MapView 加载后如何为其设置动画？

发布于 2024-09-10 05:43:19 字数 473 浏览 0 评论 0原文

有人可以帮我使用动画加载地图吗？我正在尝试加载 MapView。我希望它在视图加载后缩放到我的位置。我正在尝试这个：

- (void)viewDidAppear {
[super viewDidAppear:TRUE];
MKCoordinateRegion region;
CLLocationCoordinate2D location=secondMap.userLocation.coordinate;
MKCoordinateSpan span;
location.latitude=40.443242;
location.longitude=-79.94305;
region.span=span;
region.center=location;
[secondMap setRegion:region animated:TRUE];}

此代码似乎不起作用。当我尝试 viewDidLoad 时，位置已经在那里，我认为这是预期的。

谢谢。

原文

Could someone please help me with loading maps using animation? I am trying to load a MapView. I want it to zoom to my place once the view loads. I am trying this:

- (void)viewDidAppear {
[super viewDidAppear:TRUE];
MKCoordinateRegion region;
CLLocationCoordinate2D location=secondMap.userLocation.coordinate;
MKCoordinateSpan span;
location.latitude=40.443242;
location.longitude=-79.94305;
region.span=span;
region.center=location;
[secondMap setRegion:region animated:TRUE];}

This code does not seem to work. When I tried, viewDidLoad, the location was already there, which I think is expected.

Thanks.

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