如何适应协调与谷歌地图SDK阵列的iOS界限？(How to fit bounds for coor

如何适应协调与谷歌地图SDK阵列的iOS界限？我需要放大地图4个可见的标记。

Answer 1:

下面是我对这个问题的解决方案。构建GMSCoordinateBounds由多个坐标对象。

- (void)focusMapToShowAllMarkers
{       
    CLLocationCoordinate2D myLocation = ((GMSMarker *)_markers.firstObject).position;
    GMSCoordinateBounds *bounds = [[GMSCoordinateBounds alloc] initWithCoordinate:myLocation coordinate:myLocation];

    for (GMSMarker *marker in _markers)
        bounds = [bounds includingCoordinate:marker.position];

    [_mapView animateWithCameraUpdate:[GMSCameraUpdate fitBounds:bounds withPadding:15.0f]];
}

更新的答案 ：由于GMSMapView 标记属性已过时，应保存所有标记在自己的阵列。

更新迅速的3答案：

    func focusMapToShowAllMarkers() {
        let firstLocation = (markers.first as GMSMarker).position
        var bounds = GMSCoordinateBoundsWithCoordinate(firstLocation, coordinate: firstLocation)

        for marker in markers {
            bounds = bounds.includingCoordinate(marker.position)
        }
        let update = GMSCameraUpdate.fitBounds(bounds, withPadding: CGFloat(15))
        self.mapView.animate(cameraUpdate: update)
  }

Answer 2:

雨燕3.0的版本Lirik的回答：

func focusMapToShowAllMarkers() {
    let myLocation: CLLocationCoordinate2D = self.markers.first!.position
    var bounds: GMSCoordinateBounds = GMSCoordinateBounds(coordinate: myLocation, coordinate: myLocation)

    for marker in self.markers {
        bounds = bounds.includingCoordinate(marker.position)
        self.mapView.animate(with: GMSCameraUpdate.fit(bounds, withPadding: 15.0))
    }
}

下面是我自己的方式：

func focusMapToShowMarkers(markers: [GMSMarker]) {

    guard let currentUserLocation = self.locationManager.location?.coordinate else {
        return
    }

    var bounds: GMSCoordinateBounds = GMSCoordinateBounds(coordinate: currentUserLocation,
                                                          coordinate: currentUserLocation)

    _ = markers.map {
        bounds = bounds.includingCoordinate($0.position)
        self.mapView.animate(with: GMSCameraUpdate.fit(bounds, withPadding: 15.0))
    }
}

你也可以拨打上面，像这样我的功能：

self.focusMapToShowMarkers(markers: [self.myLocationMarker, currentPokemonMarker])