ios - 如何在 qlpreviewcontroller 上显示数据

Question

我正在使用 qlpreviewcontroller 来显示 JPG、PNG、PDF 和 DOCS 文件。我的问题是如何在 Dropbox 应用中显示文件预览？我还想在上面添加导航栏和工具栏。需要帮助...

Answer 1

You have to use 
self.navigationcontroller.navigationbar.hidden=NO; //For navigationbar

for Toolbar

NSArray* toolbarItems = [NSArray arrayWithObjects:
        [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd 
                                                      target:self
                                                      action:@selector(your method name:)],
        [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch 
                                                      target:self
                                                      action:@selector(your method name:)],
        nil];

    self.toolbarItems = toolbarItems;
    self.navigationController.toolbarHidden = NO;