如何在我的位置跟踪应用程序中移动GPS距离？Android，java

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity implements LocationListener {

    private TextView distanceTextView;
    private LocationManager locationManager;
    private Location previousLocation;
    private double totalDistance;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        distanceTextView = findViewById(R.id.distanceTextView);

        // 获取位置管理器
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        // 检查是否有定位权限
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            // 如果没有权限，则请求权限
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION}, 1);
            return;
        }

        // 注册位置监听器
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
    }

    @Override
    public void onLocationChanged(Location location) {
        if (previousLocation != null) {
            // 计算当前位置与上一个位置之间的距离
            float[] results = new float[1];
            Location.distanceBetween(previousLocation.getLatitude(), previousLocation.getLongitude(),
                    location.getLatitude(), location.getLongitude(), results);
            float distance = results[0];

            // 更新总距离
            totalDistance += distance;
        }

        // 更新上一个位置
        previousLocation = location;

        // 显示总距离
        distanceTextView.setText("Total Distance: " + totalDistance + " meters");
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
    }

    @Override
    public void onProviderEnabled(String provider) {
    }

    @Override
    public void onProviderDisabled(String provider) {
    }
}