이 예는 Android 스튜디오에서 종속성을 추가하는 방법을 보여줍니다.
1단계 − Android Studio에서 새 프로젝트를 생성하고 파일 ⇒ 새 프로젝트로 이동하여 필요한 모든 세부 정보를 입력하여 새 프로젝트를 생성합니다.
2단계 − res/layout/activity_main.xml에 다음 코드를 추가합니다.
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="https://schemas.android.com/apk/res/android" xmlns:tools="https://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_horizontal" android:orientation="vertical" tools:context=".MainActivity"> <Button android:id="@+id/btn_start_location_updates" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="40dp" android:onClick="startLocationButtonClick" android:text="@string/start_updates" /> <Button android:id="@+id/btn_stop_location_updates" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="10dp" android:enabled="false" android:onClick="stopLocationButtonClick" android:text="@string/stop_updates" /> <Button android:id="@+id/btn_get_last_location" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="10dp" android:onClick="showLastKnownLocation" android:text="@string/get_last_location" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="50dp" android:gravity="center_horizontal" android:text="Location updates will be received only when app is foreground" /> <TextView android:id="@+id/location_result" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="20dp" android:textColor="#333" android:textSize="18sp" /> <TextView android:id="@+id/updated_on" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="30dp" android:textSize="12sp" /> </LinearLayout>
3단계 − src/MainActivity.java
에 다음 코드 추가package app.com.sample; import androidx.annotation.NonNull; import androidx.appcompat.app.AppCompatActivity; import androidx.core.app.ActivityCompat; import android.Manifest; import android.annotation.SuppressLint; import android.app.Activity; import android.content.Intent; import android.content.IntentSender; import android.content.pm.PackageManager; import android.location.Location; import android.net.Uri; import android.os.Bundle; import android.os.Looper; import android.provider.Settings; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; import com.google.android.gms.common.api.ApiException; import com.google.android.gms.common.api.ResolvableApiException; import com.google.android.gms.location.FusedLocationProviderClient; import com.google.android.gms.location.LocationCallback; import com.google.android.gms.location.LocationRequest; import com.google.android.gms.location.LocationResult; import com.google.android.gms.location.LocationServices; import com.google.android.gms.location.LocationSettingsRequest; import com.google.android.gms.location.LocationSettingsResponse; import com.google.android.gms.location.LocationSettingsStatusCodes; import com.google.android.gms.location.SettingsClient; import com.google.android.gms.tasks.OnCompleteListener; import com.google.android.gms.tasks.OnFailureListener; import com.google.android.gms.tasks.OnSuccessListener; import com.google.android.gms.tasks.Task; import com.karumi.dexter.Dexter; import com.karumi.dexter.PermissionToken; import com.karumi.dexter.listener.PermissionDeniedResponse; import com.karumi.dexter.listener.PermissionGrantedResponse; import com.karumi.dexter.listener.PermissionRequest; import com.karumi.dexter.listener.single.PermissionListener; import java.text.DateFormat; import java.util.Date; public class MainActivity extends AppCompatActivity { private static final String TAG = MainActivity.class.getSimpleName(); TextView txtLocationResult; TextView txtUpdatedOn; Button btnStartUpdates; Button btnStopUpdates; // location last updated time private String mLastUpdateTime; // location updates interval - 10sec private static final long UPDATE_INTERVAL_IN_MILLISECONDS = 10000; // fastest updates interval - 5 sec // location updates will be received if another app is requesting the locations // than your app can handle private static final long FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS = 5000; private static final int REQUEST_CHECK_SETTINGS = 100; // bunch of location related apis private FusedLocationProviderClient mFusedLocationClient; private SettingsClient mSettingsClient; private LocationRequest mLocationRequest; private