关于Quicklook 以及 QLPreviewController
Quicklook 支持的文件:
- iWork文档
- 微软Office97以上版本的文档
- RTF文档
- PDF文件
- 图片文件
- 文本文件和CSV文件
首先需要加入framework:
然后加入头文件:
#import <QuickLook/QuickLook.h>
在需要进入快速查看的地方初始化(这里只显示一个文件):
local_file_URL = [NSURL fileURLWithPath:path];
QLPreviewController *ql = [[[QLPreviewController alloc]initWithNibName:nil bundle:nil] autorelease]; ql.navigationController.navigationBarHidden = YES; // Set data source ql.dataSource = self; // Which item to preview [ql setCurrentPreviewItemIndex:0]; navigationController = [[[UINavigationController alloc]initWithRootViewController:ql] autorelease]; UIBarButtonItem *backButton = [[UIBarButtonItem alloc]initWithTitle:@"back" style:UIBarButtonItemStylePlain target:self action:@selector(closeQuickLookAction:)]; ql.navigationItem.leftBarButtonItem = backButton; // Push new viewcontroller, previewing the document [self presentModalViewController:navigationController animated:YES];
backButton的响应事件:
- (IBAction)closeQuickLookAction:(id)sender { [navigationController dismissModalViewControllerAnimated:YES]; }
#pragma mark - quicklook - (NSInteger) numberOfPreviewItemsInPreviewController: (QLPreviewController *) controller { return 1; } - (id <QLPreviewItem>)previewController: (QLPreviewController *)controller previewItemAtIndex:(NSInteger)index { return local_file_URL; }