NSString* methodNameStr=[NSString stringWithFormat:@"device_callback(%d,\"%@\")",[@"6001" isEqualToString:@"6001"]?-1:-2,[@"6001" isEqualToString:@"6001"]?@"支付取消":@"支付失敗"];

如果在通知方法里直接調(diào)用

[weakSelf.webView stringByEvaluatingJavaScriptFromString:methodNameStr];

會(huì)彈出alert? 但是點(diǎn)擊不了

所以不能這樣寫(xiě)

NSString *jsMyAlert =[NSString stringWithFormat:@"setTimeout(function(){%@;},1)",methodNameStr];

[weakSelf.webView stringByEvaluatingJavaScriptFromString:jsMyAlert];