LocationSettingsRequest mLocationSettingsRequest; private LocationCallback mLocationCallback; private Location mCurrentLocation; // boolean flag to toggle the ui private Boolean mRequestingLocationUpdates; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // initialize the necessary libraries init(); // restore the values from saved instance state restoreValuesFromBundle(savedInstanceState); } private void init() { txtLocationResult = findViewById(R.id.location_result); txtUpdatedOn = findViewById(R.id.updated_on); btnStartUpdates = findViewById(R.id.btn_start_location_updates); btnStopUpdates = findViewById(R.id.btn_stop_location_updates); mFusedLocationClient = LocationServices.getFusedLocationProviderClient(this); mSettingsClient = LocationServices.getSettingsClient(this); mLocationCallback = new LocationCallback() { @Override public void onLocationResult(LocationResult locationResult) { super.onLocationResult(locationResult); // location is received mCurrentLocation = locationResult.getLastLocation(); mLastUpdateTime = DateFormat.getTimeInstance().format(new Date()); updateLocationUI(); } }; mRequestingLocationUpdates = false; mLocationRequest = new LocationRequest(); mLocationRequest.setInterval(UPDATE_INTERVAL_IN_MILLISECONDS); mLocationRequest.setFastestInterval(FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS); mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY); LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder(); builder.addLocationRequest(mLocationRequest); mLocationSettingsRequest = builder.build(); } /** * Restoring values from saved instance state */ private void restoreValuesFromBundle(Bundle savedInstanceState) { if (savedInstanceState != null) { if (savedInstanceState.containsKey("is_requesting_updates")) { mRequestingLocationUpdates = savedInstanceState.getBoolean("is_requesting_updates"); } if (savedInstanceState.containsKey("last_known_location")) { mCurrentLocation = savedInstanceState.getParcelable("last_known_location"); } if (savedInstanceState.containsKey("last_updated_on")) { mLastUpdateTime = savedInstanceState.getString("last_updated_on"); } } updateLocationUI(); } /** * Update the UI displaying the location data * and toggling the buttons */ private void updateLocationUI() { if (mCurrentLocation != null) { txtLocationResult.setText( "Lat: " + mCurrentLocation.getLatitude() + ", " + "Lng: " + mCurrentLocation.getLongitude() ); // giving a blink animation on TextView txtLocationResult.setAlpha(0); txtLocationResult.animate().alpha(1).setDuration(300); // location last updated time txtUpdatedOn.setText("Last updated on: " + mLastUpdateTime); } toggleButtons(); } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putBoolean("is_requesting_updates", mRequestingLocationUpdates); outState.putParcelable("last_known_location", mCurrentLocation); outState.putString("last_updated_on", mLastUpdateTime); } private void toggleButtons() { if (mRequestingLocationUpdates) { btnStartUpdates.setEnabled(false); btnStopUpdates.setEnabled(true); } else { btnStartUpdates.setEnabled(true); btnStopUpdates.setEnabled(false); } } /** * Starting location updates * Check whether location settings are satisfied and then * location updates will be requested */ private void startLocationUpdates() { mSettingsClient .checkLocationSettings(mLocationSettingsRequest) .addOnSuccessListener(this, new OnSuccessListener<LocationSettingsResponse>() { @SuppressLint("MissingPermission") @Override public void onSuccess(LocationSettingsResponse locationSettingsResponse) { Log.i(TAG, "All location settings are satisfied."); Toast.makeText(getApplicationContext(), "Started location updates!", Toast.LENGTH_SHORT).show(); //noinspection MissingPermission mFusedLocationClient.requestLocationUpdates(mLocationRequest, mLocationCallback, Looper.myLooper()); updateLocationUI(); } }) .addOnFailureListener(this, new OnFailureListener() { @Override public void onFailure(@NonNull Exception e) { int statusCode = ((ApiException) e).getStatusCode(); switch (statusCode) { case LocationSettingsStatusCodes.RESOLUTION_REQUIRED: Log.i(TAG, "Location settings are not satisfied. Attempting to upgrade " + "location settings "); try { // Show the dialog by calling startResolutionForResult(), and check the // result in onActivityResult(). ResolvableApiException rae = (ResolvableApiException) e; rae.startResolutionForResult(MainActivity.this, REQUEST_CHECK_SETTINGS); } catch (IntentSender.SendIntentException sie) { Log.i(TAG, "PendingIntent unable to execute request."); } break; case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE: String errorMessage = "Location settings are inadequate, and cannot be " + "fixed here. Fix in Settings."; Log.e(TAG, errorMessage); Toast.makeText(MainActivity.this, errorMessage, Toast.LENGTH_LONG).show(); } updateLocationUI(); } }); } public void startLocationButtonClick(View view) { // Requesting ACCESS_FINE_LOCATION using Dexter library Dexter.withActivity(this) .withPermission(Manifest.permission.ACCESS_FINE_LOCATION) .withListener(new PermissionListener() { @Override public void onPermissionGranted(PermissionGrantedResponse response) { mRequestingLocationUpdates = true; startLocationUpdates(); } @Override public void onPermissionDenied(PermissionDeniedResponse response) { if (response.isPermanentlyDenied()) { // open device settings when the permission is // denied permanently openSettings(); } } @Override public void onPermissionRationaleShouldBeShown(PermissionRequest permission, PermissionToken token) { token.continuePermissionRequest(); } }).check(); } public void stopLocationButtonClick(View view) { mRequestingLocationUpdates = false; stopLocationUpdates(); } public void stopLocationUpdates() { // Removing location updates mFusedLocationClient .removeLocationUpdates(mLocationCallback) .addOnCompleteListener(this, new OnCompleteListener() { @Override public void onComplete(@NonNull Task task) { Toast.makeText(getApplicationContext(), "Location updates stopped!", Toast.LENGTH_SHORT).show(); toggleButtons(); } }); } public void showLastKnownLocation(View view) { if (mCurrentLocation != null) { Toast.makeText(getApplicationContext(), "Lat: " + mCurrentLocation.getLatitude() + ", Lng: " + mCurrentLocation.getLongitude(), Toast.LENGTH_LONG).show(); } else { Toast.makeText(getApplicationContext(), "Last known location is not available!", Toast.LENGTH_SHORT).show(); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // Check for the integer request code originally supplied to startResolutionForResult(). if (requestCode == REQUEST_CHECK_SETTINGS) { switch (resultCode) { case Activity.RESULT_OK: Log.e(TAG, "User agreed to make required location settings changes."); // Nothing to do. startLocationupdates() gets called in onResume again. break; case Activity.RESULT_CANCELED: Log.e(TAG, "User chose not to make required location settings changes."); mRequestingLocationUpdates = false; break; } } } private void openSettings() { Intent intent = new Intent(); intent.setAction( Settings.ACTION_APPLICATION_DETAILS_SETTINGS); Uri uri = Uri.fromParts("package", BuildConfig.APPLICATION_ID, null); intent.setData(uri); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); } @Override public void onResume() { super.onResume(); // Resuming location updates depending on button state and // allowed permissions if (mRequestingLocationUpdates && checkPermissions()) { startLocationUpdates(); } updateLocationUI(); } private boolean checkPermissions() { int permissionState = ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION); return permissionState == PackageManager.PERMISSION_GRANTED; } @Override protected void onPause() { super.onPause(); if (mRequestingLocationUpdates) { // pausing location updates stopLocationUpdates(); } }
4단계 − build.gradle(앱 수준)에 다음 코드 추가
// location play services implementation 'com.google.android.gms:play-services-location:17.0.0' // dexter runtime permissions implementation 'com.karumi:dexter:4.2.0'
5단계 − androidManifest.xml에 다음 코드 추가
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="https://schemas.android.com/apk/res/android" package="app.com.sample"> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
응용 프로그램을 실행해 보겠습니다. 실제 Android 모바일 장치를 컴퓨터에 연결했다고 가정합니다. Android 스튜디오에서 앱을 실행하려면 프로젝트의 활동 파일 중 하나를 열고 실행을 클릭합니다. 툴바에서 아이콘. 모바일 장치를 옵션으로 선택한 다음 기본 화면을 표시할 모바일 장치를 확인하십시오 -