/**
* Copyright 2010-present Facebook.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.facebook.samples.placepicker;
import android.app.AlertDialog;
import android.content.Context;
import android.content.Intent;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import com.facebook.SessionState;
import com.facebook.UiLifecycleHelper;
import com.facebook.model.GraphLocation;
import com.facebook.model.GraphPlace;
import com.facebook.Session;
public class PlacePickerSampleActivity extends FragmentActivity implements LocationListener {
private static final int PLACE_ACTIVITY = 1;
private static final Location SEATTLE_LOCATION = new Location("") {
{
setLatitude(47.6097);
setLongitude(-122.3331);
}
};
private static final Location SAN_FRANCISCO_LOCATION = new Location("") {
{
setLatitude(37.7750);
setLongitude(-122.4183);
}
};
private static final Location PARIS_LOCATION = new Location("") {
{
setLatitude(48.857875);
setLongitude(2.294635);
}
};
private TextView resultsTextView;
private LocationManager locationManager;
private Location lastKnownLocation;
private UiLifecycleHelper lifecycleHelper;
private Location pickPlaceForLocationWhenSessionOpened = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
resultsTextView = (TextView) findViewById(R.id.resultsTextView);
Button button = (Button) findViewById(R.id.seattleButton);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
onClickSeattle();
}
});
button = (Button) findViewById(R.id.sanFranciscoButton);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
onClickSanFrancisco();
}
});
button = (Button) findViewById(R.id.gpsButton);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
onClickGPS();
}
});
lifecycleHelper = new UiLifecycleHelper(this, new Session.StatusCallback() {
@Override
public void call(Session session, SessionState state, Exception exception) {
onSessionStateChanged(session, state, exception);
}
});
lifecycleHelper.onCreate(savedInstanceState);
ensureOpenSession();
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
}
private boolean ensureOpenSession() {
if (Session.getActiveSession() == null ||
!Session.getActiveSession().isOpened()) {
Session.openActiveSession(this, true, new Session.StatusCallback() {
@Override
public void call(Session session, SessionState state, Exception exception) {
onSessionStateChanged(session, state, exception);
}
});
return false;
}
return true;
}
@Override
protected void onStart() {
super.onStart();
// Update the display every time we are started (this will be "no place selected" on first
// run, or possibly details of a place if the activity is being re-created).
displaySelectedPlace(RESULT_OK);
}
@Override
protected void onDestroy() {
super.onDestroy();
lifecycleHelper.onDestroy();
}
@Override
protected void onPause() {
super.onPause();
lifecycleHelper.onPause();
}
@Override
protected void onResume() {
super.onResume();
lifecycleHelper.onResume();
}
private void onError(Exception exception) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Error").setMessage(exception.getMessage()).setPositiveButton("OK", null);
builder.show();
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
lifecycleHelper.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case PLACE_ACTIVITY:
displaySelectedPlace(resultCode);
break;
default:
break;
}
}
private void onSessionStateChanged(Session session, SessionState state, Exception exception) {
if (pickPlaceForLocationWhenSessionOpened != null && state.isOpened()) {
Location location = pickPlaceForLocationWhenSessionOpened;
pickPlaceForLocationWhenSessionOpened = null;
startPickPlaceActivity(location);
}
}
private void displaySelectedPlace(int resultCode) {
String results = "";
PlacePickerApplication application = (PlacePickerApplication) getApplication();
GraphPlace selection = application.getSelectedPlace();
if (selection != null) {
GraphLocation location = selection.getLocation();
results = String.format("Name: %s\nCategory: %s\nLocation: (%f,%f)\nStreet: %s, %s, %s, %s, %s",
selection.getName(), selection.getCategory(),
location.getLatitude(), location.getLongitude(),
location.getStreet(), location.getCity(), location.getState(), location.getZip(),
location.getCountry());
} else {
results = "<No place selected>";
}
resultsTextView.setText(results);
}
public void onLocationChanged(Location location) {
lastKnownLocation = location;
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
private void startPickPlaceActivity(Location location) {
if (ensureOpenSession()) {
PlacePickerApplication application = (PlacePickerApplication) getApplication();
application.setSelectedPlace(null);
Intent intent = new Intent(this, PickPlaceActivity.class);
PickPlaceActivity.populateParameters(intent, location, null);
startActivityForResult(intent, PLACE_ACTIVITY);
} else {
pickPlaceForLocationWhenSessionOpened = location;
}
}
private void onClickSeattle() {
try {
startPickPlaceActivity(SEATTLE_LOCATION);
} catch (Exception ex) {
onError(ex);
}
}
private void onClickSanFrancisco() {
try {
startPickPlaceActivity(SAN_FRANCISCO_LOCATION);
} catch (Exception ex) {
onError(ex);
}
}
private void onClickGPS() {
try {
if (lastKnownLocation == null) {
Criteria criteria = new Criteria();
String bestProvider = locationManager.getBestProvider(criteria, false);
if (bestProvider != null) {
lastKnownLocation = locationManager.getLastKnownLocation(bestProvider);
}
}
if (lastKnownLocation == null) {
String model = android.os.Build.MODEL;
if (model.equals("sdk") || model.equals("google_sdk") || model.contains("x86")) {
// Looks like they are on an emulator, pretend we're in Paris if we don't have a
// location set.
lastKnownLocation = PARIS_LOCATION;
} else {
onError(new Exception(getString(R.string.no_location)));
return;
}
}
startPickPlaceActivity(lastKnownLocation);
} catch (Exception ex) {
onError(ex);
}
}
}