- Default: Start ViewMap without any center location.
- GPS: It's the current GPS (which will be track before ViewMap start). If no valid GPS, this option will be disable.
- Location: User input location. If no location input, this option will be disable.
After ViewMap loaded, user can move the Map, Zoom-in/out using MapView's BuiltInZoomControls.
This application is not yet finished, more feature (or bug fixed) will be added in the furture.
Create a Android Application named, AndroidMapper.
Package Name: com.AndroidMapper
Target Google Platform 2.0 with Google APIs.
Modify main.xml to have the UI as seen in the picture.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<RadioGroup
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<RadioButton
android:id="@+id/option_default"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Default Location" />
<RadioButton
android:id="@+id/option_gps"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="GPS:" />
<RadioButton
android:id="@+id/option_location"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Location:" />
</RadioGroup>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="latitude"
/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/latitude"
android:inputType="numberDecimal"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="longitude"
/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/longitude"
android:inputType="numberDecimal"
/>
<Button
android:id="@+id/loadmap"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Load Map"
/>
</LinearLayout>
Modify AndroidMapper.java
package com.AndroidMapper;
import com.google.android.maps.GeoPoint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
public class AndroidMapper extends Activity {
private LocationManager myLocationManager;
private LocationListener myLocationListener;
private GeoPoint GeoPoint_GPS, GeoPoint_Location;
RadioButton myoption_default, myoption_gps, myoption_location;
EditText mylatitude, mylongitude;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
loadMenu();
validGPS();
validLocation();
myLocationManager = (LocationManager)getSystemService(
Context.LOCATION_SERVICE);
myLocationListener = new MyLocationListener();
myLocationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
0,
0,
myLocationListener);
}
private void loadMenu()
{
setContentView(R.layout.main);
myoption_default = (RadioButton)findViewById(R.id.option_default);
myoption_gps = (RadioButton)findViewById(R.id.option_gps);
myoption_location = (RadioButton)findViewById(R.id.option_location);
mylatitude = (EditText)findViewById(R.id.latitude);
mylongitude = (EditText)findViewById(R.id.longitude);
mylatitude.setOnKeyListener(locationOnKeyListener);
mylongitude.setOnKeyListener(locationOnKeyListener);
Button myLoadMapButton = (Button)findViewById(R.id.loadmap);
myLoadMapButton.setOnClickListener(myLoadMapButtonOnClickListener);
}
Button.OnClickListener myLoadMapButtonOnClickListener =
new Button.OnClickListener(){
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(myoption_default.isChecked()){
OpenIntentAndroidMapView(null);
}
else if(myoption_gps.isChecked()){
OpenIntentAndroidMapView(GeoPoint_GPS);
}
else if(myoption_location.isChecked()){
OpenIntentAndroidMapView(GeoPoint_Location);
}
else{
OpenMissingOptionDialog();
}
}
};
private void OpenIntentAndroidMapView(GeoPoint startLocation)
{
Intent intent = new Intent();
intent.setClass(AndroidMapper.this, AndroidMapView.class);
Bundle bundle = new Bundle();
if (startLocation == null)
{
bundle.putInt("Mode", 0);
}
else
{
bundle.putInt("Mode", 1);
bundle.putInt("Longitude", startLocation.getLongitudeE6());
bundle.putInt("Latitude", startLocation.getLatitudeE6());
}
intent.putExtras(bundle);
startActivityForResult(intent, 0);
}
private void OpenMissingOptionDialog()
{
new AlertDialog.Builder(this)
.setTitle("missing selection")
.setMessage("Please select one of the option")
.setPositiveButton("OK",
new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialoginterface, int i)
{}
})
.show();
}
EditText.OnKeyListener locationOnKeyListener =
new EditText.OnKeyListener(){
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
validLocation();
return false;
}
};
private void validGPS()
{
GeoPoint_GPS = loadGPS();
if (GeoPoint_GPS==null)
{
myoption_gps.setClickable(false);
}
else
{
myoption_gps.setText("GPS: (" +
String.valueOf((float)GeoPoint_GPS.getLatitudeE6()/1000000) +" : " +
String.valueOf((float)GeoPoint_GPS.getLongitudeE6()/1000000) +")");
myoption_gps.setClickable(true);
}
}
private void validLocation()
{
/*
