NSString stringWithFormat:SERVERREQUESTURL(DRAW),lotteryId,@"",orderNumber];
      NSString *newServer = [server stringByReplacingOccurrencesOfString:@"/app" withString:@""];
-    wkWebView.pdfURLString = newServer;
+    wkWebView.urlString = newServer;
     [wkWebView setLuckyDrawFinishBlock:^(NSDictionary *result) {
         complete(result);
     }];
@@ -1032,7 +1032,7 @@ NSString *const PROMOTIONALSTRING = @"促销信息";
         NSString *server = [NSString stringWithFormat:SERVERREQUESTURL(ORDERDETAILSURL),[Shoppersmanager manager].Shoppers.employee.departid,self.orderCode];
         NSString *newServer = [server stringByReplacingOccurrencesOfString:@"/app" withString:@""];
         CustomWKWebViewController *pdfvc = [[CustomWKWebViewController alloc]init];
-        pdfvc.pdfURLString = newServer;
+        pdfvc.urlString = newServer;
         [weakSelf presentViewController:pdfvc animated:YES completion:nil];
         
     }else if ([button.currentTitle isEqualToString:@"撤销订单"])

Tools/CustomWKWebViewController.h

@@ -16,7 +16,7 @@
 /**
  *  PDF文件URL
  */
-@property (nonatomic,copy) NSString *pdfURLString;
+@property (nonatomic,copy) NSString *urlString;
 
 /**
  *  抽奖完成

Tools/CustomWKWebViewController.m

@@ -8,12 +8,22 @@
 
 #import "CustomWKWebViewController.h"
 #import <WebKit/WebKit.h>
-@interface CustomWKWebViewController ()<WKNavigationDelegate,WKScriptMessageHandler>
+@interface CustomWKWebViewController ()<WKNavigationDelegate,WKScriptMessageHandler,UIScrollViewDelegate>
 
 @property (nonatomic,strong) WKWebView *webView;
 @property (nonatomic,strong) WKWebViewConfiguration *config;
 @property (nonatomic,strong) UIButton *dismissButton;
 
+/**
+ PPT倒计时
+ */
+@property (nonatomic,strong) UILabel *countdownLabel;
+
+/**
+ PPT定时器
+ */
+@property (nonatomic,strong) NSTimer *timer;
+
 @end
 
 @implementation CustomWKWebViewController
@@ -38,25 +48,99 @@
     return _config;
 }
 
+- (WKWebView *)webView
+{
+    if (!_webView) {
+        _webView = [[WKWebView alloc] initWithFrame:self.view.bounds configuration:self.config];
+        _webView.navigationDelegate = self;
+        [self.view addSubview:_webView];
+    }
+    return _webView;
+}
+
+- (UILabel *)countdownLabel
+{
+    if (!_countdownLabel) {
+        _countdownLabel = [[UILabel alloc] initWithFrame:CGRectMake(ScreenWidth-150, 50, 100, 30)];
+        _countdownLabel.backgroundColor = kMainBlueColor;
+        _countdownLabel.textAlignment = NSTextAlignmentCenter;
+        _countdownLabel.layer.masksToBounds = YES;
+        _countdownLabel.layer.cornerRadius = 3;
+        _countdownLabel.textColor = [UIColor whiteColor];
+        [self.view addSubview:_countdownLabel];
+    }
+    return _countdownLabel;
+}
+
+- (NSTimer *)timer
+{
+    if (!_timer) {
+        _timer =  [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(timerAction) userInfo:nil repeats:YES];
+    }
+    return _timer;
+}
+
+
 - (void)viewDidLoad {
     [super viewDidLoad];
     
-    [self uiConfigAction];
+    [self determineTheURLFileType];
     [self addDismissButton];
 }
 
