Google Maps ile Android Uygulamaları Giriş

1- Android Studio kurmalısınız :)
2- Android SDK manager kullanarak Google Play Services yüklemelisiniz.
3- https://hacerkubra.blogspot.com/2018/12/google-maps-andorid-uygulamalar-1.html linkindeki kodları yazmalısın.
4- Google Developer Console giriş yaparak Google Maps Androdi Apı etkinleştirmeli ve API key almalısınız.
5- SHA almak

---

1- Blank Activity oluştur.
2- Build.gradle düzenle
3- androidManifest Düzenle

* Google Serrvices meta
* API Key meta
* kullanıcı izinleri
*OpenGl meta

4- activity_main.xml düzenle

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/map"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:name="com.google.android.gms.maps.MapFragment"/>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <fragment xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:map="http://schemas.android.com/apk/res-auto"
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:name="com.google.android.gms.maps.MapFragment"
        map:cameraBearing="112.5"
        map:cameraTargetLat="40.7484"
        map:cameraTargetLng="-73.9857"
        map:cameraTilt="65"
        map:cameraZoom="17"
        />
</RelativeLayout>

5- MainActivity.java düzenle

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        // Add a marker in Sydney, Australia, and move the camera.
        LatLng sydney = new LatLng(-34, 151);
        mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
        mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
    }
}

Kaynak : https://developers.google.com/maps/documentation/android-sdk/start#getting_the_google_maps_android_api_v2