[Android App 개발 스터디] #24 구글맵

  구글맵 API를 통해 구글맵을 앱화면에 띄워볼 것이다.

https://www.youtube.com/watch?v=d-Dkb2bmcQs&list=PLC51MBz7PMyyyR2l4gGBMFMMUfYmBkZxm&index=25 

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(1) 기초 작업

  구글맵 콘솔에서 API키 받아오기.

https://console.cloud.google.com/google/maps-apis/overview

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(2) AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.googlemaplexample">

    <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/Theme.GoogleMaplExample">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <meta-data
            android:name="com.google.android.geo.API_KEY"
            android:value="AIzaSyC2ePhFiAq54KicpbpSFasOetDUTvFloLo"/>


    </application>

</manifest>

- meta-data 를 위와 같이 추가해준다.

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(3) build.gradle(:app)

plugins {
    id 'com.android.application'
}

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.3"

    defaultConfig {
        applicationId "com.example.googlemaplexample"
        minSdkVersion 16
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {

    implementation 'androidx.appcompat:appcompat:1.3.1'
    implementation 'com.google.android.material:material:1.4.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
    implementation 'com.google.android.gms:play-services-maps:17.0.0'
    implementation 'com.google.android.gms:play-services-location:17.0.0'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}

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

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

 2가지를 위와 같이 추가해준다.

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(4) activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <fragment
        android:id="@+id/googleMap"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.MapFragment"/>

</LinearLayout>

- fragment를 추가해준다.

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(5) MainActivity.java

package com.example.googlemaplexample;

import androidx.appcompat.app.AppCompatActivity;


import android.app.FragmentManager;
import android.os.Bundle;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class MainActivity extends AppCompatActivity implements OnMapReadyCallback {

    private FragmentManager fragmentManager;
    private MapFragment mapFragment;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        fragmentManager = getFragmentManager();
        mapFragment = (MapFragment)fragmentManager.findFragmentById(R.id.googleMap);
        mapFragment.getMapAsync(this);

    }



    @Override
    public void onMapReady(GoogleMap googleMap) {
        LatLng location = new LatLng(35.205739, 129.078477);
        MarkerOptions markerOptions = new MarkerOptions();
        markerOptions.title("동래역");
        markerOptions.snippet("전철역");
        markerOptions.position(location);
        googleMap.addMarker(markerOptions);

        googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(location, 16));

    }
}

- OnMapReadyCallback을 implement해준다.

- fragment를 불러와준다.

- onMapReady함수를 통해 구글맵 정보를 가져온다.

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※ 실행화면