이 예시는 Android Kotlin의 위도와 경도에서 전체 주소를 가져오는 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"?> <RelativeLayout 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:padding="16sp" tools:context=".MainActivity"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="50dp" android:text="Tutorials Point" android:textAlignment="center" android:textColor="@android:color/holo_green_dark" android:textSize="32sp" android:textStyle="bold" /> <Button android:id="@+id/btnShowAddress" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="Show Address" /> <TextView android:id="@+id/tvAddress" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/btnShowAddress" android:layout_centerInParent="true" android:textColor="@android:color/background_dark" android:textSize="12sp" android:textStyle="bold" /> </RelativeLayout>
3단계 − src/MainActivity.kt에 다음 코드 추가
import android.content.Intent
import android.content.pm.PackageManager
import android.location.Location
import android.location.LocationManager
import android.os.Bundle
import android.os.Handler
import android.os.Message
import android.provider.Settings
import android.widget.Button
import android.widget.TextView
import android.widget.Toast
import androidx.appcompat.app.AlertDialog
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
class MainActivity : AppCompatActivity() {
lateinit var btnShowAddress: Button
lateinit var tvAddress: TextView
lateinit var location: Location
lateinit var appLocationService: AppLocationService
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
title = "KotlinApp"
tvAddress = findViewById(R.id.tvAddress)
appLocationService = AppLocationService(this)
btnShowAddress = findViewById(R.id.btnShowAddress)
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)) {
ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), 1);
} else {
ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), 1);
}
}
btnShowAddress.setOnClickListener {
location = appLocationService.getLocation(LocationManager.GPS_PROVIDER)!!
val latitude = 13.1000727
val longitude = 80.2126274
val locationAddress = LocationAddress()
locationAddress.getAddressFromLocation(
latitude, longitude, applicationContext, GeoCodeHandler()
)
showSettingsAlert()
}
}
private fun showSettingsAlert() {
val alertDialog = AlertDialog.Builder(this)
alertDialog.setTitle("SETTINGS")
alertDialog.setMessage("Enable Location Provider! Go to settings menu?")
alertDialog.setPositiveButton("Settings") { _, _ ->
val intent = Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS)
this@MainActivity.startActivity(intent)
}
alertDialog.setNegativeButton("Cancel") { dialog, _ -> dialog.cancel() }
alertDialog.show()
}
internal inner class GeoCodeHandler : Handler() {
override fun handleMessage(message: Message) {
val locationAddress: String
locationAddress = when (message.what) {
1 -> {
val bundle = message.data
bundle.getString("address")
}
else -> null.toString()
}
tvAddress.text = locationAddress
}
}
override fun onRequestPermissionsResult(
requestCode: Int,
permissions: Array<out String>,
grantResults: IntArray
) {
when (requestCode) {
1 -> {
if (grantResults.isNotEmpty() && grantResults[0] ===
PackageManager.PERMISSION_GRANTED) {
if ((ContextCompat.checkSelfPermission(
this@MainActivity,
Manifest.permission.ACCESS_FINE_LOCATION
) === PackageManager.PERMISSION_GRANTED)
) {
Toast.makeText(this, "Permission Granted", Toast.LENGTH_SHORT).show()
}
} else {
Toast.makeText(this, "Permission Denied", Toast.LENGTH_SHORT).show()
}
return
}
}
}
} 4단계 − kotlin 클래스를 생성하고 AppLocationService.kt에 다음 코드 추가
예시
import android.annotation.SuppressLint
import android.app.Service
import android.content.Context
import android.content.Intent
import android.location.Location
import android.location.LocationListener
import android.location.LocationManager
import android.os.Bundle
import android.os.IBinder
open class AppLocationService(context: Context) : Service(),
LocationListener {
private var locationManager: LocationManager? =
context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
private lateinit var location: Location
@SuppressLint("MissingPermission")
fun getLocation(provider: String?): Location? {
if (locationManager!!.isProviderEnabled(provider)) {
locationManager!!.requestLocationUpdates(
provider,
MIN_TIME_FOR_UPDATE,
MIN_DISTANCE_FOR_UPDATE.toFloat(), this
)
if (locationManager != null) {
location = locationManager!!.getLastKnownLocation(provider)
return location
}
}
return null
}
override fun onLocationChanged(location: Location) {}
override fun onProviderDisabled(provider: String) {}
override fun onProviderEnabled(provider: String) {}
override fun onStatusChanged(
provider: String,
status: Int,
extras: Bundle
) {
}
override fun onBind(arg0: Intent): IBinder? {
return null
}
companion object {
private const val MIN_DISTANCE_FOR_UPDATE: Long = 10
private const val MIN_TIME_FOR_UPDATE = 1000 * 60 * 2.toLong()
}
} 5단계 − kotlin 클래스를 생성하고 LocationAddress.kt에 다음 코드 추가
예시
import android.content.Context
import android.location.Geocoder
import android.os.Bundle
import android.os.Handler
import android.os.Message
import android.util.Log
import java.io.IOException
import java.util.*
class LocationAddress {
private val tag = "LocationAddress"
fun getAddressFromLocation(
latitude: Double,
longitude: Double, context: Context, handler: Handler
) {
val thread = object : Thread() {
override fun run() {
val geoCoder = Geocoder(
context,
Locale.getDefault()
)
var result: String = null.toString()
try {
val addressList = geoCoder.getFromLocation(
latitude, longitude, 1
)
if ((addressList != null && addressList.size > 0)) {
val address = addressList.get(0)
val sb = StringBuilder()
for (i in 0 until address.maxAddressLineIndex) {
sb.append(address.getAddressLine(i)).append("\n")
}
sb.append(address.locality).append("\n")
sb.append(address.postalCode).append("\n")
sb.append(address.countryName)
result = sb.toString()
}
} catch (e: IOException) {
Log.e(tag, "Unable connect to GeoCoder", e)
} finally {
val message = Message.obtain()
message.target = handler
message.what = 1
val bundle = Bundle()
result = ("Latitude: " + latitude + " Longitude: " + longitude +
"\n\nAddress:\n" + result)
bundle.putString("address", result)
message.data = bundle
message.sendToTarget()
}
}
}
thread.start()
}
} 6단계 − 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.q11"> <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 실행 아이콘을 클릭하세요. 툴바에서 
. 모바일 장치를 옵션으로 선택한 다음 기본 화면을 표시할 모바일 장치를 확인하십시오.
