iOS H5嵌套打电话功能实现

在ios中，用H5编写了可以打电话的页面。点击“拨打”按钮后可以进行跳转到打电话的页面（跳转这一块应该是和浏览器有关），跳转之后拨打完电话能够回到之前打电话的页面。

第一步：其实就是发送了一个get请求，url就是：tel:13587454758；与h5交互：获取到电话号码（URL）；

第二步：[self openUrl:url];

第三步：

-(void)openUrl:(NSString *)urlStr{

NSURL *url = [NSURL URLWithString:urlStr];

UIApplication *application = [UIApplication sharedApplication];

if (![application canOpenURL:url]) {

NSLog(@"无法打开\"%@\"， 请确保此应用正确安装", url);

}else

[[UIApplication sharedApplication]openURL:url];

}

获取网页url方式：

1.UIWebView

方法1：NSString *location =[webViewstringByEvaluatingJavaScriptFromString:@"document.location"]；

方法2：NSLog(@"webView location = '%@'", webView.request.URL.absoluteString);

以上两种一定要放在页面成功加载之后才可以的！

- (void)webViewDidFinishLoad:(UIWebView *)webView {

NSString*currentURL = [webView stringByEvaluatingJavaScriptFromString:@"document.location.href"];

}

- (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request

navigationType:(UIWebViewNavigationType)navigationType {

// 判断是否是单击

if (navigationType == UIWebViewNavigationTypeLinkClicked) {

NSString *currentURL= myWebView.request.URL.absoluteString;

NSLog(@"你单击的网址是：%@", currentURL);

}

return YES;

}

2.WKWebview

#pragma mark 在发送请求之前，决定是否跳转

- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {

//    NSLog(@"%s",__FUNCTION__);

/**

*typedef NS_ENUM(NSInteger, WKNavigationActionPolicy) {

WKNavigationActionPolicyCancel, // 取消

WKNavigationActionPolicyAllow,  // 继续

}

*/

NSString *reqUrl = [navigationAction.request.URL.absoluteString stringByRemovingPercentEncoding];

decisionHandler(WKNavigationActionPolicyAllow);

}