Hi there,
I've re-written my app a bit and have completed the token exchange
stuff. Now on app loadup, I check to see if there is a stored key, I
go right into the activity. However, whats now happening is I'm
getting an NullPointerException on this line:
Log.i("Response", result.readBodyAsString().toString());
It seems I am not getting a response body. This is the OAuthMessage I
am sending, with some stuff changed in the values TOKEN_HASH and
CONSUMER_KEY - but I can assure you these values are here:
01-14 00:37:15.341: INFO/Request(4818): OAuthMessage(GET,
http://brightkite.com/places/search.json,
[q=55.9588086605072%2C-3.1632739305496216, oauth_token=TOKEN_HASH,
oauth_consumer_key=CONSUMER_KEY, oauth_signature_method=HMAC-SHA1,
oauth_timestamp=1231893434, oauth_nonce=28181971054305,
oauth_version=1.0, oauth_signature=V6MxRdUHwUUZZBgbZjo7PW4ZQc8%3D])
package org.ifies.brightroid;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.OverlayItem;
import android.content.Context;
import android.content.Intent;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import net.oauth.OAuth;
import net.oauth.OAuthAccessor;
import net.oauth.OAuthConsumer;
import net.oauth.OAuthException;
import net.oauth.OAuthMessage;
import net.oauth.OAuthServiceProvider;
import net.oauth.client.OAuthClient;
import net.oauth.client.httpclient4.HttpClient4;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONTokener;
public class BrightroidMap extends MapActivity {
private final OAuthServiceProvider provider = new OAuthServiceProvider
(
org.ifies.brightroid.oauth.Request.OAUTH_REQUEST_TOKEN_URL,
org.ifies.brightroid.oauth.Request.OAUTH_AUTHORIZE_URL,
org.ifies.brightroid.oauth.Request.OAUTH_ACCESS_TOKEN_URL);
private final OAuthConsumer consumer = new OAuthConsumer(null //
callback URL
, org.ifies.brightroid.oauth.Request.CONSUMER_KEY //
consumer key
, org.ifies.brightroid.oauth.Request.CONSUMER_SECRET //
consumer secret
, provider);
private final OAuthAccessor accessor = new OAuthAccessor(consumer);
private final OAuthClient client = new OAuthClient(new HttpClient4
());
@SuppressWarnings("unchecked")
private class myLocationOverlay extends ItemizedOverlay {
private List<OverlayItem> items=new ArrayList();
private Drawable marker=null;
public myLocationOverlay(Drawable defaultMarker) {
super(defaultMarker);
this.marker = defaultMarker;
GeoPoint point = new GeoPoint(
(int) (myLocation.getLatitude() * 1E6),
(int) (myLocation.getLongitude() *
1E6));
items.add(new OverlayItem(point, "Me", "My Location"));
populate();
}
@Override
protected OverlayItem createItem(int i) {
// TODO Auto-generated method stub
return (OverlayItem) items.get(i);
}
public void draw(Canvas canvas, MapView mapView, boolean
shadow) {
super.draw(canvas, mapView, shadow);
boundCenterBottom(marker);
}
@Override
protected boolean onTap(int i) {
Toast.makeText(BrightroidMap.this, "Your Location",
Toast.LENGTH_SHORT).show();
return(true);
}
@Override
public int size() {
// TODO Auto-generated method stub
return(items.size());
}
}
private class myLocationListener implements LocationListener {
@Override
public void onLocationChanged(android.location.Location
location) {
// TODO Auto-generated method stub
if (location != null) {
myLocation = location;
Toast.makeText(getBaseContext(), "Location
changed to " +
location.getLatitude() + " " + location.getLongitude(),
Toast.LENGTH_SHORT).show();
Log.i("Location", location.getLatitude() + ", "
+
location.getLongitude());
GeoPoint point = new GeoPoint(
(int) (location.getLatitude() *
1E6),
(int) (location.getLongitude()
* 1E6));
controller_Mapview.animateTo(point);
controller_Mapview.setZoom(16);
Drawable
marker=getResources().getDrawable(R.drawable.icon);
marker.setBounds(0, 0,
marker.getIntrinsicWidth(),
marker.getIntrinsicHeight());
