//创建并从底部弹出来

- (void)viewDidLoad

{

    [superviewDidLoad];

[selfsetupDocumentControllerWithURL:fileURL];

    CGRect rect =CGRectMake(0,0, ScreenWidth,ScreenHeight);

//    [self.docInteractionController presentOptionsMenuFromRect:rect inView:self.view  animated:YES];//包含快速预览菜单

    [self.docInteractionControllerpresentOpenInMenuFromRect:rect inView:self.viewanimated:YES];//不包含包含快速预览菜单

}

// 创建

- (void)setupDocumentControllerWithURL:(NSURL *)url

{

    if (self.docInteractionController ==nil){

        self.docInteractionController = [UIDocumentInteractionControllerinteractionControllerWithURL:url];

        self.docInteractionController.delegate =self;

    }

   else{

        self.docInteractionController.URL = url;

    }

}

#pragma mark - UIDocumentInteractionControllerDelegate

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

    return self;

}

//不显示copy print

- (BOOL)documentInteractionController:(UIDocumentInteractionController *)controller canPerformAction:(SEL)action{

    return NO;

}

- (BOOL)documentInteractionController:(UIDocumentInteractionController *)controller performAction:(SEL)action{

    return NO;

}