什么是UIToolBar增加的UITableViewController最简单的方法? 我取决于编辑的功能,所以我不能轻易改变的UITableViewController来的UIViewController。
Answer 1:
一点问题都没有, UITableViewController
是的子类UIViewController
。 而恰巧在iPhone OS 3.0的任何UIViewController
(和子类)可以结合工作用UINavigationController
提供上下文感知工具栏。
为了让这对你的工作必须:
- 请确保您使用
UINavigationController
包含需要一个工具栏所有视图控制器。 - 设置
toolbarsItems
想要一个工具栏视图控制器的性能。
这是几乎一样简单的设置视图控制器的标题,而且应该做同样的方式。 最有可能通过重写initWithNibName:bundle:
初始化。 举个例子:
-(id)initWithNibName:(NSString*)name bundle:(NSBundle*)bundle;
{
self = [super initWithNibName:name bundle:bundle];
if (self) {
self.title = @"My Title";
NSArray* toolbarItems = [NSArray arrayWithObjects:
[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd
target:self
action:@selector(addStuff:)],
[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch
target:self
action:@selector(searchStuff:)],
nil];
[toolbarItems makeObjectsPerformSelector:@selector(release)];
self.toolbarItems = toolbarItems;
self.navigationController.toolbarHidden = NO;
}
return self;
}
您还可以使用setToolbarItems:animated:
而不是分配给toolbarItems
财产,以动画方式在飞行中添加和删除工具栏项目。
Answer 2:
为了使PeyloW的食谱工作,我需要添加以下代码附加行:
self.navigationController.toolbarHidden = NO;
希望可以帮助...
Answer 3:
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
//Initialize the toolbar
toolbar = [[UIToolbar alloc] init];
toolbar.barStyle = UIBarStyleDefault;
//Set the toolbar to fit the width of the app.
[toolbar sizeToFit];
//Caclulate the height of the toolbar
CGFloat toolbarHeight = [toolbar frame].size.height;
//Get the bounds of the parent view
CGRect rootViewBounds = self.parentViewController.view.bounds;
//Get the height of the parent view.
CGFloat rootViewHeight = CGRectGetHeight(rootViewBounds);
//Get the width of the parent view,
CGFloat rootViewWidth = CGRectGetWidth(rootViewBounds);
//Create a rectangle for the toolbar
CGRect rectArea = CGRectMake(0, rootViewHeight - toolbarHeight, rootViewWidth, toolbarHeight);
//Reposition and resize the receiver
[toolbar setFrame:rectArea];
//Create a button
UIBarButtonItem *infoButton = [[UIBarButtonItem alloc]
initWithTitle:@"back" style:UIBarButtonItemStyleBordered target:self action:@selector(info_clicked:)];
[toolbar setItems:[NSArray arrayWithObjects:infoButton,nil]];
//Add the toolbar as a subview to the navigation controller.
[self.navigationController.view addSubview:toolbar];
[[self tableView] reloadData];
}
- (void) info_clicked:(id)sender {
[self.navigationController popViewControllerAnimated:YES];
[toolbar removeFromSuperview];
}
而在斯威夫特3:
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
//Initialize the toolbar
let toolbar = UIToolbar()
toolbar.barStyle = UIBarStyle.default
//Set the toolbar to fit the width of the app.
toolbar.sizeToFit()
//Caclulate the height of the toolbar
let toolbarHeight = toolbar.frame.size.height
//Get the bounds of the parent view
let rootViewBounds = self.parent?.view.bounds
//Get the height of the parent view.
let rootViewHeight = rootViewBounds?.height
//Get the width of the parent view,
let rootViewWidth = rootViewBounds?.width
//Create a rectangle for the toolbar
let rectArea = CGRect(x: 0, y: rootViewHeight! - toolbarHeight, width: rootViewWidth!, height: toolbarHeight)
//Reposition and resize the receiver
toolbar.frame = rectArea
//Create a button
let infoButton = UIBarButtonItem(title: "Back", style: UIBarButtonItemStyle.plain, target: self, action: #selector(infoClicked))
toolbar.items = [infoButton]
//Add the toolbar as a subview to the navigation controller.
self.navigationController?.view.addSubview(toolbar)
}
func infoClicked() {
//Handle Click Here
}
文章来源: Add toolbar to UITableViewController