修复ios打开第三方APP，判断能否打开bug

lib/util/turn_chain/turn_chain_util.dart

@@ -104,9 +104,10 @@ class TurnChainUtil {
         case GlobalConfig.PROVIDER_PDD:
         case GlobalConfig.PROVIDER_SN:
         case GlobalConfig.PROVIDER_VIP:
-          if (!EmptyUtil.isEmpty(appUrl) && await canLaunch(appUrl)) {
-            Logger.log('打开${provider} app, url = ${appUrl}');
-            launch(appUrl);
+          print(await canLaunch(appUrl));
+          bool launchable = await launch(appUrl);
+          if (launchable) {
+            // Logger.log('打开${provider} app, url = ${appUrl}');
           } else if (!EmptyUtil.isEmpty(webUrl)) {
             Logger.log('打开${provider} webUrl, url = ${webUrl}');
             RouterUtil.openWebview(webUrl, context);