[下载]

down.m

// 下载、解压加载文件
- (void)getGamesZipHtml:(NSString *)urlStr

{
    self.activityIndicator.hidden = NO;
    
    NSLog(@"接口zip = %@",urlStr);
    NSURL *URL = [NSURL URLWithString:urlStr];
    
    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSArray *documents = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);
    NSString *documentsDirectory = [documents objectAtIndex:0];

    // 创建games路径，没有就直接先创建
    NSString *unZipPath = [documentsDirectory stringByAppendingPathComponent:@"games/game"];
    if (![fileManager fileExistsAtPath:unZipPath]) {
        [fileManager createDirectoryAtPath:unZipPath withIntermediateDirectories:YES attributes:nil error:nil];
    }
    
//    NSArray *files = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:unZipPath error:nil];
    // 判断游戏文件是否存在，存在就直接加载
    NSString *htmlPath = [NSString stringWithFormat:@"%@/index.html",unZipPath];
//    NSLog(@"%@",htmlPath);
    if ([fileManager fileExistsAtPath:htmlPath]) {
        self.index = 2;
        self.progressView.hidden = NO;
        [self.progressView setProgress:1.0 animated:YES];
        // 显示加载进度
        self.loadingLabel.text = [NSString stringWithFormat:@"当前加载进度：100%@",@"%"];
        // 加载webview地址
        NSURL *fileUrl = [NSURL fileURLWithPath:htmlPath];
        [self.webView loadRequest:[NSURLRequest requestWithURL:fileUrl]];
        self.isLoading = NO;
        return;
    }

    // 数据请求
    NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
    //AFN3.0+基于封住URLSession的句柄
    AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];
    //请求
    NSURLRequest *request = [NSURLRequest requestWithURL:URL];
    //下载Task操作
    NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {
        // 回到主队列刷新UI
        dispatch_async(dispatch_get_main_queue(), ^{
            NSLog(@"当前进度 = %f",(1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount));
            NSString *jsStr = [NSString stringWithFormat:@"native.getProgressPercent('%f')",(1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount) * 100];
            [self.webView evaluateJavaScript:jsStr completionHandler:^(id _Nullable result, NSError * _Nullable error) {
//                NSLog(@"%@----%@",result, error);
            }];
            CGFloat jindu = (1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);
            self.progressView.hidden = NO;
            [self.progressView setProgress:jindu animated:YES];
            
            self.loadingLabel.text = [NSString stringWithFormat:@"当前加载进度：%.2f%@",(1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount) * 100,@"%"];
            
        });

    } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {
        //- block的返回值, 要求返回一个URL, 返回的这个URL就是文件的位置的路径
        
        NSString *zipPath = [documentsDirectory stringByAppendingPathComponent:@"games/zipFile"];
        if ([fileManager fileExistsAtPath:zipPath]) {
            [[NSFileManager defaultManager] removeItemAtPath:zipPath error:nil];
        }
        [fileManager createDirectoryAtPath:zipPath withIntermediateDirectories:YES attributes:nil error:nil];
        NSString *path = [zipPath stringByAppendingPathComponent:response.suggestedFilename];
//        NSLog(@"zip path == %@", path);
        return [NSURL fileURLWithPath:path];

    } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {
        // filePath就是你下载文件的位置，你可以解压，也可以直接拿来使用
        NSString *zipPath = [filePath path];// 将NSURL转成NSString
        NSLog(@"unZipPath == %@",unZipPath); //解压后的路径

        //解压zip游戏文件包，加载游戏webveiw
        if ([fileManager fileExistsAtPath:htmlPath]) {
            NSURL *fileUrl = [NSURL fileURLWithPath:htmlPath];
            [self.webView loadRequest:[NSURLRequest requestWithURL:fileUrl]];
            self.isLoading = NO;
            return;
        }else{
            if ([SSZipArchive unzipFileAtPath:zipPath toDestination:unZipPath]) {
                self.index = 2;
//                NSLog(@"YES");
//                NSArray *files = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:unZipPath error:nil];
                NSURL *fileUrl = [NSURL fileURLWithPath:htmlPath];
                [self.webView loadRequest:[NSURLRequest requestWithURL:fileUrl]];
                self.isLoading = NO;
                                
            }else{
//                NSLog(@"NO");
            }
        }
    }];
    [downloadTask resume];
}

            self.index = 2;
            self.isLoading = NO;
            NSURL *fileUrl = [NSURL fileURLWithPath:htmlPath];
//            NSURL *fileUrl =[NSURL URLWithString:@"https://www.baidu.com"];
            [self.webView loadRequest:[NSURLRequest requestWithURL:fileUrl]];


            NSURL * accessUrl = [[NSURL fileURLWithPath:htmlPath] URLByDeletingLastPathComponent];
            [self.webView loadFileURL:[NSURL URLWithString:htmlPath] allowingReadAccessToURL:accessUrl];
            
            NSString *htmlString2 = [NSString stringWithContentsOfFile:htmlPath encoding:NSUTF8StringEncoding error:nil];
            [self.webView loadHTMLString:htmlString2 baseURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@/", DSGameDirectory(key)]]];