iOS 利用QuickLook查看PDF、WORD、PPT、xlsx

代码下载：http://download.csdn.net/detail/qqmcy/7059831

这个我们学习iOS的QuickLook框架实现很简单，如下：

ViewController.h

#import <UIKit/UIKit.h>#import <QuickLook/QuickLook.h>@interface ViewController : UIViewController<QLPreviewControllerDataSource,QLPreviewControllerDelegate,UIDocumentInteractionControllerDelegate>@property (strong , nonatomic)  QLPreviewController *previewController;@end

ViewController.m

////  ViewController.m//  QuickLook例子////  Created by 杜甲 on 14-3-18.//  Copyright (c) 2014年 杜甲. All rights reserved.//#import "ViewController.h"@interface ViewController ()@property (strong , nonatomic) NSArray* m_dirArray;@property (strong , nonatomic) UIDocumentInteractionController* m_docInteractionController;@end@implementation ViewController- (void)viewDidLoad{    [super viewDidLoad];             NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    NSString *documentsPath = [paths objectAtIndex:0]; //Get the docs directory               NSString*   pathppt  = [[NSBundle mainBundle] pathForResource:@"C" ofType:@"pdf"];    NSData* pptData = [NSData dataWithContentsOfFile:pathppt];    NSString* filePath = [documentsPath stringByAppendingPathComponent:@"C1.pdf"];        [pptData writeToFile:filePath atomically:YES];                NSFileManager* fileManager = [NSFileManager defaultManager];    self.m_dirArray = [NSArray array];    self.m_dirArray = [fileManager contentsOfDirectoryAtPath:documentsPath error:Nil];    NSLog(@"%@",self.m_dirArray);    self.view.backgroundColor  = [UIColor redColor];         self.previewController = [[QLPreviewController alloc] init];    //self.previewController.view.frame = CGRectMake(0, 0, 320, 568);    self.previewController.view.backgroundColor = [UIColor grayColor];    self.previewController.dataSource = self;    self.previewController.delegate = self;        // start previewing the document at the current section index    self.previewController.currentPreviewItemIndex = 0;//indexPath.row;    [self presentViewController:self.previewController animated:YES completion:^{        [self.view addSubview:self.previewController.view];    }];    [self.view addSubview:self.previewController.view];}#pragma mark - QLPreviewControllerDataSource// Returns the number of items that the preview controller should preview- (NSInteger)numberOfPreviewItemsInPreviewController:(QLPreviewController *)previewController{return [self.m_dirArray count];//[self.dirArray count];}- (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;        NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);NSString *documentDir = [documentPaths objectAtIndex:0];        NSString* path1 = [self.m_dirArray objectAtIndex:idx];    NSString* path = [documentDir stringByAppendingPathComponent:path1];    fileURL = [NSURL fileURLWithPath:path];    return fileURL;}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end