#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

@synthesize dirArray;

@synthesize docInteractionController;

- (void)viewDidLoad

{

[super viewDidLoad];

//    //step5. 保存一张图片到设备document文件夹中(为了测试方便)

//    UIImage *image = [UIImage imageNamed:@"testPic.jpg"];

//    NSData *jpgData = UIImageJPEGRepresentation(image, 0.8);

//    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

//    NSString *documentsPath = [paths objectAtIndex:0]; //Get the docs directory

//    NSString *filePath = [documentsPath stringByAppendingPathComponent:@"testPic.jpg"]; //Add the file name

//    [jpgData writeToFile:filePath atomically:YES]; //Write the file

//

//

//    //step5. 保存一份txt文件到设备document文件夹中(为了测试方便)

//    char *saves = "Colin_csdn";

//    NSData *data = [[NSData alloc] initWithBytes:saves length:10];

//    filePath = [documentsPath stringByAppendingPathComponent:@"colin.txt"];

//    [data writeToFile:filePath atomically:YES];

readTable = [[UITableView alloc] initWithFrame:CGRectMake(0, 64, self.view.frame.size.width, self.view.frame.size.height - 64 -49)];

readTable.dataSource = self;

readTable.delegate = self;

[self.view addSubview:readTable];

//step6. 获取沙盒里所有文件

NSFileManager *fileManager = [NSFileManager defaultManager];

//在这里获取应用程序Documents文件夹里的文件及文件夹列表

NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentDir = [documentPaths objectAtIndex:0];

NSError *error = nil;

NSArray *fileList = [[NSArray alloc] init];

//fileList便是包含有该文件夹下所有文件的文件名及文件夹名的数组

fileList = [fileManager contentsOfDirectoryAtPath:documentDir error:&error];

self.dirArray = [[NSMutableArray alloc] init];

for (NSString *file in fileList)

{

[self.dirArray addObject:file];

}

//step6. 刷新列表, 显示数据

[readTable reloadData];

}

//step7. 利用url路径打开UIDocumentInteractionController

- (void)setupDocumentControllerWithURL:(NSURL *)url

{

if (self.docInteractionController == nil)

{

self.docInteractionController = [UIDocumentInteractionController interactionControllerWithURL:url];

self.docInteractionController.delegate = self;

}

else

{

self.docInteractionController.URL = url;

}

}

#pragma mark- 列表操作

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView

{

return 1;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

static NSString *CellName = @"CellName";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellName];

if (cell == nil)

{

cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellName];

cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

}

NSURL *fileURL= nil;

NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentDir = [documentPaths objectAtIndex:0];

NSString *path = [documentDir stringByAppendingPathComponent:[self.dirArray objectAtIndex:indexPath.row]];

fileURL = [NSURL fileURLWithPath:path];

[self setupDocumentControllerWithURL:fileURL];

cell.textLabel.text = [self.dirArray objectAtIndex:indexPath.row];

NSInteger iconCount = [self.docInteractionController.icons count];

if (iconCount > 0)

{

cell.imageView.image = [self.docInteractionController.icons objectAtIndex:iconCount - 1];

}

return cell;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

return [self.dirArray count];

}

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

{

[tableView deselectRowAtIndexPath:indexPath animated:YES];

QLPreviewController *previewController = [[QLPreviewController alloc] init];

previewController.dataSource = self;

previewController.delegate = self;

// start previewing the document at the current section index

previewController.currentPreviewItemIndex = indexPath.row;

//    [[self navigationController] pushViewController:previewController animated:YES];

[self presentViewController:previewController animated:YES completion:nil];

}

#pragma mark - UIDocumentInteractionControllerDelegate

- (NSString *)applicationDocumentsDirectory

{

return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];

}

- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)interactionController

{

return self;

}

#pragma mark - QLPreviewControllerDataSource

// Returns the number of items that the preview controller should preview

- (NSInteger)numberOfPreviewItemsInPreviewController:(QLPreviewController *)previewController

{

return 1;

}

- (void)previewControllerDidDismiss:(QLPreviewController *)controller

{

// if the preview dismissed (done button touched), use this method to post-process previews

}

// returns the item that the preview controller should preview

- (id)previewController:(QLPreviewController *)previewController previewItemAtIndex:(NSInteger)idx

{

NSURL *fileURL = nil;

NSIndexPath *selectedIndexPath = [readTable indexPathForSelectedRow];

NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentDir = [documentPaths objectAtIndex:0];

NSString *path = [documentDir stringByAppendingPathComponent:[self.dirArray objectAtIndex:selectedIndexPath.row]];

fileURL = [NSURL fileURLWithPath:path];

return fileURL;

}

- (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

这个iTunes同步相对来说比较简单, 接下来可以关注我的实现WIFI局域网传输文件到iPhone, 希望对你们有所帮助