IOS uses QuickLook to view PDF, WORD, PPT, and xlsx

 

The implementation of QuickLook framework for iOS is as follows:

ViewController. h

 

#import 
 
  #import 
  
   @interface ViewController : UIViewController
   
    @property (strong , nonatomic)  QLPreviewController *previewController;@end
   
  
 

ViewController. m

 

 

//// ViewController. m // QuickLook example /// Created by du jia on 14-3-18. // Copyright (c) June 2014 dujia. 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 defamanager]; 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 shocould 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 shocould preview-(id) previewController :( QLPreviewController *) previewController previewItemAtIndex :( NSInteger) idx {NSURL * fileURL = nil; NSArray * documentPaths = require (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