易采站长站为您分析Swift使用WKWebView在iOS应用中调用Web的方法详解,使用WKWebView便等于使用和Safari中相同的JavaScript解释器,用来替代过去的UIWebView,需要的朋友可以参考下
#import <WebKit/WebKit.h>
(2)初始化方法分为以下两种
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// 默认初始化
- (instancetype)initWithFrame:(CGRect)frame;
// 根据对webview的相关配置,进行初始化
- (instancetype)initWithFrame:(CGRect)frame configuration:(WKWebViewConfiguration *)configuration NS_DESIGNATED_INITIALIZER;
(3)加载网页与HTML代码的方式与UIWebView相同,代码如下:
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WKWebView *webView = [[WKWebView alloc] initWithFrame:self.view.bounds];
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.easck.com/> [self.view addSubview:webView];
// 页面开始加载时调用
- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation;
// 当内容开始返回时调用
- (void)webView:(WKWebView *)webView didCommitNavigation:(WKNavigation *)navigation;
// 页面加载完成之后调用
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation;
// 页面加载失败时调用
- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation;
页面跳转的代理方法有三种,分为(收到跳转与决定是否跳转两种)
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// 接收到服务器跳转请求之后调用
- (void)webView:(WKWebView *)webView didReceiveServerRedirectForProvisionalNavigation:(WKNavigation *)navigation;
// 在收到响应后,决定是否跳转
- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler;
// 在发送请求之前,决定是否跳转
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler;
自从iOS8开始,Apple引入了WKWebView欲代替UIWebView。相比而言,WKWebView消耗内从更少,功能也更加强大。让我们来看看WKWebView怎么使用吧!
0.初始化
(1)首先需要引入WebKit库
#import <WebKit/WebKit.h>
(2)初始化方法分为以下两种
复制代码
// 默认初始化
- (instancetype)initWithFrame:(CGRect)frame;
// 根据对webview的相关配置,进行初始化
- (instancetype)initWithFrame:(CGRect)frame configuration:(WKWebViewConfiguration *)configuration NS_DESIGNATED_INITIALIZER;
(3)加载网页与HTML代码的方式与UIWebView相同,代码如下:
复制代码
WKWebView *webView = [[WKWebView alloc] initWithFrame:self.view.bounds];
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.easck.com/> [self.view addSubview:webView];
1. WKWebView的代理方法
(1) WKNavigationDelegate
该代理提供的方法,可以用来追踪加载过程(页面开始加载、加载完成、加载失败)、决定是否执行跳转。
// 页面开始加载时调用
- (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(WKNavigation *)navigation;
// 当内容开始返回时调用
- (void)webView:(WKWebView *)webView didCommitNavigation:(WKNavigation *)navigation;
// 页面加载完成之后调用
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation;
// 页面加载失败时调用
- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation;
页面跳转的代理方法有三种,分为(收到跳转与决定是否跳转两种)
复制代码
// 接收到服务器跳转请求之后调用
- (void)webView:(WKWebView *)webView didReceiveServerRedirectForProvisionalNavigation:(WKNavigation *)navigation;
// 在收到响应后,决定是否跳转
- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler;
// 在发送请求之前,决定是否跳转
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler;








