Google Maps SDK iOS - 防止地图在缩放时更改位置 [英] Google Maps SDK iOS - prevent map from changing location on zoom

问题描述

我有一个问题，我有一段时间无法解决。

I have a problem that I can't solve for some time.

我在它前面有一个带有imageView的GMSMapView。结果 - 我可以拖动地图并始终有中心针。但是当我缩放地图时会出现问题。
在缩放时 - 地图目标的位置发生变化，我的imageView指向另一个位置。

I have a GMSMapView with imageView in front of it in the center. In result - I can drag map and always have centered pin. But problems come when I zoom the map. On zooming - position of map target changes and my imageView points to another location.

我可以检测到缩放是否发生变化，但我实际上无法强制GMSMapView执行此操作只有缩放，没有任何位置变化。

I can detect if zoom changed, but I cant actually force GMSMapView to do ONLY zoom without any location changing.

-(void) mapView:(GMSMapView *)mapView didChangeCameraPosition:(GMSCameraPosition *)position
{
    if (mZoomLevel != mapView.camera.zoom)
    {
        mZoomLevel = mapView.camera.zoom;
    }
}

所以基本上，我想要总是居中的针脚，即使我进行变焦。
我尝试过GMSMarker - 但是在关注地图中心时遇到了性能问题。它没有立即执行，所以我决定使用imageView。

So basically, I want to have always centered pin, even if I perform zoom. I tried GMSMarker - but it has problems with performance when following map center. It doesn't do it instantly, so I decided to use imageView.

主要问题：如何在执行缩放时锁定地图的当前位置？

Main question: how to lock current location of the map while performing zoom?

推荐答案

Google用谷歌地图sdk 1.10.0解决了这个问题。

Google fixed this issue with google maps sdk 1.10.0.

解决方案是在配置GMSMapview时简单地添加这一行：

The solution is to simply add this line when configuring GMSMapview:

_mapView.settings.allowScrollGesturesDuringRotateOrZoom = NO;

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