좌표값 가져오기

MainActivity.java

package com.example.location;

import android.annotation.SuppressLint;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import com.pedro.library.AutoPermissions;
import com.pedro.library.AutoPermissionsListener;


public class MainActivity extends AppCompatActivity implements AutoPermissionsListener {
    //0.전역변수 선언
    Button btn;
    TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        AutoPermissions.Companion.loadAllPermissions(this,101);

        //1.변수 초기화
        btn = findViewById(R.id.btn1);
        textView = findViewById(R.id.text1);

        //2.btn에 클릭이벤트를 걸었다.
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //클릭하면 해당 메소드가 실행된다.
                startLocationService();
            }
        });
    }//end on create

    @SuppressLint("MissingPermission")
    public void startLocationService(){
        //마지막 좌표보여주기
        LocationManager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        try{
            Location location = manager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
            if(location != null) {
                double latitude = location.getLatitude();
                double longitude = location.getLongitude();
                String message = "최근 위치: " + latitude + ", " + longitude;
                textView.setText(message);
            }
        } catch(Exception e){
            e.printStackTrace();
        }

        //5.지속적인 좌표업데이트 추가
        GPSListener gpsListner = new GPSListener();
        long minTime = 10000; //10초를 뜻함.
        float minDistance = 0; //거리 상관없이 무조건 10초마다. 여기에 값을 추가하면 일정 만큼 거리가 병경이 일어나면 하란 소리임.
        manager.requestLocationUpdates(LocationManager.GPS_PROVIDER, minTime, minDistance, gpsListner);
        Toast.makeText(getApplicationContext(), "내 위치 확인 요청함", Toast.LENGTH_SHORT).show();
    }


    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }

    @Override
    public void onDenied(int i, String[] strings) {

    }

    @Override
    public void onGranted(int i, String[] strings) {

    }

    //4.지속적으로 위치 받아오기
    class GPSListener implements LocationListener {
        @Override
        public void onLocationChanged(Location location) {
            double latitude = location.getLatitude();
            double longitude = location.getLongitude();
            String message = "최근 위치: " + latitude + ", " + longitude;
            textView.setText(textView.getText() +"\n" + message) ;
        }
        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {

        }
        @Override
        public void onProviderEnabled(String provider) {

        }
        @Override
        public void onProviderDisabled(String provider) {

        }
    }
}//class end