[@nativescript/google-maps] Marker info window not working on IOS

Hi, I tried to use custom marker info window.
First of all, Could you let me know proper way to implement this, since there is not clear instruction from documentation.
Anyway, I implemented like this, at least works on Android.

mapView.on('markerInfoWindow', (e: MarkerInfoEvent) => {
if (e.marker.userData.id === item.id) {
let infoTemplate: GridLayout = new GridLayout();
/* create a view that I want to customize manually */
...

e.view = infoTemplate;

});

marker.showInfoWindow();

At least works on Android but not on IOS.
Title & snippet from MarkerOptions, then IOS show the info on the marker.

先在 iOS 上重現 @nativescript/google-maps 中自訂的 markerInfoWindow 流程，並將其與所述的 Android 行為進行比較。檢查呼叫 marker.showInfoWindow() 時如何處理 e.view。完成標準是：iOS 上顯示自訂資訊視窗，同時現有的 title 和 snippet 行為維持不變。