view_Mapview.getOverlays().add(new
myLocationOverlay(marker));
view_Mapview.invalidate();
locationManager.removeUpdates(myLocationListener.this);
} else {
Log.e("Location", "There was no position
returned");
}
Log.i("Activity", "We tried to update loaction");
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
Log.i("Provider", provider.toString());
}
@Override
public void onStatusChanged(String provider, int status, Bundle
extras) {
// TODO Auto-generated method stub
}
}
public static final int MY_LOCATION = Menu.FIRST;
public static final int SUBMIT_LOCATION = Menu.FIRST + 1;
public static final int EXIT_ID = Menu.FIRST + 2;
public Drawable marker;
private final int GPS_TIMEOUT = 5000;
private LocationManager locationManager;
private LocationListener locationListener;
protected Location myLocation = null;
private String accessToken;
private MapView view_Mapview;
private MapController controller_Mapview;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.location);
Bundle extras = getIntent().getExtras();
if(extras != null) {
accessToken = (String) extras.getString("accessToken");
}
accessor.accessToken = accessToken;
Log.i("Token", accessor.accessToken);
view_Mapview = (MapView) findViewById(R.id.mapview);
controller_Mapview = view_Mapview.getController();
view_Mapview.displayZoomControls(true);
locationManager = (LocationManager)getSystemService
(Context.LOCATION_SERVICE);
locationManager.getBestProvider(new Criteria(), true);
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
boolean result = super.onCreateOptionsMenu(menu);
menu.add(0, MY_LOCATION, 0, R.string.my_location);
menu.add(0, SUBMIT_LOCATION, 1, R.string.submit_location);
menu.add(0, EXIT_ID, 2, R.string.menu_exit);
return result;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MY_LOCATION:
locationListener = new myLocationListener();
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
0,
0,
locationListener
);
new Handler().postDelayed(new Runnable(){
@Override
public void run() {
locationManager.removeUpdates(locationListener);
Toast.makeText(BrightroidMap.this, "GPS Unable to
determine location. Falling back to last known location.",
Toast.LENGTH_SHORT).show();
myLocation = locationManager.getLastKnownLocation
("gps");
GeoPoint point = new GeoPoint(
(int)
(myLocation.getLatitude() * 1E6),
(int)
(myLocation.getLongitude() * 1E6));
controller_Mapview.animateTo(point);
controller_Mapview.setZoom(16);
marker=getResources().getDrawable(R.drawable.icon);
marker.setBounds(0, 0,
marker.getIntrinsicWidth(),
marker.getIntrinsicHeight());
view_Mapview.getOverlays().add(new
myLocationOverlay
(marker));
view_Mapview.invalidate();
}
}, GPS_TIMEOUT);
break;
case SUBMIT_LOCATION:
try {
OAuthMessage result = accessor.newRequestMessage
(OAuthMessage.GET,
"http://brightkite.com/places/search.json";,
OAuth.newList("q",
myLocation.getLatitude() + "," +
myLocation.getLongitude()));
Log.i("Request", result.toString());
try {
Log.i("Response",
result.readBodyAsString().toString());
} catch (IOException e) {
Log.e("Error",
e.getMessage().toString());
}
//JSONObject json_result = new JSONObject(new
JSONTokener
(result.readBodyAsString()));
//Log.i("Location ID", json_result.toString());
} catch (OAuthException e) {
// TODO Auto-generated catch block
Log.e("Error",
e.getMessage().toString());
} catch (IOException e) {
// TODO Auto-generated catch block
Log.e("Error",
e.getMessage().toString());
} catch (URISyntaxException e) {
// TODO Auto-generated catch block
Log.e("Error",
e.getMessage().toString());
}
break;
case EXIT_ID:
finish();
break;
}
return super.onOptionsItemSelected(item);
}
}
On Jan 11, 10:54 pm, Tane Piper <[email protected]> wrote:
> Hi there,
>
> Thanks - your examples are a little clearer, but I'm still having
> issues at the same point.