Toast.makeText(AndroidMapper.this,
mylatitude.getText().toString(),
Toast.LENGTH_LONG).show();*/
if (mylatitude.getText().toString().equals("") || mylongitude.getText().toString().equals(""))
{
myoption_location.setText("Location: ");
myoption_location.setClickable(false);
myoption_location.setChecked(false);
}
else
{
float locationLatitude = Float.parseFloat(mylatitude.getText().toString());
float locationLongitude = Float.parseFloat(mylongitude.getText().toString());
myoption_location.setText("Location: (" +
String.valueOf(locationLatitude) +" : " +
String.valueOf(locationLongitude) +")");
myoption_location.setClickable(true);
myoption_location.setChecked(true);
GeoPoint_Location = new GeoPoint(
(int)(locationLatitude*1000000),
(int)(locationLongitude*1000000));
}
}
private GeoPoint loadGPS()
{
//Get the current location from GPS
myLocationManager = (LocationManager)getSystemService(
Context.LOCATION_SERVICE);
Location initLocation=myLocationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if(initLocation != null)
{
return (
new GeoPoint(
(int)(initLocation.getLatitude()*1000000),
(int)(initLocation.getLongitude()*1000000)));
}
else
return null;
}
private class MyLocationListener implements LocationListener{
@Override
public void onLocationChanged(Location location) {
// TODO Auto-generated method stub
GeoPoint_GPS = new GeoPoint(
(int)(location.getLatitude()*1000000),
(int)(location.getLongitude()*1000000));
myoption_gps.setText("GPS: (" +
String.valueOf((float)GeoPoint_GPS.getLatitudeE6()/1000000) +" : " +
String.valueOf((float)GeoPoint_GPS.getLongitudeE6()/1000000) +")");
myoption_gps.setClickable(true);
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
}
Modify mymapview.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<CheckBox
android:id="@+id/satellite"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" Satellite "
/>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<TextView
android:id="@+id/longitude"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Longitude:"
/>
<TextView
android:id="@+id/latitude"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Latitude:"
/>
</LinearLayout>
</LinearLayout>
<com.google.android.maps.MapView
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:apiKey="-----Your Own API Key here-------------"
/>
</LinearLayout>
Modify AndroidMapView.java
package com.AndroidMapper;
import android.os.Bundle;
import android.view.View;
import android.widget.CheckBox;
import android.widget.TextView;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
public class AndroidMapView extends MapActivity {
private TextView myLongitude, myLatitude;
private CheckBox mySatellite;
private MapView myMapView;
private MapController myMapController;
private void SetSatellite()
{
myMapView.setSatellite(mySatellite.isChecked());
};
@Override
protected void onCreate(Bundle icicle) {
// TODO Auto-generated method stub
super.onCreate(icicle);
setContentView(R.layout.mymapview);
Bundle bundle = this.getIntent().getExtras();
int Mode = bundle.getInt("Mode");
myMapView = (MapView)findViewById(R.id.mapview);
myMapController = myMapView.getController();
myMapView.setBuiltInZoomControls(true);
myLongitude = (TextView)findViewById(R.id.longitude);
myLatitude = (TextView)findViewById(R.id.latitude);
mySatellite = (CheckBox)findViewById(R.id.satellite);
mySatellite.setOnClickListener(mySatelliteOnClickListener);
SetSatellite();
if(Mode == 1)
{
int intLatitude = bundle.getInt("Latitude");
int intLongitude = bundle.getInt("Longitude");
GeoPoint initGeoPoint = new GeoPoint(intLatitude, intLongitude);
CenterLocation(initGeoPoint);
}
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
private void CenterLocation(GeoPoint centerGeoPoint)
{
myMapController.animateTo(centerGeoPoint);
myLongitude.setText("Longitude: "+
String.valueOf((float)centerGeoPoint.getLongitudeE6()/1000000)
);
myLatitude.setText("Latitude: "+
String.valueOf((float)centerGeoPoint.getLatitudeE6()/1000000)
);
};
private CheckBox.OnClickListener mySatelliteOnClickListener =
new CheckBox.OnClickListener(){
public void onClick(View v) {
// TODO Auto-generated method stub
SetSatellite();
}
};
}
Also modify AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.AndroidMapper"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".AndroidMapper"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".AndroidMapView">
</activity>
<uses-library android:name="com.google.android.maps" />
</application>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-sdk android:minSdkVersion="5" />
</manifest>
Download the files.
