使用WebViewJavascriptBridge实现
1.三方下载：
链接:（https:/pan.baidu.com/s/1mEpIWW7t7XPRplqzVlTmRA 密码:l2a2）
（请手动把https后改为双斜杠）
2.使用代码：(.m文件)
#import "CustomerServiceViewController.h"
#import <WebKit/WebKit.h>
#import "WebViewJavascriptBridge.h"
@interface CustomerServiceViewController ()<WKNavigationDelegate,WKUIDelegate,UIWebViewDelegate>
@property (nonatomic, strong) UIWebView *uiWebView;
@property (nonatomic,strong) WKWebView *wkWebView;
@property (nonatomic,strong) WebViewJavascriptBridge *bridge;
@end
@implementation CustomerServiceViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
self.title = @"客户服务";
self.view.backgroundColor = kWhiteColor;
// [self.view addSubview:self.uiWebView];
[self.view addSubview:self.wkWebView];
// 名称
NSString *name = [GlobelConfig getNullStr:[UserInfo shareInstance].idCardName];
// 手机号
NSString *phone = [GlobelConfig getNullStr:[UserInfo shareInstance].registerPhone];
// token
NSDictionary *TokenDic = [[NSUserDefaults standardUserDefaults]objectForKey:@"loginUserInfoDic"];
NSString *token = [GlobelConfig getNullStr:TokenDic[@"token"]];
// bridge.getUserInfo()
NSDictionary *param = @{@"token":token,@"phone":phone,@"nickname":name};
NSString *jsonStr = [param mj_JSONString];
// 开启日志
[WebViewJavascriptBridge enableLogging];
// 给哪个webview建立JS与OjbC的沟通桥梁
self.bridge = [WebViewJavascriptBridge bridgeForWebView:self.uiWebView];
[self.bridge setWebViewDelegate:self];
// JS主动调用OjbC的方法
// 这是JS会调用getUserIdFromObjC方法，这是OC注册给JS调用的
// JS需要回调，当然JS也可以传参数过来。data就是JS所传的参数，不一定需要传
// OC端通过responseCallback回调JS端，JS就可以得到所需要的数据
[self.bridge registerHandler:@"getUserInfo" handler:^(id data, WVJBResponseCallback responseCallback) {
NSLog(@"js call getUserIdFromObjC, data from js is %@", data);
// 这里的data为JS发送给OC的数据
if (responseCallback) {
// 反馈给JS
responseCallback(param);
}
}];
[self.bridge callHandler:@"getUserInfo" data:jsonStr responseCallback:^(id responseData) {
NSLog(@"from js: %@", responseData);
}];
}
#pragma mark - UIWebView
- (UIWebView *)uiWebView{
if (!_uiWebView) {
self.uiWebView = [[UIWebView alloc] initWithFrame:CGRectMake(0,0, K_SCREEN_WIDTH, K_SCREEN_HEIGHT - KNavHeight - TabbarSafeBottomMargin)];
self.uiWebView.delegate = self;
[self setAutomaticallyAdjustsScrollViewInsets:NO];
NSString *url = @"http://";
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]];
[self.uiWebView loadRequest:request];
}
return _uiWebView;
}
- (void)webViewDidStartLoad:(UIWebView *)webView {
[SVProgressHUD show];
}
- (void)webViewDidFinishLoad:(UIWebView *)webView {
[SVProgressHUD dismiss];
}
#pragma mark - WKWebView
- (WKWebView *)wkWebView{
if (!_wkWebView) {
self.wkWebView = [[WKWebView alloc] initWithFrame:CGRectMake(0,0, K_SCREEN_WIDTH, K_SCREEN_HEIGHT - KNavHeight - TabbarSafeBottomMargin)];
self.wkWebView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth ;
self.wkWebView.contentMode = UIViewContentModeRedraw;
self.wkWebView.opaque = YES;
self.wkWebView.UIDelegate =self;
self.wkWebView.navigationDelegate = self;
self.wkWebView.allowsBackForwardNavigationGestures = YES;
[self setAutomaticallyAdjustsScrollViewInsets:NO];
NSString *url = @"http://";
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]];
[self.wkWebView loadRequest:request];
}
return _wkWebView;
}
// 页面开始加载时调用
- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation {
[SVProgressHUD show];
}
// 页面加载失败时调用
- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error {
[SVProgressHUD dismiss];
}
// 页面加载完成之后调用
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation {
[SVProgressHUD dismiss];
}
- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler
{
NSString *urlStr = [webView.URL absoluteString];
