UIToolbar에 UILabel 추가

UIToolbar에 UILabel 추가

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내 도구 모음에 레이블을 추가하려고합니다. 버튼은 잘 작동하지만 라벨 객체를 추가하면 충돌이 발생합니다. 어떤 아이디어?

UIBarButtonItem *setDateRangeButton = [[UIBarButtonItem alloc] initWithTitle:@"Set date range"
                                                                       style:UIBarButtonItemStyleBordered
                                                                      target:self
                                                                      action:@selector(setDateRangeClicked:)];

UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(5, 5, 20, 20)];
label.text = @"test";

[toolbar setItems:[NSArray arrayWithObjects:setDateRangeButton,label, nil]];

// Add the toolbar as a subview to the navigation controller.
[self.navigationController.view addSubview:toolbar];

// Reload the table view
[self.tableView reloadData];

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이것 좀 봐

[[UIBarButtonItem alloc] initWithCustomView:yourCustomView];

기본적으로 모든 항목은 "버튼"이어야하지만 필요한 모든보기로 인스턴스화 할 수 있습니다. 다음은 몇 가지 예제 코드입니다. 다른 버튼은 일반적으로 도구 모음에 있으므로 스페이서는 제목 버튼의 양쪽에 배치되어 중앙에 유지됩니다.

NSMutableArray *items = [[self.toolbar items] mutableCopy];

UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
[items addObject:spacer];
[spacer release];

self.titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0 , 11.0f, self.view.frame.size.width, 21.0f)];
[self.titleLabel setFont:[UIFont fontWithName:@"Helvetica-Bold" size:18]];
[self.titleLabel setBackgroundColor:[UIColor clearColor]];
[self.titleLabel setTextColor:[UIColor colorWithRed:157.0/255.0 green:157.0/255.0 blue:157.0/255.0 alpha:1.0]];
[self.titleLabel setText:@"Title"];
[self.titleLabel setTextAlignment:NSTextAlignmentCenter];

UIBarButtonItem *spacer2 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
[items addObject:spacer2];
[spacer2 release];

UIBarButtonItem *title = [[UIBarButtonItem alloc] initWithCustomView:self.titleLabel];
[items addObject:title];
[title release];

[self.toolbar setItems:items animated:YES];
[items release];

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인터페이스 빌더를 사용하여를 레이아웃 UIToolBar하는 경우 인터페이스 빌더 만 사용하여이 작업을 수행 할 수도 있습니다.

To add a UILabel to a UIToolBar you need to add a generic UIView object to your UIToolBar in IB by dragging a new UIView object over your UIToolBar. IB will automatically create a UIBarButtonItem that will be initialized with your custom UIView. Next add a UILabel to the UIView and edit the UILabel graphically to match your preferred style. You can then visually set up your fixed and/or variable spacers as desired to position your UILabel appropriately.

You must also set the background of both the UILabel and the UIView to clearColor to get the UIToolBar to show through correctly under the UILabel.

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I found answerBot's answer very useful, but I think I found an even easier way, in Interface Builder:

• create a UIBarButtonItem and add it to your Toolbar in Interface Builder

• Uncheck "enabled" for this BarButtonItem

• plug this BarButtonItem to a property in your class (this is in Swift, but would be very similar in Obj-C):

  @IBOutlet private weak var lastUpdateButton: UIBarButtonItem! // Dummy barButtonItem whose customView is lastUpdateLabel
  

• add another property for the Label itself:

  private var lastUpdateLabel = UILabel(frame: CGRectZero)
  

• in viewDidLoad, add the following code to set the properties of your label, and add it as the customView of your BarButtonItem

  // Dummy button containing the date of last update
  lastUpdateLabel.sizeToFit()
  lastUpdateLabel.backgroundColor = UIColor.clearColor()
  lastUpdateLabel.textAlignment = .Center
  lastUpdateButton.customView = lastUpdateLabel
  

• To update the UILabel text:

  lastUpdateLabel.text = "Updated: 9/12/14, 2:53"
  lastUpdateLabel.sizeToFit() 
  

Result :

