swift 关于 toolbar 学习笔记

import UIKit

class ViewController: UIViewController {

@IBOutlet weak var toolBar: UIToolbar!

@IBOutlet weak var addActionLabel: UILabel!

override func viewDidLoad() {

super.viewDidLoad()

configureToolbar();

}

//配置tool bar Item
函数

func configureToolbar(){

let toolbarButtonItem = [addButtonItem,

flexibleSpaceBarButtonItem,

cameraButtonItem]

toolBar.setItems(toolbarButtonItem, animated: true);

}

//tool bar
系统添加按钮 item

var addButtonItem:UIBarButtonItem{

return UIBarButtonItem(barButtonSystemItem: .Add, target: self, action: "AddAction:")

}

//tool bar
系统照相按钮 item

var cameraButtonItem:UIBarButtonItem{

return UIBarButtonItem(barButtonSystemItem:.Camera, target:self, action: "cameraAction:")

}

//item

之间直接弹簧

弹簧

var flexibleSpaceBarButtonItem: UIBarButtonItem {

return UIBarButtonItem(barButtonSystemItem: .FlexibleSpace, target: nil, action: nil)

}

//添加按钮事件

func AddAction(barButtonItem:UIBarButtonItem ){

addActionLabel.text = "add action something"

print("add action something")

}

//照相按钮事件

func cameraAction(barButtonItem:UIBarButtonItem ){

addActionLabel.text = "camera  something"

print("camera  something")

}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()

// Dispose of any resources that can be recreated.

}

 下面 我们在添加一个自定义的buttonItem

//自定义

var customButtonItem:UIBarButtonItem{

return UIBarButtonItem(title:"ToolBar", style:.Done, target: self, action: "CustomAction:")

}

如何添加上图中需要个弹簧 和一个点击事件方法

//item
之间弹簧

var flexibleSpaceBarButtonTwo:UIBarButtonItem{

return UIBarButtonItem(barButtonSystemItem: .FlexibleSpace, target: nil, action: nil);

}

//自定义Item事件

func CustomAction(customBarButtonItem:UIBarButtonItem){

addActionLabel.text = "custom  something"

}

最重要修改配置函数，把新添加的item 放入数组里

//配置tool bar Item
函数

func configureToolbar(){

let toolbarButtonItem = [addButtonItem,

flexibleSpaceBarButtonItem,

cameraButtonItem,flexibleSpaceBarButtonTwo,customButtonItem]

toolBar.setItems(toolbarButtonItem, animated: true);

}

如何你觉得太难看了，好吧，我们可以把buttonItem 添加自己的背景图片，在做项目中经常都是这丫做的

在oc 中 我们可以改变toolbar的style 和tincolor 同样我们在查看swift toolbar api 的时候我们也会看见相同的API

看下api

//        enum UIBarStyle : Int {

//

//            case Default

//            case Black

//

//            // Deprecated. Use UIBarStyleBlack

//            case BlackTranslucent // Deprecated. Use UIBarStyleBlack and set the translucent property to YES

//        }

我就设置下 黑色透明的吧

toolBar.barStyle = .BlackTranslucent

toolBar.translucent = true;

toolBar.tintColor = UIColor.greenColor()

//添加图片的item

var customImageButtonIte:UIBarButtonItem{

return UIBarButtonItem(image:UIImage(named:"test"), style: .Done, target: self, action: "CustomImageButtonItem");

}