本文内容如标题，会涉及到H5调原生支付以及在微信、支付宝支付后跳转回本APP内容
1、H5调起微信、支付宝APP支付
2、支付成功或失败后的回调
首先需要再项目工程配置URL Types，路径“info->URL Types”，如图所示
项目工程文件.png
添加后info.plist文件的URL Types所得如图所示
URLTypes.png
微信的URL Schemes里面添加的必须为微信开放平台H5支付的域名，格式为xxx.###.com(大概如此具体问H5开发要)，然后再添加下面代码
H5调起微信、支付宝支付原理都一样，都是在WKNavigationDelegate代理方法进行操作
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler{}
不同的是微信需要判断“weixin://"而支付宝需要判断"alipays://" 、"alipay://"，具体代码如下：
微信
if (![scheme isEqualToString:@"https"] && ![scheme isEqualToString:@"http"]) {
decisionHandler(WKNavigationActionPolicyCancel);
if ([scheme isEqualToString:@"weixin"]) {
if (endPayRedirectURL) {
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[endPayRedirectURL stringByRemovingPercentEncoding]] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30]];
}
}
if ([navigationAction.request.URL.absoluteString hasPrefix:@"weixin://"]) {
[[UIApplication sharedApplication] openURL:navigationAction.request.URL];
}
return;
}
其中“ endPayRedirectURL”是微信支付完成或者失败后回调需要用到的
微信处理回调其实就是将传给微信redirect_url拼接上APP的URL Types所配置的URL Schemes，如果没有传的直接拼接，传了的需要替换，具体方法如下
if ([reqUrl hasPrefix:@"https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb"] && ![reqUrl hasSuffix:[NSString stringWithFormat:@"redirect_url=%@://",CompanyFirstDomainByWeChatRegister]]) {
decisionHandler(WKNavigationActionPolicyCancel);
NSString *redirectUrl = nil;
if ([reqUrl containsString:@"redirect_url="]) {
NSRange redirectRange = [reqUrl rangeOfString:@"redirect_url"];
endPayRedirectURL = [reqUrl substringFromIndex:redirectRange.location+redirectRange.length+1];
redirectUrl = [[reqUrl substringToIndex:redirectRange.location] stringByAppendingString:[NSString stringWithFormat:@"redirect_url=%@://",CompanyFirstDomainByWeChatRegister]];
}else {
redirectUrl = [reqUrl stringByAppendingString:[NSString stringWithFormat:@"&redirect_url=%@://",CompanyFirstDomainByWeChatRegister]];
}
NSMutableURLRequest *newRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:redirectUrl] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30];
newRequest.allHTTPHeaderFields = navigationAction.request.allHTTPHeaderFields;
[newRequest setValue:[NSString stringWithFormat:@"%@",CompanyFirstDomainByWeChatRegister] forHTTPHeaderField:@"Referer"];
newRequest.URL = [NSURL URLWithString:redirectUrl];
[webView loadRequest:newRequest];
return;
}
支付宝
if ([reqUrl hasPrefix:@"alipays://"] || [reqUrl hasPrefix:@"alipay://"]) {
NSURL* alipayURL = [self changeURLSchemeStr:reqUrl];
if (@available(iOS 10.0, *)) {
[[UIApplication sharedApplication] openURL:alipayURL options:@{UIApplicationOpenURLOptionUniversalLinksOnly: @NO} completionHandler:^(BOOL success) {
}];
} else {
[[UIApplication sharedApplication] openURL:alipayURL];
}
}
支付处理支付成功回调需要用到两个方法更改fromAppUrlScheme直接copy就可以
-(NSURL*)changeURLSchemeStr:(NSString*)urlStr{
NSString* tmpUrlStr = urlStr.copy;
if([urlStr containsString:@"fromAppUrlScheme"]) {
tmpUrlStr = [tmpUrlStr stringByRemovingPercentEncoding];
NSDictionary* tmpDic = [self dictionaryWithUrlString:tmpUrlStr];
NSString* tmpValue = [tmpDic valueForKey:@"fromAppUrlScheme"];
tmpUrlStr = [[tmpUrlStr stringByReplacingOccurrencesOfString:tmpValue withString:@"你自己的scheme"] mutableCopy];
tmpUrlStr = [[tmpUrlStr stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]] mutableCopy];
}
NSURL * newURl = [NSURL URLWithString:tmpUrlStr];
return newURl;
}