>
> Here is my new code:
> package org.ifies.brightroid;
>
> import android.app.Activity;
> import android.app.AlertDialog;
> import android.os.Bundle;
> import android.view.View;
> import android.view.Window;
> import android.widget.Button;
> import android.util.Log;
> import android.content.DialogInterface;
> import android.content.Intent;
>
> import org.ifies.brightroid.oauth.*;
>
> public class AppSettings extends Activity {
> private static final String OAUTH_REQUEST = "http://brightkite.com/
> oauth/request_token";
> private static final String OAUTH_AUTHORIZE = "http://brightkite.com/
> oauth/authorize";
> private static final String OAUTH_ACCESS = "http://brightkite.com/
> oauth/access_token";
>
> private static String CONSUMER_KEY = "";
> private static String CONSUMER_SECRET = "";
>
> private static Button button_auth;
> private static Button button_back_from_settings;
>
> public oAuthClient oauth_client;
>
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setNoTitle();
> setContentView(R.layout.app_settings);
>
> button_auth = (Button) findViewById(R.id.button_auth);
> button_auth.setOnClickListener(new View.OnClickListener(){
> @Override
> public void onClick(View v) {
> try {
> doLoginAuth();
> } catch (Exception e) {
> Log.e("Auth Error",
> e.getMessage().toString());
> }
> }
> });
> button_back_from_settings = (Button) findViewById
> (R.id.button_back_from_settings);
> button_back_from_settings.setOnClickListener(new
> View.OnClickListener(){
> @Override
> public void onClick(View v) {
> finish();
> }
> });
> }
>
> public void setNoTitle() {
> requestWindowFeature(Window.FEATURE_NO_TITLE);
> }
>
> public void doLoginAuth() throws Exception {
>
> try{
> ClientSettings oauth_client_settings = new ClientSettings();
> oauth_client_settings.setOAuthAccessTokenUrl(OAUTH_ACCESS);
> oauth_client_settings.setOAuthAuthorizeUrl(OAUTH_AUTHORIZE);
> oauth_client_settings.setOAuthRequestTokenUrl(OAUTH_REQUEST);
> oauth_client_settings.setConsumerToken(new Token(CONSUMER_KEY,
> CONSUMER_SECRET));
>
> oauth_client = new oAuthClient();
> oauth_client.setClientSettings(oauth_client_settings);
> String auth_url = oauth_client.getUserAuthorizationUrl();
>
> Intent auth_intent = new Intent(AppSettings.this,
> oAuthRequest.class);
> auth_intent.putExtra("BRIGHTKITE_AUTHORIZE_URL",
> auth_url);
> auth_intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
> AppSettings.this.startActivity(auth_intent);
> } catch (Exception e) {
> Log.e("oAuth Error", e.getMessage().toString());
> }
> }
>
> }
>
> Here I am using some of your code to make a simple library for oAuth.
> My second class is this:
>
> package org.ifies.brightroid;
>
> import java.util.Collection;
>
> import net.oauth.OAuthMessage;
> import android.app.Activity;
> import android.os.Bundle;
> import android.view.View;
> import android.webkit.WebView;
> import android.webkit.WebSettings;
> import android.webkit.WebViewClient;
> import android.widget.Button;
> import android.util.Log;
> import android.content.Intent;
>
> import org.ifies.brightroid.AppSettings;
> import org.ifies.brightroid.oauth.*;
>
> public class oAuthRequest extends Activity {
>
> private String url;
> private String request_token;
>
> private Button button_close_auth;
> public WebView webView;
>
> @Override
> public void onCreate(Bundle savedInstanceState) {
> Log.i("Activity", "Yea, This has been invoked!");
> super.onCreate(savedInstanceState);
>
> setContentView(R.layout.oauth_request);
>
> button_close_auth = (Button) findViewById
> (R.id.button_close_auth);
> button_close_auth.setOnClickListener(new View.OnClickListener()
> {
> @Override
> public void onClick(View v) {
>
> oAuthClient oauth_client = new
> AppSettings().oauth_client;
>
> try {
> oauth_client.fetchAccessToken();
> Token access_token =
> oauth_client.getClientSettings
> ().getUserSpecificAccessToken();
> Log.i("Public Token",
> access_token.getPublicToken());
> finish();
> } catch (Exception e) {
> Log.e("Access Token Error",
> e.getMessage().toString());
> finish();
> }
>
> }
> });
>
> Bundle extras = getIntent().getExtras();
> if(extras != null) {
> url = (String)
> extras.getString("BRIGHTKITE_AUTHORIZE_URL");
> }
>
> webView = (WebView) findViewById(R.id.wv1);
> webView.loadUrl(url);
> WebViewClient webViewClient = new WebViewClient();
> webViewClient.shouldOverrideUrlLoading(webView, url);
>
> webView.getSettings().setJavaScriptEnabled(true);
> webView.getSettings().setLoadsImagesAutomatically(true);
> webView.getSettings().setSavePassword(false);
> webView.getSettings().setSaveFormData(false);
> webView.getSettings().setSupportZoom(true);
> webView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
> webView.getSettings().setUserAgent(1);
> webView.getSettings().setSupportMultipleWindows(false);
> webView.setWebViewClient(webViewClient);
> Log.i("oAuth Request URL", url);
> }
>
> }
>
> As you can see, the user gets to auth the app in the web view, then I
> want to get the access token so I can save this, however it always
> seems to crash the app, even in a try/catch block. Any help would be
> much appreciated!
