Android Distance Calculate getClosestStore(ArrayList storeIds, SparseArray distanceMap)

Description

get Closest Store

Declaration

public static int getClosestStore(ArrayList<Integer> storeIds,
            SparseArray<Float> distanceMap) 

Method Source Code

//package com.java2s;

import android.util.SparseArray;

import java.util.ArrayList;

public class Main {
    public static int getClosestStore(ArrayList<Integer> storeIds,
            SparseArray<Float> distanceMap) {
        /*//w  ww  .java2  s .c  om
         * storeIds: list of store_ids
         * distanceMap: <store_id, distance>
         * 
         * Returns the store_id of the store with the minimal distance from the user's last known location
         */
        float closestDistance = -1;
        int closestStore = 0;
        if (storeIds != null && distanceMap != null) {
            for (int j = 0; j < storeIds.size(); j++) {
                float nextDistance = distanceMap.get(storeIds.get(j));
                if (closestDistance < 0 || nextDistance < closestDistance) {
                    closestDistance = nextDistance;
                    closestStore = storeIds.get(j);
                }
            }
        }
        return closestStore;
    }
}

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