300分求问大神

哎，真难 2015-07-20 10:15:20

需求是这样的，我写了一个webview，用html5写的，html5里面有一个连接，判断该链接是否为下载链接，下载链接就让它下载，
那么问题来了，我现在已经判断出下载链接了，这是别人分别写的两个下载类
第一个别人写的下载方法

- (void) downloadFileWithUrl: (NSString*)fileUrl {

    NSString *filePath = fileUrl;

    NSString *fileHost ;

    fileHost = HOST_ADDRESS;

    NSString *tempPath = NSTemporaryDirectory();

    localFilePath = [NSString stringWithFormat:@"%@%@.pdf",tempPath,filePath];

    [self clearParameter];

    [self setDownLoadUrl:filePath];

    [self downloadToFile:localFilePath];//设置存放路径的地址

    [self setShowWaiting:YES];

}

我是这样调用的

FileDownloadNetworkAction *fileDownLoad = [FileDownloadNetworkAction new];

        [fileDownLoad downloadFileWithUrl:filePath];

debug的时候可以进去，但是下载了，然后了？没反应，我也不知道是否下载好了，求问这个地方如果要加提示，下载完成请用什么打开该如何去做？

第二个别人写的方法，是直接一个view，下载好了，就打开显示在这个view里面，view的名字叫FileViewController，里面有个方法就是用于显示的

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

{

    [tableView deselectRowAtIndexPath:indexPath animated:YES];

    NSDictionary *cellFileData = [[[[fileFormData getFileFormGroupArray] objectAtIndex:indexPath.section] valueForKey:@"groupData"] objectAtIndex:indexPath.row];

    NSString *url = [cellFileData valueForKey:@"pdfUrl"];

    pdfUrl = url;

    

    if ([[cellFileData valueForKey:@"prefix"] isEqualToString:@"正文"] || [[cellFileData valueForKey:@"prefix"] isEqualToString:@"处理单"]   || [[cellFileData valueForKey:@"prefix"] isEqualToString:@"稿纸"]) {

        fileTitle = [self.fileData valueForKey:@"title"];

        if (!fileTitle) {

            fileTitle = [self.fileData valueForKey:@"name"];

        }

    }else{

        fileTitle = [NSString stringWithFormat:@"%@",[cellFileData valueForKey:@"title"]];

    }



    if ([[pdfUrl lastPathComponent] isEqualToString:@"null"]){

        [self.rootVC showHudText:@"文件打开失败"];

        return;

    }

    if (isIntegrated){

        pdfUrl = [YXFramework chanegPath:pdfUrl newIp:[[NSUserDefaults standardUserDefaults] valueForKey:@"Server_IP"]];

    }

    [self downloadFileURL:pdfUrl savePath:NSTemporaryDirectory() fileName:[NSString stringWithFormat:@"%@%@",[cellFileData valueForKey:@"title"],@".pdf"] withTitle:fileTitle];

    //

}



- (void)downloadFileURL:(NSString *)aUrl savePath:(NSString *)aSavePath fileName:(NSString *)aFileName withTitle:(NSString*)title

{

    NSFileManager *fileManager = [NSFileManager defaultManager];

    NSString *fileName = [NSString stringWithFormat:@"%@%@", aSavePath, [aUrl lastPathComponent]];

    

    if ([fileManager fileExistsAtPath:fileName]) {

        [self.rootVC showFile:fileName title:title];

    }else{

        MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.tableView animated:YES];

        hud.mode = MBProgressHUDModeAnnularDeterminate;

        hud.labelText = @"下载中";

        if (![fileManager fileExistsAtPath:aSavePath]) {

            [fileManager createDirectoryAtPath:aSavePath withIntermediateDirectories:YES attributes:nil error:nil];

        }

        NSURL *url = [[NSURL alloc] initWithString:aUrl];

        NSURLRequest *request = [NSURLRequest requestWithURL:url];

        AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

        operation.inputStream   = [NSInputStream inputStreamWithURL:url];

        operation.outputStream  = [NSOutputStream outputStreamToFileAtPath:fileName append:NO];

        [operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {

            

            NSLog(@"is download：%f", (float)totalBytesRead/totalBytesExpectedToRead);

            hud.progress = (float)totalBytesRead/totalBytesExpectedToRead;

        }];

        [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

            DLog(@"下载成功");

            [hud hide:YES];

            NSString *filePath = [NSString stringWithFormat:@"%@%@", NSTemporaryDirectory(), [aUrl lastPathComponent]];

            //[self performSelector:@selector(showFile:) withObject:[NSArray arrayWithObjects:filePath,title, nil] afterDelay:0.5];

            [self.rootVC showFile:filePath title:title];

        } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

            DLog(@"下载失败");

            [self showHudText:@"下载失败"];

            [hud hide:YES];

        }];

        

        [operation start];

    }

}