You have to call lastUpdateLabel.sizetoFit() each time you update the label text

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One of the things I'm using this trick for is to instantiate a UIActivityIndicatorView on top of the UIToolBar, something that otherwise wouldn't be possible. For instance here I have a UIToolBar with 2 UIBarButtonItem, a FlexibleSpaceBarButtonItem, and then another UIBarButtonItem. I want to insert a UIActivityIndicatorView into the UIToolBar between the flexible space and the final (right-hand) button. So in my RootViewController I do the following,

- (void)viewDidLoad {
[super viewDidLoad];// Add an invisible UIActivityViewIndicator to the toolbar
UIToolbar *toolbar = (UIToolbar *)[self.view viewWithTag:767];
NSArray *items = [toolbar items];

activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 20.0f, 20.0f)];
[activityIndicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhite];    

NSArray *newItems = [NSArray arrayWithObjects:[items objectAtIndex:0],[items objectAtIndex:1],[items objectAtIndex:2],
                     [[UIBarButtonItem alloc] initWithCustomView:activityIndicator], [items objectAtIndex:3],nil];
[toolbar setItems:newItems];}

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Similar to Matt R I used interface builder. But I wanted to have 1 UIWebView inside instead so that i can have some text bolded and other text not (like the mail app). So

1. Add the webview instead.
2. Uncheck opaque
3. Make sure background is clear color
4. Hook everything up with IBOutlet
5. Use the below html to have a transparent background so the toolbar shines through

Code:

NSString *path = [[NSBundle mainBundle] bundlePath];
NSURL *baseURL = [NSURL fileURLWithPath:path];
NSString *html = [NSString stringWithFormat:@"<html><head><style>body{font-size:11px;text-align:center;background-color:transparent;color:#fff;font-family:helvetica;vertical-align:middle;</style> </head><body><b>Updated</b> 10/11/12 <b>11:09</b> AM</body></html>"];
[myWebView loadHTMLString:html baseURL:baseURL];

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Details

• Xcode 10.2.1 (10E1001), Swift 5

Full sample

import UIKit

class ViewController: UIViewController {

    private weak var toolBar: UIToolbar?

    override func viewDidLoad() {
        super.viewDidLoad()

        var bounds =  UIScreen.main.bounds
        let bottomBarWithHeight = CGFloat(44)
        bounds.origin.y = bounds.height - bottomBarWithHeight
        bounds.size.height = bottomBarWithHeight
        let toolBar = UIToolbar(frame: bounds)
        view.addSubview(toolBar)

        var buttons = [UIBarButtonItem]()
        buttons.append(UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(ViewController.action)))
        buttons.append(UIBarButtonItem(barButtonSystemItem: .camera, target: self, action: #selector(ViewController.action)))
        buttons.append(UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil))
        buttons.append(UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil))
        buttons.append(ToolBarTitleItem(text: "\(NSDate())", font: .systemFont(ofSize: 12), color: .lightGray))
        buttons.append(UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil))
        buttons.append(UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action:  #selector(ViewController.action)))
        toolBar.items = buttons

        self.toolBar = toolBar
    }
    @objc func action() { print("action") }
}

class ToolBarTitleItem: UIBarButtonItem {

    init(text: String, font: UIFont, color: UIColor) {
        let label =  UILabel(frame: UIScreen.main.bounds)
        label.text = text
        label.sizeToFit()
        label.font = font
        label.textColor = color
        label.textAlignment = .center
        super.init()
        customView = label
    }
    required init?(coder aDecoder: NSCoder) { super.init(coder: aDecoder) }
}

Result

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If you want to adding a view up the toolbar view you can try this:

[self.navigationController.tabBarController.view addSubview:yourView];

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Try this:

UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(140 , 0, 50, 250)];
[label setBackgroundColor:[UIColor clearColor]];
label.text = @"TEXT";
UIView *view = (UIView *) label;
[self.barItem setCustomView:view];

Note: self.barItem is a UIBarButtonItem added from the object library and placed between two flexible spaces.

another way is to remove the [self.barItem setCustom:view] line and change the parameters of the label (width) so that it fills the entire toolbar and set the alignment to middle and the font by yourself in code,

참고URL : https://stackoverflow.com/questions/333441/adding-a-uilabel-to-a-uitoolbar