Praktikum X
Android Location API
Google Map
Pokok Bahasan:• Membuat Aplikasi Google Map Tujuan Belajar:
Setelah mempelajari modul ini mahasiswa diharapkan mengetahui:
• Cara membuat aplikasi Google Map
• Mengenal Koordinat pemetaan (Longitude dan Latitude)
Teori Dasar
Salah satu ciri mobile phone /tablet pc adalah portabilitas, sehingga tidak mengherankan bahwa beberapa fitur android sangat menarik seperti layanan yang memungkinkan anda menemukan, mencari serta menvisualisasikan posisi kita ke dalam peta lokasi fisik (google maps).
Percobaan 1:
1. Buat project baru
2. Tambahkan coding berikut pada main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Latitude:" android:textSize="20dip"/> <TextView android:id="@+id/txtLat" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="" />
<TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Longitude:" android:textSize="20dip"/> <TextView android:id="@+id/txtLong" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="" /> </LinearLayout>
3. Tambahkan coding dibawah pada file activity: package com.locationapi; import android.location.Criteria; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.widget.TextView; import android.widget.Toast; import android.app.Activity; import android.content.Context;
public class LokasiActivity extends Activity implements LocationListener {
private TextView latituteField; private TextView longitudeField;
private LocationManager locationManager; private String provider;
@Override
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.main);
longitudeField = (TextView) findViewById(R.id.txtLong);
locationManager=(LocationManager) getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
provider = locationManager.getBestProvider(criteria, false);
Location location = locationManager.getLastKnownLocation(provider);
if (location != null) {
System.out.println("Provider " + provider + " has been selected."); onLocationChanged(location);
} else {
latituteField.setText("Lokasi tidak tersedia"); longitudeField.setText("Lokasi tidak tersedia"); }
}
protected void onResume() { super.onResume();
locationManager.requestLocationUpdates(provider, 400, 1, this); }
protected void onPause() { super.onPause();
locationManager.removeUpdates(this); }
@Override
public void onLocationChanged(Location location) { // TODO Auto-generated method stub float lat = (float) (location.getLatitude()); float lng = (float) (location.getLongitude()); latituteField.setText(String.valueOf(lat));
longitudeField.setText(String.valueOf(lng)); }
@Override
public void onProviderDisabled(String provider) { // TODO Auto-generated method stub
Toast.makeText(this, "Disabled provider " + provider, Toast.LENGTH_SHORT).show();
@Override
public void onProviderEnabled(String provider) { // TODO Auto-generated method stub
Toast.makeText(this, "Enabled new provider " + provider, Toast.LENGTH_SHORT).show();
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) { // TODO Auto-generated method stub
} }
4. Tambahkan 3 uses-permission berikut pada AndroidManifest.xml:
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.locationapi" android:versionCode="1" android:versionName="1.0" > <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="com.locationapi.LokasiActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
5. Pilih DDMS > Emulator Control > ubah nilai Longitude dan Latitude > klik Send > amati perubahan yang terjadi pada emulator.
Percobaan 2:
Persiapan Device
1. Install Google Play Service pada Android SDK manager
2. Import project yang berada dalam …sdk\extras\google\google_play_services\libproject
Dengan cara File > Import > adroid > Existing android project into workspace > browse > pilih folder libproject tersebut.
3. Buka command prompt dan ketik:
keytool list v alias androiddebugkey keystore C:\Users\<nama user>\.android\debug.keystore -storepass android -keypass android
4. Buka https://code.google.com/apis/console/, pilih services dan aktifkan Google Maps Android API v2.
6. Isi kode SHA1 yang terdapat pada cmd beserta nama package project yang akan dibuat.
7. Jalankan Android Virtual Device dan install google play service melalui cmd setelah AVD selesai booting:
Pembuatan Program
1. Buat android project baru:3. Activity_Main.xml <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:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MapActivity" > <fragment android:id="@+id/map" android:name="com.google.android.gms.maps.MapFragment" android:layout_below="@+id/btnRsj" android:layout_width="match_parent" android:layout_height="match_parent" /> <Button android:id="@+id/btnUnsada" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="@+id/map" android:layout_alignLeft="@+id/map" android:onClick="onClick_Unsada" android:text="Unsada" /> <Button android:id="@+id/btnRsj" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_marginTop="14dp" android:onClick="onClick_Rsj" android:text="RSJ" /> <Button android:id="@+id/btnRagunan" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_above="@+id/map" android:layout_alignRight="@+id/map" android:onClick="onClick_Ragunan" android:text="Ragunan" /> </RelativeLayout> 4. AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.mapapp" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" /> <permission android:name="com.mapapp.permission.MAPS_RECEIVE" android:protectionLevel="signature" /> <uses-feature android:glEsVersion="0x00020000" android:required="true" /> <uses-permission android:name="com.mapapp.permission.MAPS_RECEIVE" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="AIzaSyAd7Pygd2Dhw19VgbfJyjk6jgurAEJsH60"/>
<activity android:name="com.mapapp.MapActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest> 5. MapActivity.java package com.mapapp; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.view.View; import com.google.android.gms.maps.CameraUpdate; 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.model.LatLng; import com.google.android.gms.maps.model.MarkerOptions; public class MapActivity extends Activity {
private final LatLng LOCATION_UNSADA = new LatLng(-6.229671, 106.924331); //lokasi unsada
private final LatLng LOCATION_RSJ = new LatLng(-6.168033, 106.798181); //lokasi rsj
private final LatLng LOCATION_RAGUNAN = new LatLng(-6.309532, 106.820370); //lokasi ragunan
private GoogleMap map; @Override
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.main); map = ((MapFragment)
getFragmentManager().findFragmentById(R.id.map)).getMap(); map.addMarker(new
map.addMarker(new
MarkerOptions().position(LOCATION_RSJ).title("Saya berobat kesini!")); map.addMarker(new
MarkerOptions().position(LOCATION_RAGUNAN).title("Saya tinggal disini!")); }
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.map, menu); return true;
}
public void onClick_Unsada(View v) {
map.setMapType(GoogleMap.MAP_TYPE_TERRAIN); CameraUpdate update =
CameraUpdateFactory.newLatLngZoom(LOCATION_UNSADA, 14); map.animateCamera(update);
}
public void onClick_Rsj(View v) {
map.setMapType(GoogleMap.MAP_TYPE_NORMAL); CameraUpdate update =
CameraUpdateFactory.newLatLngZoom(LOCATION_RSJ, 16); map.animateCamera(update);
}
public void onClick_Ragunan(View v) {
map.setMapType(GoogleMap.MAP_TYPE_SATELLITE); CameraUpdate update = CameraUpdateFactory.newLatLngZoom(LOCATION_RAGUNAN, 15); map.animateCamera(update); } }
6. Jalankan Aplikasi
Bila masih bingung bisa hubungi : Brianlasta@gmail.com
