ios跳转到系统wifi页面操作方法

原有方法在ios 10已经失效

 NSURL *url1 = [NSURL URLWithString:@"prefs:root=WIFI"];

       if ([[UIApplication sharedApplication] canOpenURL:url1])

        {

            [[UIApplication sharedApplication] openURL:url1];

       }

有效方法1:

        NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];

        if ([[UIApplication sharedApplication] canOpenURL:url]) {

           [[UIApplication sharedApplication] openURL:url];

       }

有效方法2:

 NSURL *url1 = [NSURL URLWithString:@"App-prefs:root=WIFI"];

       if ([[UIApplication sharedApplication] canOpenURL:url1])

        {

            [[UIApplication sharedApplication] openURL:url1];

       }