[Android] GoogleMapsFragment

* GoogleMaps랑 기본적으로 비슷

 

build.gradle

implementation 'com.google.android.gms:play-services-location:17.0.0'
implementation 'com.google.android.gms:play-services-maps:17.0.0'

 

google_maps_api

google map key 입력

 

 

새로만들기 > Fragment > Google Maps Fragment 생성

activity_main.xml

<FrameLayout
        android:id="@+id/content"
        android:layout_width="match_parent"
        android:layout_height="622dp"
        app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent"
        android:layout_marginTop="256dp">
</FrameLayout>
<TextView
        android:text="주소"
        android:layout_width="61dp"
        android:layout_height="31dp" android:id="@+id/textView"
        app:layout_constraintTop_toTopOf="parent" app:layout_constraintStart_toStartOf="parent"
        android:layout_marginTop="36dp" android:layout_marginStart="44dp"/>
<EditText
        android:layout_width="425dp"
        android:layout_height="47dp"
        android:inputType="textPersonName"
        android:ems="10"
        android:id="@+id/editAddr"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintVertical_bias="0.028"
        app:layout_constraintStart_toEndOf="@+id/textView" android:layout_marginStart="16dp"/>
<EditText
        android:layout_width="224dp"
        android:layout_height="44dp"
        android:inputType="textPersonName"
        android:ems="10"
        android:id="@+id/editLat"
        app:layout_constraintStart_toStartOf="parent"
        android:layout_marginStart="48dp" app:layout_constraintTop_toBottomOf="@+id/button"
        android:layout_marginTop="20dp"/>
<EditText
        android:layout_width="226dp"
        android:layout_height="41dp"
        android:inputType="textPersonName"
        android:ems="10"
        android:id="@+id/editLon"
        app:layout_constraintStart_toEndOf="@+id/editLat"
        android:layout_marginStart="44dp" app:layout_constraintTop_toTopOf="@+id/editLat"/>
<Button
        android:text="위도, 경도 변환후 지도 보기"
        android:layout_width="230dp"
        android:layout_height="50dp"
        android:id="@+id/button"
        app:layout_constraintTop_toBottomOf="@+id/editAddr"
        android:layout_marginTop="36dp" app:layout_constraintStart_toStartOf="parent"
        android:layout_marginStart="184dp"/>

 

MainActivity

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val fm = supportFragmentManager
        val fragmentTransaction = fm.beginTransaction()
        val mapsFragment = MapsFragment(this)
        fragmentTransaction.add(R.id.content, mapsFragment) // <- 수정됨
        fragmentTransaction.commit()

        var button1: Button = findViewById<Button>(R.id.button) // 위도, 경로로 변환

        val editText: EditText = findViewById<EditText>(R.id.editAddr)  // 주소입력
        val editText1:EditText = findViewById<EditText>(R.id.editLat) // 위도입력
        val editText2:EditText = findViewById<EditText>(R.id.editLon) // 경도입력

        val geocoder: Geocoder = Geocoder(this)

        var latitude:Double = -34.0
        var longitude:Double = 151.0

        // 변환1 주소 -> 위도, 경도
        button1.setOnClickListener{
            var list: List<Address>? = null
            val str: String = editText.text.toString()
            try {
                list = geocoder.getFromLocationName(
                    str,  // 지역 이름
                    10
                ) // 읽을 개수
            } catch (e: IOException) {
                e.printStackTrace()
                Log.e("test", "입출력 오류 - 서버에서 주소변환시 에러발생")
            }

            if (list != null) {
                if (list!!.isEmpty()) {
                    Toast.makeText(this, "해당되는 주소 정보는 없습니다", Toast.LENGTH_LONG).show()
                } else {
                    // editText1.text 는 안된다
                    editText1.setText(list!![0].latitude.toString())
                    editText2.setText(list!![0].longitude.toString())

                    latitude = list!![0].latitude
                    longitude = list!![0].longitude

                    // 위도,경도 입력 후 지도
                    mapsFragment.setLocation(latitude, longitude)
                }
            }
        }
    }
}

 

 

MapsFragment

class MapsFragment(val activity: Activity) : Fragment(), OnMapReadyCallback{
    // 위치 권한
    lateinit var locationPermission: ActivityResultLauncher<Array<String>>

    private lateinit var mMap: GoogleMap

    // 위치 서비스가 GPS를 사용해서 위치를 확인
    lateinit var fusedLocationClient: FusedLocationProviderClient
    // 위치 값 요청에 대한 갱신 정보를 받는 변수
    lateinit var locationCallback: LocationCallback


    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?    ): View? {
	// 권한 승인
        locationPermission = registerForActivityResult(
            ActivityResultContracts.RequestMultiplePermissions() ){ results->
            if(!results.all { it.value }){
                Toast.makeText(activity, "권한 승인이 필요합니다", Toast.LENGTH_LONG).show()
            }
        }

        // 권한 요청
        locationPermission.launch(
            arrayOf(
                Manifest.permission.ACCESS_COARSE_LOCATION,
                Manifest.permission.ACCESS_FINE_LOCATION
            )
        )

        return inflater.inflate(R.layout.fragment_maps, container, false)
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        val mapFragment = childFragmentManager.findFragmentById(R.id.map) as SupportMapFragment?
        mapFragment?.getMapAsync(this)
    }

    override fun onMapReady(googleMap: GoogleMap) {
        mMap = googleMap
        fusedLocationClient = LocationServices.getFusedLocationProviderClient(activity)
        // updateLocation() 이건 현재 필요 없음
    }


    fun setLocation(latitude:Double, longitude:Double){
        val LATLNG = LatLng(latitude, longitude)

        val markerOptions = MarkerOptions()
            .position(LATLNG)
            .title("Here!")

        val cameraPosition = CameraPosition.Builder()
            .target(LATLNG)
            .zoom(15.0f)
            .build()

        mMap.clear()
        mMap.addMarker(markerOptions)
        mMap.moveCamera(CameraUpdateFactory.newCameraPosition(cameraPosition))
    }

}