안드로이드 나의 위치로 구글맵 띄우기

나의 위치로 구글맵 띄우기

GPS 를 이용하여 나의 위치찾기 -> 구글맵 띄우기

java)

package com.ghj.ex_004;
 
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.view.View;
import android.widget.RelativeLayout;
import android.widget.Toast;
 
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
 
public class MainActivity extends FragmentActivity implements OnMapReadyCallback {
 
    //GoogleMap 객체
    GoogleMap googleMap;
    MapFragment mapFragment;
    LocationManager locationManager;
    RelativeLayout boxMap;
    //나의 위도 경도 고도
    double mLatitude;  //위도
    double mLongitude; //경도
 
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        boxMap = (RelativeLayout)findViewById(R.id.boxMap);
 
        //LocationManager
        locationManager = (LocationManager)getSystemService(LOCATION_SERVICE);
 
 
        //GPS가 켜져있는지 체크
        if(!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)){
            //GPS 설정화면으로 이동
            Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
            intent.addCategory(Intent.CATEGORY_DEFAULT);
            startActivity(intent);
            finish();
        }
 
        //마시멜로 이상이면 권한 요청하기
        if(Build.VERSION.SDK_INT >= 23){
            //권한이 없는 경우
            if(ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED ||
                    ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED){
                ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION , Manifest.permission.ACCESS_FINE_LOCATION} , 1);
            }
            //권한이 있는 경우
            else{
                requestMyLocation();
            }
        }
        //마시멜로 아래
        else{
            requestMyLocation();
        }
    }
 
    //권한 요청후 응답 콜백
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        //ACCESS_COARSE_LOCATION 권한
        if(requestCode==1){
            //권한받음
            if(grantResults.length>0 && grantResults[0]==PackageManager.PERMISSION_GRANTED){
                requestMyLocation();
            }
            //권한못받음
            else{
                Toast.makeText(this, "권한없음", Toast.LENGTH_SHORT).show();
                finish();
            }
        }
    }
 
    //나의 위치 요청
    public void requestMyLocation(){
        if(ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED ||
                ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED){
            return;
        }
        //요청
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 100, 10, locationListener);
    }
 
    //위치정보 구하기 리스너
    LocationListener locationListener = new LocationListener() {
        @Override
        public void onLocationChanged(Location location) {
            if(ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED ||
                    ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED){
                return;
            }
            //나의 위치를 한번만 가져오기 위해
            locationManager.removeUpdates(locationListener);
 
            //위도 경도
            mLatitude = location.getLatitude();   //위도
            mLongitude = location.getLongitude(); //경도
 
            //맵생성
            SupportMapFragment mapFragment = (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map);
            //콜백클래스 설정
            mapFragment.getMapAsync(MainActivity.this);
        }
 
        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) { Log.d("gps", "onStatusChanged"); }
 
        @Override
        public void onProviderEnabled(String provider) { }
 
        @Override
        public void onProviderDisabled(String provider) { }
    };
 
    //구글맵 생성 콜백
    @Override
    public void onMapReady(GoogleMap googleMap) {
        this.googleMap = googleMap;
 
        //지도타입 - 일반
        this.googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
 
        //나의 위치 설정
        LatLng position = new LatLng(mLatitude , mLongitude);
 
        //화면중앙의 위치와 카메라 줌비율
        this.googleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(position, 15));
 
        //지도 보여주기
        boxMap.setVisibility(View.VISIBLE);
    }
}

xml)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              xmlns:app="http://schemas.android.com/apk/res-auto"
              android:layout_width="match_parent"
              android:layout_height="match_parent">
 
    <RelativeLayout
        android:id="@+id/boxMap"
        android:visibility="invisible"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <fragment
            android:id="@+id/map"
            android:layout_weight="1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:name="com.google.android.gms.maps.SupportMapFragment"/>
    </RelativeLayout>
 
</LinearLayout>

AndroidManifest.xml)

<!-- Google Map -->
<meta-data android:name="com.google.android.geo.API_KEY" android:value="" />
...
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

gradle)

dependencies {
    ...
    compile 'com.google.android.gms:play-services-maps:9.8.0'
}