以下代码对我最近完成的iOS应用程序很重要:
var closestLocation: CLLocation?
var smallestDistance: CLLocationDistance?
for location in locations {
let distance = currentLocation.distanceFromLocation(location)
if smallestDistance == nil || distance < smallestDistance {
closestLocation = location
smallestDistance = distance
}
}
我的问题很简单:这段代码在Java for Android Studio中的外观如何?
这是我第一次在Java和Android Studio上运行,因此将不胜感激。
最佳答案
您应该考虑使用Location类。它用于存储纬度和经度中的位置。它还具有用于计算点之间距离的预定义功能-distanceBetween()
。
Location closestLocation;
int smallestDistance = -1;
假设位置是
ArrayList<Location>()
for(Location location : locations){
int distance = Location.distanceBetween(closestLocation.getLatitude(),
closestLocation.getLongitude(),
location.getLatitude(),
location.getLongitude());
if(smallestDistance == -1 || distance < smallestDistance){
closestLocation = location;
smallestDistance = distance;
}
}