小编Jam*_*qba的帖子

我想做方向应用但是,我有问题从我的位置到目的地绘制路线,我从我的位置得到变量经度和纬度,但我不知道画线..我想画这个位置的方向= -6.984873352070259 ,108.48140716552734.请帮助我们..我之前已经阅读过排队但我无法获得解决方案..谢谢..我很抱歉之前..这是我的代码

package com.apps.visitkuningan;

import android.app.Dialog;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.widget.Toast;


import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;

public class Arahkan extends FragmentActivity implements LocationListener {

    GoogleMap googleMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // Getting Google Play availability status
        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());

        // Showing status
        if(status!=ConnectionResult.SUCCESS){ // Google Play Services are not available

            int requestCode = 10;
            Dialog dialog …

我在我的应用程序中有两个数组,在这种情况下我想在我的应用程序中组合两个数组但我尝试并失败..这是我的代码..请结合数组数据和data2:

Data[] data = {
        new Data(-79.400917f,43.661049f, "New New College Res",
                "Residence building (new concrete high-rise)", "R.drawable.mr_kun"),
        new Data(-79.394524f,43.655796f, "Baldwin Street",
                "Here be many good restaurants!", "R.drawable.mr_kun"),
        new Data(-79.402206f,43.657688f, "College St",
                "Lots of discount computer stores if you forgot a cable or need to buy hardware.", "R.drawable.mr_kun"),    
        new Data(-79.390381f,43.659878f, "Queens Park Subway",
                "Quickest way to the north-south (Yonge-University-Spadina) subway/metro line", "R.drawable.mr_kun"),

};

Data[] data2 = {
        new Data(-79.403732f,43.666801f, "Spadina Subway",
                "Quickest way to the east-west (Bloor-Danforth) subway/metro line", "R.drawable.mr_kun"),
        new …