>
> On Jan 11, 9:22 pm, "Sean Sullivan" <[email protected]> wrote:
>
> > I've written two Android applications that use OAuth. The first app
> > connects to Fire Eagle via OAuth:
> > http://code.google.com/p/jfireeagle/wiki/Android
>
> > The second app connects to PortableContacts providers:
>
> > http://code.google.com/p/jpoco/wiki/Android
>
> > The source code is in SVN on code.google.com
>
> > Sean
>
> > On Sun, Jan 11, 2009 at 10:10 PM, Tane Piper
> > <[email protected]>wrote:
>
> > > Hi folks,
>
> > > I'm writing an Android app for Brightkite using the oAuth API and I've
> > > hit a bit a a stopping point. I've had a look at the example for the
> > > Desktop application and I can't work out what it's doing with
> > > overwriting the accessor. I've pasted the first part of the
> > > authorisation below, which invokes a webview to allow the app to be
> > > authed with the request token:
>
> > > package org.ifies.brightroid;
>
> > > import java.net.URL;
>
> > > import net.oauth.OAuthAccessor;
> > > import net.oauth.OAuthConsumer;
> > > import net.oauth.OAuthServiceProvider;
> > > import net.oauth.client.OAuthClient;
> > > import net.oauth.client.httpclient4.HttpClient4;
> > > import android.app.Activity;
> > > import android.app.AlertDialog;
> > > import android.os.Bundle;
> > > import android.view.View;
> > > import android.view.Window;
> > > import android.widget.Button;
> > > import android.util.Log;
> > > import android.content.DialogInterface;
> > > import android.content.Intent;
>
> > > public class AppSettings extends Activity {
> > > private static final String OAUTH_REQUEST = "http://brightkite.com/
> > > oauth/request_token <http://brightkite.com/oauth/request_token>";
> > > private static final String OAUTH_AUTHORIZE = "
> > >http://brightkite.com/
> > > oauth/authorize <http://brightkite.com/oauth/authorize>";
> > > private static final String OAUTH_ACCESS = "http://brightkite.com/
> > > oauth/access_token <http://brightkite.com/oauth/access_token>";
> > > private static final String BRIGHTKITE_AUTHORIZE_URL = "http://
> > > brightkite.com/oauth/authorize?oauth_token=";
> > > private static String CONSUMER_KEY = "";
> > > private static String CONSUMER_SECRET = "";
>
> > > public OAuthClient httpClient;
> > > public OAuthAccessor accessor;
> > > public OAuthServiceProvider provider;
> > > public OAuthConsumer consumer;
>
> > > private BrightRoid br_app;
>
> > > private static Button button_auth;
> > > private static Button button_back_from_settings;
>
> > > �...@override
> > > public void onCreate(Bundle savedInstanceState) {
> > > super.onCreate(savedInstanceState);
> > > setNoTitle();
> > > setContentView(R.layout.app_settings);
>
> > > br_app = new BrightRoid();
>
> > > button_auth = (Button) findViewById(R.id.button_auth);
> > > button_auth.setOnClickListener(new View.OnClickListener(){
> > > �...@override
> > > public void onClick(View v) {
> > > try {
> > > Log.i("Application", "We get to try very
> > > hard!");
> > > doLoginAuth();
> > > } catch (Exception e) {
> > > Log.e("Auth Error",
> > > e.getMessage().toString());
> > > }
> > > }
> > > });
> > > button_back_from_settings = (Button) findViewById
> > > (R.id.button_back_from_settings);
> > > button_back_from_settings.setOnClickListener(new
> > > View.OnClickListener(){
> > > �...@override
> > > public void onClick(View v) {
> > > finish();
> > > }
> > > });
> > > }
>
> > > public void setNoTitle() {
> > > requestWindowFeature(Window.FEATURE_NO_TITLE);
> > > }
>
> > > public void doLoginAuth() throws Exception {
> > >
>
> ...
>
> read more »
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