WKWebView的简单使用
真的是超级简单的是使用哟：
（1）先加一个私有方法：便于直接调用，如果你只是单纯的显示一个HTML，这个就可以了
#pragma mark - Private Methods
- (void)loadWebView:(WKWebView *)webView withURL:(NSURL *)url
{
DDLogDebug(@"<%@> %@ ", NSStringFromClass(self.class), NSStringFromSelector(_cmd));
if (!url || ![UIApplication.sharedApplication canOpenURL:url]) {
return;
}
[webView loadRequest:[NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:[NSURLRequest new].timeoutInterval]];
}
(2)如果是在加载网页的时候加上什么loading啊这些，就要delegate啦：
self.WebView.navigationDelegate = self;
self.WebView.UIDelegate = self;
（3）delegate：
#pragma mark WKUIDelegate
- (WKWebView *)webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures
{
if (![navigationAction.targetFrame isMainFrame]) {
[self loadWebView:webView withURL:navigationAction.request.URL];
}
return nil;
}
- (void)webViewDidClose:(WKWebView *)webView {
NSLog(@"webViewDidClose");
}
#pragma mark WKNavigationDelegate
-(void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler{
for (NSString *itunesLinkPrefix in kItunesLinkPrefixList) {
if ([navigationAction.request.URL.absoluteString hasPrefix:itunesLinkPrefix]) {
DISMISS_LOADING
break;
}
}
// if (self.validatedRequest || navigationAction.navigationType != WKNavigationTypeLinkActivated) {
decisionHandler(WKNavigationActionPolicyAllow);
// }
self.originalUrl = navigationAction.request.URL;
// [self loadWebView:webView withURL:self.originalUrl];
}
- (void)webView:(WKWebView *)webView didCommitNavigation:(null_unspecified WKNavigation *)navigation {
SHOW_LOADING;
NSLog(@"load start ");
}
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation {
DISMISS_LOADING;
NSLog(@"load finish");
self.validatedRequest = NO;
//
NSString *currentURL = self.originalUrl.absoluteString;
if (currentURL) {
if (![self.documentWebViewHistoryList.lastObject isEqualToString:currentURL]) {
[self.documentWebViewHistoryList addObject:currentURL];
}
}
DDLogDebug(@"<%@> %@ URL: %@\ndocumentWebViewHistoryList: %@", NSStringFromClass(self.class), NSStringFromSelector(_cmd), currentURL, self.documentWebViewHistoryList);
if ([self.documentWebViewHistoryList count] > 1) {
[self.goBackButton setEnabled:YES];
}
else {
[self.goBackButton setEnabled:NO];
}
[[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"WebKitCacheModelPreferenceKey"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error {
DDLogDebug(@"<%@> %@ ", NSStringFromClass(self.class), NSStringFromSelector(_cmd));
NSLog(@"URL loading fail,%@",error.debugDescription);
// DISMISS_LOADING
// [self showAlertView];
}