-(NSDictionary*)dictionaryWithUrlString:(NSString*)urlStr{
if(urlStr && urlStr.length&& [urlStr rangeOfString:@"?"].length==1) {
NSArray *array = [urlStr componentsSeparatedByString:@"?"];
if(array && array.count==2) {
NSString*paramsStr = array[1];
if(paramsStr.length) {
NSString* paramterStr = [paramsStr stringByRemovingPercentEncoding];
NSData *jsonData = [paramterStr dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *responseDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableLeaves error:nil];
return responseDic;
}
}
}
return nil;
}
整个WKNavigationDelegate代码如下
#pragma mark - WKNavigationDelegate
static const NSString * CompanyFirstDomainByWeChatRegister = @"xxx.###.com";
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler{
NSString * reqUrl = navigationAction.request.URL.absoluteString;
NSString * scheme = [navigationAction.request.URL scheme];
///打电话
if ([scheme isEqualToString:@"tel"]) {
NSString *resourceSpecifier = [navigationAction.request.URL resourceSpecifier];
NSString *callPhone = [NSString stringWithFormat:@"telprompt:%@", resourceSpecifier];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:callPhone]];
}
/// 支付宝
if ([reqUrl hasPrefix:@"alipays://"] || [reqUrl hasPrefix:@"alipay://"]) {
NSURL* alipayURL = [self changeURLSchemeStr:reqUrl];
if (@available(iOS 10.0, *)) {
[[UIApplication sharedApplication] openURL:alipayURL options:@{UIApplicationOpenURLOptionUniversalLinksOnly: @NO} completionHandler:^(BOOL success) {
}];
} else {
[[UIApplication sharedApplication] openURL:alipayURL];
}
}
/// 微信
if ([reqUrl hasPrefix:@"https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb"] && ![reqUrl hasSuffix:[NSString stringWithFormat:@"redirect_url=%@://",CompanyFirstDomainByWeChatRegister]]) {
decisionHandler(WKNavigationActionPolicyCancel);
NSString *redirectUrl = nil;
if ([reqUrl containsString:@"redirect_url="]) {
NSRange redirectRange = [reqUrl rangeOfString:@"redirect_url"];
endPayRedirectURL = [reqUrl substringFromIndex:redirectRange.location+redirectRange.length+1];
redirectUrl = [[reqUrl substringToIndex:redirectRange.location] stringByAppendingString:[NSString stringWithFormat:@"redirect_url=%@://",CompanyFirstDomainByWeChatRegister]];
}else {
redirectUrl = [reqUrl stringByAppendingString:[NSString stringWithFormat:@"&redirect_url=%@://",CompanyFirstDomainByWeChatRegister]];
}
NSMutableURLRequest *newRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:redirectUrl] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30];
newRequest.allHTTPHeaderFields = navigationAction.request.allHTTPHeaderFields;
[newRequest setValue:[NSString stringWithFormat:@"%@",CompanyFirstDomainByWeChatRegister] forHTTPHeaderField:@"Referer"];
newRequest.URL = [NSURL URLWithString:redirectUrl];
[webView loadRequest:newRequest];
return;
}
if (![scheme isEqualToString:@"https"] && ![scheme isEqualToString:@"http"]) {
decisionHandler(WKNavigationActionPolicyCancel);
if ([scheme isEqualToString:@"weixin"]) {
if (endPayRedirectURL) {
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[endPayRedirectURL stringByRemovingPercentEncoding]] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30]];
}
}
if ([navigationAction.request.URL.absoluteString hasPrefix:@"weixin://"]) {
[[UIApplication sharedApplication] openURL:navigationAction.request.URL];
}
return;
}
decisionHandler(WKNavigationActionPolicyAllow);
}
如需改正还望不吝赐教