公司接下來(lái)的項(xiàng)目需要用swift內(nèi)嵌h5來(lái)實(shí)現(xiàn), 以前沒(méi)有做過(guò)swift項(xiàng)目, 現(xiàn)在慢慢將所學(xué)的一點(diǎn)一滴記錄一下 一個(gè)是怕自己忘了- =, 再就是希望大家看到能幫助我哈哈哈
前幾天想要直接用swift上手- =發(fā)現(xiàn)連初始化什么的都給忘記了, 又乖乖回去先用OC簡(jiǎn)單的做了一個(gè)webView的界面
效果如下:

接下來(lái), 我就一點(diǎn)點(diǎn)的把OC的代碼用swift編寫了

import UIKit
//要導(dǎo)入JavaScriptCore.framework庫(kù)
import JavaScriptCore

//在此簽訂UIWebViewDelegate協(xié)議
class ViewController: UIViewController, UIWebViewDelegate {
    //輸入框
    var textFiled = UITextField.init()
    var webView = UIWebView.init()
    

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.   
        
        //初始化textfield
        textFiled.frame = CGRectMake(20, 40, 260, 30)
        textFiled.borderStyle = .Bezel
        textFiled.clearButtonMode = .WhileEditing
        textFiled.backgroundColor = UIColor.whiteColor()
        self.view.addSubview(textFiled)

        //開始運(yùn)行btn
        let btn = UIButton.init(frame: CGRectMake(290, 40, 30, 30))
        btn.setTitle("GO", forState: UIControlState.Normal)
        btn.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal)
        btn.addTarget(self, action: #selector(ViewController.btnAction(_:)), forControlEvents: UIControlEvents.TouchUpInside)
        self.view.addSubview(btn)
        
        //后退btn
        let backBtn = UIButton.init(frame: CGRectMake(btn.frame.origin.x + 40, btn.frame.origin.y, 30, 30))
        backBtn.setTitle("<", forState: UIControlState.Normal)
        backBtn.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal)
        backBtn.addTarget(self, action: #selector(ViewController.backBtnAction(_:)), forControlEvents: UIControlEvents.TouchUpInside)
        self.view.addSubview(backBtn)
        
        //前進(jìn)btn
        let forwardBtn = UIButton.init(frame: CGRectMake(backBtn.frame.origin.x + 40, backBtn.frame.origin.y, 30, 30))
        forwardBtn.setTitle(">", forState: UIControlState.Normal)
        forwardBtn.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal)
        forwardBtn.addTarget(self, action: #selector(ViewController.forwardBtnAction(_:)), forControlEvents: UIControlEvents.TouchUpInside)
        self.view.addSubview(forwardBtn)
        
        
        webView.frame = CGRectMake(0, 80, UIScreen.mainScreen().bounds.width, UIScreen.mainScreen().bounds.height - 80)
        webView.backgroundColor = UIColor.lightGrayColor()
        self.view.addSubview(webView)
        
 
        //設(shè)置代理(不要忘記!如果不設(shè)置就無(wú)法調(diào)用webView的代理方法)
        webView.delegate = self

    
    }
    /**
     * parameters就是參數(shù)茁计，return type是返回類型
 
       func <#name#>(<#parameters#>) -> <#return type#> {
             <#function body#>
        }
    */
    func btnAction(btn:UIButton){
        //加載textfield中的網(wǎng)址
        let request = NSURLRequest.init(URL: NSURL.init(string: "http://" + textFiled.text!)!)
        webView.loadRequest(request)
        
    }

    func backBtnAction(backBtn:UIButton) {
        webView.goBack()
    }
    
    func forwardBtnAction(forwardBtn:UIButton)  {
        webView.goForward()
    }
    
    /**
      *網(wǎng)頁(yè)加載完成調(diào)用此方法
      */
    func webViewDidFinishLoad(webView: UIWebView) {
        //調(diào)用提示框方法
        setAlertShow()
        
    }
    
    //顯示提示框
    func setAlertShow() {
        
        let jsString = String(format:"alert(123)")
        print(jsString)
        //交互
        webView.stringByEvaluatingJavaScriptFromString(jsString)
       
    }

運(yùn)行效果如下:

swift版webView.gif