ios - MKMapView:偏移贴图，使注解可见
<p><p>我有一个 MapView，底部的补充 View 始终可见。有时，补充 View 会部分阻塞选定的 <em>MKAnnotationView</em>。当以编程方式选择注释时，有什么方法可以将 map 向上移动一点？</p>
<p>我现在使用的代码如下:</p>
<pre><code>mapView.selectAnnotation(selected, animated: true)
mapView.showAnnotations(, animated: true)
</code></pre>
<p> <a href="/image/jyw2q.png" rel="noreferrer noopener nofollow"><img src="/image/jyw2q.png" alt="enter image description here"/></a> </p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>我已经完成的代码:</p>
<pre><code> let coordinate = selected.coordinate
let delta = CLLocationDegrees(0.003)
let span = MKCoordinateSpan(latitudeDelta: delta, longitudeDelta: delta)
let region = MKCoordinateRegion(center: coordinate, span: span)
let rect = MKMapRectForCoordinateRegion(region: region)
// Adjust padding here
let insets = UIEdgeInsets(top: 0, left: 0, bottom: 150, right: 0)
mapView.setVisibleMapRect(rect, edgePadding: insets, animated: true)
// Convert CoordinateRegion to MapRect
func MKMapRectForCoordinateRegion(region:MKCoordinateRegion) -> MKMapRect {
let topLeft = CLLocationCoordinate2D(latitude: region.center.latitude + (region.span.latitudeDelta/2), longitude: region.center.longitude - (region.span.longitudeDelta/2))
let bottomRight = CLLocationCoordinate2D(latitude: region.center.latitude - (region.span.latitudeDelta/2), longitude: region.center.longitude + (region.span.longitudeDelta/2))
let a = MKMapPointForCoordinate(topLeft)
let b = MKMapPointForCoordinate(bottomRight)
return MKMapRect(origin: MKMapPoint(x:min(a.x,b.x), y:min(a.y,b.y)), size: MKMapSize(width: abs(a.x-b.x), height: abs(a.y-b.y)))
}
</code></pre></p>
<p style="font-size: 20px;">关于ios - MKMapView:偏移贴图，使注解可见，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/51246045/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/51246045/
</a>
</p>
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