-#pragma mark -UI
-- (void)uiConfigAction
+#pragma mark - 判断加载文件类型
+- (void)determineTheURLFileType
+{
+    if ([self.urlString rangeOfString:@".ppt"].location != NSNotFound) {
+//        [self loadPPTfileAction];
+    }else {
+        [self loadURLfileAction];
+    }
+}
+
+#pragma mark - 加载URL
+- (void)loadURLfileAction
 {
     NSSet *websiteDataTypes = [WKWebsiteDataStore allWebsiteDataTypes];
     NSDate *dateFrom = [NSDate dateWithTimeIntervalSince1970:0];
     [[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:websiteDataTypes modifiedSince:dateFrom completionHandler:^{
         NSLog(@"清理缓存成功");
     }];
-    self.webView = [[WKWebView alloc] initWithFrame:self.view.bounds configuration:self.config];
-    [self.view addSubview:self.webView];
-    self.webView.navigationDelegate = self;
-    [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:self.pdfURLString]]];
+    [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:self.urlString]]];
+}
+
+#pragma mark - 加载PPT文件
+- (void)loadPPTfileAction
+{
+    [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:self.urlString]]];
+    self.webView.scrollView.scrollEnabled = NO;
+    self.webView.scrollView.pagingEnabled = YES;
+    self.webView.scrollView.delegate = self;
+    self.countdownLabel.text = @"10";
+    [[NSRunLoop currentRunLoop] addTimer:self.timer forMode:NSDefaultRunLoopMode];
+}
+
+- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
+{
+    NSLog(@" end  %f",scrollView.contentOffset.y);
+    [[NSRunLoop currentRunLoop] addTimer:self.timer forMode:NSDefaultRunLoopMode];
+    self.countdownLabel.text = @"10";
+    self.webView.scrollView.scrollEnabled = NO;
+}
+
+#pragma mark - 浏览PPT倒计时
+- (void)timerAction
+{
+    NSInteger number = [self.countdownLabel.text integerValue];
+    if (number <= 0) {
+        self.webView.scrollView.scrollEnabled = YES;
+        self.countdownLabel.text = @"请翻页";
+        [self.timer invalidate];
+        self.timer = nil;
+    }else{
+        number --;
+        self.countdownLabel.text = [NSString stringWithFormat:@"%ld",number];
+    }
 }
 
 #pragma mark - 添加删除按钮
@@ -96,7 +180,6 @@
     }
 }
 
-
 #pragma mark -dismiss
 - (void)dismissButtonClick
 {

Tools/NetworkRequestClassManager.m

@@ -214,8 +214,7 @@ static NetworkRequestClassManager *manager = nil;
         NSLog(@"%@", downloadProgress);//下载进度
     } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {
         //返回下载到哪里(返回值是一个路径)
-        NSString *homeDictionary = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex: 0];
-        NSString *homepath = [homeDictionary stringByAppendingPathComponent:[response suggestedFilename]];//添加储存的文件名
+        NSString *homepath = [kPathCaches stringByAppendingPathComponent:[NSString stringWithFormat:@"PPT/%@",[response suggestedFilename]]];//添加储存的文件名
         return [NSURL fileURLWithPath:homepath];
     } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {
         //下载完成走这个block

Tools/PrefixHeader.pch

@@ -111,6 +111,11 @@
 #define ZERO 0
 #define ONE 1
 
+/**
+ *  caches路径
+ */
+#define kPathCaches  [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) objectAtIndex:0]
+
 /**
  *  断网标示
  */

Tools/VideoCache/Cache/VICacheManager.m

@@ -23,7 +23,7 @@ static NSTimeInterval kMCMediaCacheNotifyInterval;
 + (void)load {
     static dispatch_once_t onceToken;
     dispatch_once(&onceToken, ^{
-        [self setCacheDirectory:[NSTemporaryDirectory() stringByAppendingPathComponent:@"vimedia"]];
+        [self setCacheDirectory:[kPathCaches stringByAppendingPathComponent:@"Video"]];
         [self setCacheUpdateNotifyInterval:0.1];
     });
 }