if ([urlStr rangeOfString:@"login"].location != NSNotFound)
{
//[SVProgressHUD dismiss];
decisionHandler(WKNavigationActionPolicyCancel);
}
else if ([urlStr rangeOfString:@"register"].location != NSNotFound)
{
// [SVProgressHUD dismiss];
decisionHandler(WKNavigationActionPolicyCancel);
}
else
{
decisionHandler(WKNavigationActionPolicyAllow);
}
}
#pragma mark - WKUIDelegate
// js交互
- (void)webView:(WKWebView *)webView runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(void))completionHandler
{
NSLog(@"%@",message);
completionHandler();
if ([message isEqualToString:@"back"])
{
[self.navigationController popViewControllerAnimated:YES];
}
}
@end
3.h5的代码：
（参考https:/www。cnblogs。com/iOS-mt/p/10438723.html）
（请手动把https后改为双斜杠，"。"改为"."）
1.iOS代码：
// 1.新建WebView
self.webView = [[UIWebView alloc] initWithFrame:self.view.bounds];
[self.view addSubview:self.webView];
// 2.加载网页
NSString *indexPath = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html"];
NSString *appHtml = [NSString stringWithContentsOfFile:indexPath encoding:NSUTF8StringEncoding error:nil];
NSURL *baseUrl = [NSURL fileURLWithPath:indexPath];
[self.webView loadHTMLString:appHtml baseURL:baseUrl];
// 3.开启日志
[GCWebviewJSBridge setEnableLogging];
// 4.给webView建立JS和OC的沟通桥梁
_bridge = [GCWebviewJSBridge bridgeForWebView:self.webView];
[_bridge setwebViewDelegate:self];
2.JS的准备工作:
之前是只写一套, 发现iOS行了Android又不行了; Android行了iOS又不行了. 最后才知道需要写两套
// 这段代码是固定的，必须要放到js中
function setupWebViewJavascriptBridge(callback) {
//Android
if (window.GCWebviewAndroidJSBridge) {
callback(GCWebviewAndroidJSBridge)
} else {
document.addEventListener(
‘GCWebviewAndroidJSBridgeReady‘
, function() {
callback(GCWebviewAndroidJSBridge)
},
false
);
}
//iOS
if (window.GCWebviewJSBridge) {
return callback(GCWebviewJSBridge);
}
if (window.KBWVJSBCallBacks) {
return window.KBWVJSBCallBacks.push(callback);
}
window.KBWVJSBCallBacks = [callback];
var GCWVJSBIframe = document.createElement(‘iframe‘);
GCWVJSBIframe.style.display = ‘none‘;
GCWVJSBIframe.src = ‘gcwvjsbscheme://__GC_BRIDGE_LOADED__‘;
document.documentElement.appendChild(GCWVJSBIframe);
setTimeout(function() { document.documentElement.removeChild(GCWVJSBIframe) }, 0);
}
iOS注册方法提供给JS调用
[_bridge registerObjCHandler:@"openCamera" handler:^(id data, GCWVJSBResponseCallback responseCallback) {
NSLog(@"需要%@图片", data[@"count"]);
UIImagePickerController *imageVC = [[UIImagePickerController alloc] init];
imageVC.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:imageVC animated:YES completion:nil];
}];
JS调用该方法的代码片段
bridge.callHandler(‘openCamera‘, {‘count‘:‘10张‘}, function responseCallback(responseData) {
console.log("OC中返回的参数:", responseData)
});
JS注册方法提供给iOS调用. (oc 调用 js)
iOS注册提供用户信息方法
/* JS给OC提供公开的API, 在OC中可以手动调用此API, 并且可以接收OC中传过来的参数,同时可回调OC */
// 获取用户信息
bridge.registerHandler(‘getUserInfo‘, function(data, responseCallback) {
console.log("OC中传递过来的参数:", data);
// 把处理好的结果返回给OC
responseCallback({"userID":"DX001", "userName":"旋之华", "age":"18", "otherName":"旋之华"})
});
iOS调用JS中的方法, 获得用户信息
// 调用JS中的API
[self.bridge callHandler:@"getUserInfo" data:@{@"userId":@"DX001"} responseCallback:^(id responseData) {
NSString *userInfo = [NSString stringWithFormat:@"%@,姓名:%@,年龄:%@", responseData[@"userID"], responseData[@"userName"], responseData[@"age"]];
}];
参考文献
（请手动把https后改为双斜杠，"。"改为"."）
https:/www。jianshu。com/p/83f99a02c992
https:/www。jianshu。com/p/d45ce14278c7
https:/blog.csdn.net/cnsxhza985/article/details/20053839?utm_medium=distribute.pc_relevant_bbs_down.none-task--2
https:/www。cnblogs。com/iOS-mt/p/10438723.html
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