I am using MapView and this map have many markers.
How to enable the Zoom to be set automatically to how all markers in the map ?
你们必须获得构成含有所有标识的束缚的四角。 接着,在你迁至该地区中心时,将海隆包括在内。 如果是这样的话,是有意义的。 见以下守则。
int minLat = Integer.MAX_VALUE;
int maxLat = Integer.MIN_VALUE;
int minLon = Integer.MAX_VALUE;
int maxLon = Integer.MIN_VALUE;
for (GeoPoint item : items)
{
int lat = item.getLatitudeE6();
int lon = item.getLongitudeE6();
maxLat = Math.max(lat, maxLat);
minLat = Math.min(lat, minLat);
maxLon = Math.max(lon, maxLon);
minLon = Math.min(lon, minLon);
}
double fitFactor = 1.5;
mapController.zoomToSpan((int) (Math.abs(maxLat - minLat) * fitFactor), (int)(Math.abs(maxLon - minLon) * fitFactor));
mapController.animateTo(new GeoPoint( (maxLat + minLat)/2,
(maxLon + minLon)/2 ));
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