ViewController.m中调用本地index.html文件,代码如下:
#import "ViewController.h"
#import <WebKit/WebKit.h>
@interface ViewController () <WKUIDelegate,WKNavigationDelegate,WKScriptMessageHandler>
@property (nonatomic, strong) WKWebView *webView;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
WKWebViewConfiguration *config = [[WKWebViewConfiguration alloc] init];
config.preferences.minimumFontSize = 18;
_webView.multipleTouchEnabled = YES;
_webView.allowsBackForwardNavigationGestures = YES;
_webView.navigationDelegate = self;
_webView.UIDelegate = self;
self.webView = [[WKWebView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height/2) configuration:config];
[self.view addSubview:self.webView];
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html"];
NSURL *baseURL = [[NSBundle mainBundle] bundleURL];
[self.webView loadHTMLString:[NSString stringWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:nil] baseURL:baseURL];
WKUserContentController *userCC = config.userContentController;
// JS调用OC添加处理脚本
[userCC addScriptMessageHandler:self name:@"showMobile"];
[userCC addScriptMessageHandler:self name:@"showName"];
[userCC addScriptMessageHandler:self name:@"showSendMsg"];
}
// 网页加载完成之后调用JS代码才会执行，因为这个时候html页面已经注入到webView中并且可以响应到对应方法
- (IBAction)btnClick:(UIButton *)sender {
if (!self.webView.loading) {
// 调用网页中alertMobile()方法
if (sender.tag == 123) {
[self.webView evaluateJavaScript:@"alertMobile()" completionHandler:^(id _Nullable response, NSError * _Nullable error) {
NSLog(@"response is:%@ %@",response,error);
}];
}
// 调用网页中alertName(msg)方法
if (sender.tag == 234) {
[self.webView evaluateJavaScript:@"alertName('小红')" completionHandler:nil];
}
// 调用网页中alertSendMsg(num,msg)方法
if (sender.tag == 345) {
[self.webView evaluateJavaScript:@"alertSendMsg('18870707070','周末爬山真是件愉快的事情')" completionHandler:nil];
}
} else {
NSLog(@"the view is currently loading content");
}
}
#pragma mark - WKScriptMessageHandler
- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message {
NSLog(@"name = %@,body = %@",message.name ,message.body);
/*
判断传过来的message.name是否等于showMobile,如果是就执行网页中这个方法function btnClick1() {
window.webkit.messageHandlers.showMobile.postMessage(null)
}
**/
if ([message.name isEqualToString:@"showMobile"]) {
[self showMsg:@"我是下面的小红 手机号是:18870707070"];
}
/*
判断传过来的message.name是否等于showName,如果是就执行网页中这个方法function btnClick2() {
window.webkit.messageHandlers.showName.postMessage(null)
}
**/
if ([message.name isEqualToString:@"showName"]) {
NSString *info = [NSString stringWithFormat:@"你好 %@, 很高兴见到你",message.body];
[self showMsg:info];
}
/*
判断传过来的message.name是否等于showSendMsg,如果是就执行网页中这个方法function btnClick3() {
window.webkit.messageHandlers.showSendMsg.postMessage(null)
}
**/
if ([message.name isEqualToString:@"showSendMsg"]) {
NSArray *array = message.body;
NSString *info = [NSString stringWithFormat:@"这是我的手机号: %@, %@ !!",array.firstObject,array.lastObject];
[self showMsg:info];
}
}
- (void)showMsg:(NSString *)msg {
[[[UIAlertView alloc] initWithTitle:nil message:msg delegate:nil cancelButtonTitle:nil otherButtonTitles:@"OK", nil] show];
}
// 调用网页中clear()方法
- (IBAction)clear:(id)sender {
[self.webView evaluateJavaScript:@"clear()" completionHandler:nil];
}
@end
index.html代码如下:
<html>
<!--描述网页信息-->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>小黄</title>
<style>
*{
font-size: 50px;
}
.btn{height:80px; width:80%; padding: 0px 30px; background-color: #0071E7; border: solid 1px #0071E7; border-radius:5px; font-size: 1em; color: white}
</style>
<script>
function clear() {
document.getElementById('mobile').innerHTML = ''
document.getElementById('name').innerHTML = ''
document.getElementById('msg').innerHTML = ''
}
// OC调用JS的方法列表
function alertMobile() {
// 这里已经调用过来了
// alert('我是上面的小黄 手机号是:13300001111')
document.getElementById('mobile').innerHTML = '我是上面的小黄 手机号是:13300001111'
}
function alertName(msg) {
// alert('你好 ' + msg + ', 我也很高兴见到你')
document.getElementById('name').innerHTML = '你好 ' + msg + ', 我也很高兴见到你'
}
function alertSendMsg(num,msg) {
// window.alert('这是我的手机号:' + num + ',' + msg + '!!')
document.getElementById('msg').innerHTML = '这是我的手机号:' + num + ',' + msg + '!!'
}
// JS响应方法列表,这是与原生进行互动的关键,showMobile就是传递的方法名
function btnClick1() {
window.webkit.messageHandlers.showMobile.postMessage(null)
}
function btnClick2() {
window.webkit.messageHandlers.showName.postMessage('xiao黄')
}
function btnClick3() {
window.webkit.messageHandlers.showSendMsg.postMessage(['13300001111', 'Go Climbing This Weekend !!!'])
}
</script>
</head>
<!--网页具体内容-->
<body>
<br/>
<div>
<label>小黄：13300001111</label>
</div>
<br/>
<div id="mobile"></div>
<div>
<button class="btn" type="button" onclick="btnClick1()">小红的手机号</button>
</div>
<br/>
<div id="name"></div>
<div>
<button class="btn" type="button" onclick="btnClick2()">打电话给小红</button>
</div>
<br/>
<div id="msg"></div>
<div>
<button class="btn" type="button" onclick="btnClick3()">发短信给小红</button>
</div>
</body>
</html>
图
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