AndroidStudio 에서 JAVA 로 GPS 현재 위치 확인하기

[출처] https://mainia.tistory.com/1153

출처에서 activity_main.xml 파일 내용만 추가하여 테스트하였고 정상 동작 확인하였습니다.

 

 

1. AndroidManifest.xml

...     </uses-permission android:name="android.permission.internet" >     </uses-permission android:name="android.permission.access_fine_location" >     </uses-permission android:name="android.permission.access_coarse_location"> ...

 

 

2. MainActivity.java

package kr.sysdocu.position; import android.Manifest; import android.app.Activity; import android.content.pm.PackageManager; import android.os.Build; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; /** GPS 샘플 */ public class MainActivity extends Activity {     private Button btnShowLocation;     private TextView txtLat;     private TextView txtLon;     private final int PERMISSIONS_ACCESS_FINE_LOCATION = 1000;     private final int PERMISSIONS_ACCESS_COARSE_LOCATION = 1001;     private boolean isAccessFineLocation = false;     private boolean isAccessCoarseLocation = false;     private boolean isPermission = false;     // GPSTracker class     private GpsInfo gps;     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);         btnShowLocation = (Button) findViewById(R.id.btn_start);         txtLat = (TextView) findViewById(R.id.tv_latitude);         txtLon = (TextView) findViewById(R.id.tv_longitude);         // GPS 정보를 보여주기 위한 이벤트 클래스 등록         btnShowLocation.setOnClickListener(new View.OnClickListener() {             public void onClick(View arg0) {                 // 권한 요청을 해야 함                 if (!isPermission) {                     callPermission();                     return;                 }                 gps = new GpsInfo(MainActivity.this);                 // GPS 사용유무 가져오기                 if (gps.isGetLocation()) {                     double latitude = gps.getLatitude();                     double longitude = gps.getLongitude();                     txtLat.setText(String.valueOf(latitude));                     txtLon.setText(String.valueOf(longitude));                     Toast.makeText(                             getApplicationContext(),                             "당신의 위치 - \n위도: " + latitude + "\n경도: " + longitude,                             Toast.LENGTH_LONG).show();                 } else {                     // GPS 를 사용할수 없으므로                     gps.showSettingsAlert();                 }             }         });         callPermission();  // 권한 요청을 해야 함     }     @Override     public void onRequestPermissionsResult(int requestCode, String[] permissions,                                            int[] grantResults) {         if (requestCode == PERMISSIONS_ACCESS_FINE_LOCATION                 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {             isAccessFineLocation = true;         } else if (requestCode == PERMISSIONS_ACCESS_COARSE_LOCATION                 && grantResults[0] == PackageManager.PERMISSION_GRANTED){             isAccessCoarseLocation = true;         }         if (isAccessFineLocation && isAccessCoarseLocation) {             isPermission = true;         }     }     // 전화번호 권한 요청     private void callPermission() {         // Check the SDK version and whether the permission is already granted or not.         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M                 && checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION)                 != PackageManager.PERMISSION_GRANTED) {             requestPermissions(                     new String[]{Manifest.permission.ACCESS_FINE_LOCATION},                     PERMISSIONS_ACCESS_FINE_LOCATION);         } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M                 && checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION)                 != PackageManager.PERMISSION_GRANTED){             requestPermissions(                     new String[]{Manifest.permission.ACCESS_COARSE_LOCATION},                     PERMISSIONS_ACCESS_COARSE_LOCATION);         } else {             isPermission = true;         }     } }

 

 

3. activity_main.xml

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"     android:padding="16dp">     <!-- 시작 버튼 -->     <Button         android:id="@+id/btn_start"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:text="위치 가져오기" />     <!-- 위도 표시 -->     <TextView         android:id="@+id/tv_latitude"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:text="위도: "         android:textSize="18sp"         android:paddingTop="20dp" />     <!-- 경도 표시 -->     <TextView         android:id="@+id/tv_longitude"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:text="경도: "         android:textSize="18sp"         android:paddingTop="10dp" /> </LinearLayout>

 

 

