NavigationBar 常用自定义方法总结
class ViewController: UIViewController {
@IBOutlet weak var customSegmentControl: UISegmentedControl!
struct SegmentedControl {
static let textButton = 0
static let imageButton = 1
static let controlButton = 2
static let customTitleView = 3
}
override func viewWillAppear(_ animated: Bool) {
self.title = "二级页面"
self.navigationController?.setNavigationBarHidden(false, animated: true)
}
override func viewDidLoad() {
super.viewDidLoad()
layoutSubViews()
}
func layoutSubViews() {
self.view.backgroundColor = UIColor.white
//定制化navigationbar
self.navigationController!.navigationBar.barStyle = .black //系统只有两种选择，default和black
self.navigationController!.navigationBar.isTranslucent = true //是否透明
//foregroundColor 文字的前景色就是字体的颜色
//backgroundColor 文字的背景色
//strikethroughStyle 删除线,后面参数是设置的删除线的宽度
//underlineStyle 下划线，后面参数是设置的下划线的宽度
//stroke 描边
//shadow 阴影
//font 字体大小
let shadow = NSShadow.init()
shadow.shadowColor = UIColor.systemPink
shadow.shadowBlurRadius = 8
shadow.shadowOffset = CGSize.init(width: 10, height: 10)
//附件attachment
let attachment = NSTextAttachment.init(image: UIImage.init(named:"Image") ?? UIImage.init())
self.navigationController!.navigationBar.titleTextAttributes = [.foregroundColor: UIColor.white, .backgroundColor:UIColor.red, .strikethroughStyle:2,.underlineStyle:1,.strokeColor:UIColor.blue, .strokeWidth:3,.shadow:shadow,.font:UIFont.systemFont(ofSize: 40)] //定义navigationbar的title text属性
//#colorLiteral(red: 1, green: 0.99997437, blue: 0.9999912977, alpha: 1)
self.navigationController!.navigationBar.tintColor = colorLiteral(red: 0.4745098054, green: 0.8392156959, blue: 0.9764705896, alpha: 1) //修改navigationbar的返回键的图标和文字颜色
self.navigationController?.navigationBar.barTintColor = colorLiteral(red: 0.9797042505, green: 0.5248824416, blue: 0.5065333076, alpha: 1) //修改navigationbar的整体背景颜色
self.navigationController?.navigationBar.setBackgroundImage(UIImage.init(named: "Image"), for: UIBarMetrics.default)//修改navigationbar的背景图片
self.navigationController?.navigationBar.setTitleVerticalPositionAdjustment(0, for: UIBarMetrics.default)//提供了title向上或者向下垂直偏移的幅度，正数是向下偏移，负数是向上偏移
self.navigationController?.navigationBar.setTitleVerticalPositionAdjustment(-5, for: UIBarMetrics.compact)//可以设计横屏样式
//promp 提示会在navigationbar头部位置展示自定义的文本信息
navigationItem.prompt = NSLocalizedString("Navigation prompts appear at the top.", comment: "")
//self.navigationController?.navigationBar.prefersLargeTitles = true
// Make the navigation bar's title with red text.
// let appearance = UINavigationBarAppearance()
// appearance.configureWithOpaqueBackground()
// appearance.backgroundColor = UIColor.systemRed
// appearance.titleTextAttributes = [.foregroundColor: UIColor.lightText] // With a red background, make the title more readable.
// navigationItem.standardAppearance = appearance
// navigationItem.scrollEdgeAppearance = appearance
// navigationItem.compactAppearance = appearance // For iPhone small navigation bar in landscape.
//
// // Make all buttons with green text.
// let buttonAppearance = UIBarButtonItemAppearance()
// buttonAppearance.normal.titleTextAttributes = [.foregroundColor: UIColor.systemGreen]
// navigationItem.standardAppearance?.buttonAppearance = buttonAppearance
// navigationItem.compactAppearance?.buttonAppearance = buttonAppearance // For iPhone small navigation bar in landscape.
//
// // Make the done style button with yellow text.
// let doneButtonAppearance = UIBarButtonItemAppearance()
// doneButtonAppearance.normal.titleTextAttributes = [.foregroundColor: UIColor.systemYellow]
// navigationItem.standardAppearance?.doneButtonAppearance = doneButtonAppearance
// navigationItem.compactAppearance?.doneButtonAppearance = doneButtonAppearance // For iPhone small navigation bar in landscape.
}
@IBAction func action(_ sender: AnyObject) {
Swift.debugPrint("CustomRightViewControll ibaction invoked.")
}
//navigationItem 有几个常用的属性，titleview rightbarbuttonitem，leftbarbuttonitem，rightbarbutton, leftbarbutton, title
@IBAction func customSegmentControlSelected(_ sender: UISegmentedControl) {
switch sender.selectedSegmentIndex {
case SegmentedControl.textButton:
let addButton = UIBarButtonItem(title: NSLocalizedString("AddTitle", comment: ""),
style: .plain,
target: self,
action: #selector(action(_:)))
navigationItem.rightBarButtonItem = addButton
case SegmentedControl.imageButton:
let emailButton = UIBarButtonItem(image: UIImage(systemName: "envelope")!,
style: .plain,
target: self,
action: #selector(action(_:)))
navigationItem.rightBarButtonItem = emailButton
case SegmentedControl.controlButton:
let segmentedControl = UISegmentedControl(items: [
UIImage(systemName: "arrow.up")!,
UIImage(systemName: "arrow.down")!
])
segmentedControl.addTarget(self, action: #selector(action), for: .valueChanged)
segmentedControl.frame = CGRect(x: 0, y: 0, width: 90, height: 30)
segmentedControl.isMomentary = true
let segmentBarItem = UIBarButtonItem(customView: segmentedControl)
navigationItem.rightBarButtonItem = segmentBarItem
case SegmentedControl.customTitleView:
let segmentTextContent = [
NSLocalizedString("Image", comment: ""),
NSLocalizedString("Text", comment: ""),
NSLocalizedString("Video", comment: "")
]
let segmentedControl = UISegmentedControl(items: segmentTextContent)
segmentedControl.selectedSegmentIndex = 0
segmentedControl.autoresizingMask = .flexibleWidth
segmentedControl.frame = CGRect(x: 0, y: 0, width: 400, height: 30)
segmentedControl.addTarget(self, action: #selector(action(_:)), for: .valueChanged)
self.navigationItem.titleView = segmentedControl
default:
break
}
}
}
//这里需要注意，如果想修改back按钮的文字，实际上需要在之前一个viewcontroller中设置，这样push出来后就是被改变后的显示内容
let backBarButtton = UIBarButtonItem(title: "测试", style: .plain, target: nil, action: nil)
navigationItem.backBarButtonItem = backBarButtton