我在Google（ https://code.google.com/p/gmaps-api-issues/issues/detail？ id = 10349 ），这是他们的回应：

I opened a bug on this issue with Google (https://code.google.com/p/gmaps-api-issues/issues/detail?id=10349), and this was their response:

我们的理解是，发生这种情况是因为mapView：willMove：已在CoreAnimation事务中进行调用。我们建议的解决方法是将UIView.animateWithDuration调用包装在dispatch_async中，回到主线程。类似于以下内容：

Our understanding is that this is happening because the mapView:willMove: call is being made while already inside a CoreAnimation transaction. Our suggested work around is to wrap the UIView.animateWithDuration call within a dispatch_async back to the main thread. Something along the lines of:

dispatch_async（dispatch_get_main_queue（），^ {
//此处的动画块。
}）;

dispatch_async(dispatch_get_main_queue(), ^{ // animation block here. });

有帮助吗？

将UIView.animateWithDuration块放置在dispatch_async块中对于我。

Placing the UIView.animateWithDuration block inside a dispatch_async block worked for me.