4. GpsInfo.java

package kr.sysdocu.test; import android.annotation.TargetApi; import android.app.AlertDialog; import android.app.Service; import android.content.Context; import android.content.DialogInterface; 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.os.IBinder; import android.provider.Settings; import androidx.core.content.ContextCompat; public class GpsInfo extends Service implements LocationListener {     private final Context mContext;     // 현재 GPS 사용유무     boolean isGPSEnabled = false;     // 네트워크 사용유무     boolean isNetworkEnabled = false;     // GPS 상태값     boolean isGetLocation = false;     Location location;     double lat; // 위도     double lon; // 경도     // 최소 GPS 정보 업데이트 거리 10미터     private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10;     // 최소 GPS 정보 업데이트 시간 밀리세컨이므로 1분     private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1;     protected LocationManager locationManager;     public GpsInfo(Context context) {         this.mContext = context;         getLocation();     }     @TargetApi(23)     public Location getLocation() {         if ( Build.VERSION.SDK_INT >= 23 &&                 ContextCompat.checkSelfPermission(                         mContext, android.Manifest.permission.ACCESS_FINE_LOCATION )                         != PackageManager.PERMISSION_GRANTED &&                 ContextCompat.checkSelfPermission(                         mContext, android.Manifest.permission.ACCESS_COARSE_LOCATION)                         != PackageManager.PERMISSION_GRANTED) {             return null;         }         try {             locationManager = (LocationManager) mContext                     .getSystemService(LOCATION_SERVICE);             // GPS 정보 가져오기             isGPSEnabled = locationManager                     .isProviderEnabled(LocationManager.GPS_PROVIDER);             // 현재 네트워크 상태 값 알아오기             isNetworkEnabled = locationManager                     .isProviderEnabled(LocationManager.NETWORK_PROVIDER);             if (!isGPSEnabled && !isNetworkEnabled) {                 // GPS 와 네트워크사용이 가능하지 않을때 소스 구현             } else {                 this.isGetLocation = true;                 // 네트워크 정보로 부터 위치값 가져오기                 if (isNetworkEnabled) {                     locationManager.requestLocationUpdates(                             LocationManager.NETWORK_PROVIDER,                             MIN_TIME_BW_UPDATES,                             MIN_DISTANCE_CHANGE_FOR_UPDATES, this);                     if (locationManager != null) {                         location = locationManager                                 .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);                         if (location != null) {                             // 위도 경도 저장                             lat = location.getLatitude();                             lon = location.getLongitude();                         }                     }                 }                 if (isGPSEnabled) {                     if (location == null) {                         locationManager.requestLocationUpdates(                                 LocationManager.GPS_PROVIDER,                                 MIN_TIME_BW_UPDATES,                                 MIN_DISTANCE_CHANGE_FOR_UPDATES, this);                         if (locationManager != null) {                             location = locationManager                                     .getLastKnownLocation(LocationManager.GPS_PROVIDER);                             if (location != null) {                                 lat = location.getLatitude();                                 lon = location.getLongitude();                             }                         }                     }                 }             }         } catch (Exception e) {             e.printStackTrace();         }         return location;     }     /**      * GPS 종료      * */     public void stopUsingGPS(){         if(locationManager != null){             locationManager.removeUpdates(GpsInfo.this);         }     }     /**      * 위도값을 가져옵니다.      * */     public double getLatitude(){         if(location != null){             lat = location.getLatitude();         }         return lat;     }     /**      * 경도값을 가져옵니다.      * */     public double getLongitude(){         if(location != null){             lon = location.getLongitude();         }         return lon;     }     /**      * GPS 나 wife 정보가 켜져있는지 확인합니다.      * */     public boolean isGetLocation() {         return this.isGetLocation;     }     /**      * GPS 정보를 가져오지 못했을때      * 설정값으로 갈지 물어보는 alert 창      * */     public void showSettingsAlert(){         AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);         alertDialog.setTitle("GPS 사용유무셋팅");         alertDialog.setMessage("GPS 셋팅이 되지 않았을수도 있습니다. \n 설정창으로 가시겠습니까?");         // OK 를 누르게 되면 설정창으로 이동합니다.         alertDialog.setPositiveButton("Settings",                 new DialogInterface.OnClickListener() {                     public void onClick(DialogInterface dialog,int which) {                         Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);                         mContext.startActivity(intent);                     }                 });         // Cancle 하면 종료 합니다.         alertDialog.setNegativeButton("Cancel",                 new DialogInterface.OnClickListener() {                     public void onClick(DialogInterface dialog, int which) {                         dialog.cancel();                     }                 });         alertDialog.show();     }     @Override     public IBinder onBind(Intent arg0) {         return null;     }     public void onLocationChanged(Location location) {         // TODO Auto-generated method stub     }     public void onStatusChanged(String provider, int status, Bundle extras) {         // TODO Auto-generated method stub     }     public void onProviderEnabled(String provider) {         // TODO Auto-generated method stub     }     public void onProviderDisabled(String provider) {         // TODO Auto-generated method stub     } }