到今天實現功能, 由iTunes導入文件的應用程序, 并在此文檔進行編輯的應用。

就像我們平時經常使用 PDF閱讀這樣的事情, 們能夠自己導入我們的電子書。

源代碼下載:https://github.com/colin1994/iTunesTest.git

以下詳細介紹下實現過程。

先看效果圖。

圖1. 未實現功能前, iTunes截圖

圖2. 實現功能后, iTunes截圖

圖3. 實現功能后, 執行截圖。

好了, 通過圖片, 我們能夠看到實現的效果。

功能包括: 同意通過iTunes導入文件。

能夠查看沙盒下全部文件。

實現過程:

1。

在應用程序的Info.plist文件里加入UIFileSharingEnabled鍵，并將鍵值設置為YES。

2。詳細代碼:

ViewController.h

// // ViewController.h // iTunesTest // // Created by Colin on 14-6-8. // Copyright (c) 2014年 icephone. All rights reserved. //#import <UIKit/UIKit.h>//step1. 導入QuickLook庫和頭文件 #import <QuickLook/QuickLook.h>//step2. 繼承協議 @interface ViewController : UIViewController<UITableViewDataSource,UITableViewDelegate,QLPreviewControllerDataSource,QLPreviewControllerDelegate,UIDocumentInteractionControllerDelegate> {//step3. 聲明顯示列表IBOutlet UITableView *readTable; }//setp4. 聲明變量 //UIDocumentInteractionController : 一個文件交互控制器,提供應用程序管理與本地系統中的文件的用戶交互的支持 //dirArray : 存儲沙盒子里面的全部文件 @property(nonatomic,retain) NSMutableArray *dirArray; @property (nonatomic, strong) UIDocumentInteractionController *docInteractionController; @end
ViewController.m

// // ViewController.m // iTunesTest // // Created by Colin on 14-6-8. // Copyright (c) 2014年 icephone. All rights reserved. //#import "ViewController.h"@interface ViewController ()@end@implementation ViewController @synthesize dirArray; @synthesize docInteractionController;- (void)viewDidLoad {[super viewDidLoad];//step5. 保存一張圖片到設備document目錄中(為了測試方便)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 directoryNSString *filePath = [documentsPath stringByAppendingPathComponent:@"testPic.jpg"]; //Add the file name[jpgData writeToFile:filePath atomically:YES]; //Write the file//step5. 保存一份txt文件到設備document目錄中(為了測試方便)char *saves = "Colin_csdn";NSData *data = [[NSData alloc] initWithBytes:saves length:10];filePath = [documentsPath stringByAppendingPathComponent:@"colin.txt"];[data writeToFile:filePath atomically:YES];//step6. 獲取沙盒里全部文件NSFileManager *fileManager = [NSFileManager defaultManager];//在這里獲取應用程序Documents目錄里的文件及目錄列表NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);NSString *documentDir = [documentPaths objectAtIndex:0];NSError *error = nil;NSArray *fileList = [[NSArray alloc] init];//fileList便是包括有該目錄下全部文件的文件名稱及目錄名的數組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, 顯示數據[readTable reloadData]; }//step7. 利用url路徑打開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 {QLPreviewController *previewController = [[QLPreviewController alloc] init];previewController.dataSource = self;previewController.delegate = self;// start previewing the document at the current section indexpreviewController.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. }@end

版權聲明：本文博客原創文章，博客，未經同意，不得轉載。

轉載于:https://www.cnblogs.com/bhlsheji/p/4651282.html

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