Im making an android app to fetch data from user and store it in a mongodb database
mongodb runs on localhost:27017 and im able to connect to it using 10.0.3.2:27017 on genymotion emulator
here is LoginActivity.java
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
import com.facebook.AccessToken;
import com.facebook.AccessTokenTracker;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.GraphRequest;
import com.facebook.GraphResponse;
import com.facebook.Profile;
import com.facebook.ProfileTracker;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.MongoClient;
import com.mongodb.MongoClientURI;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import org.bson.Document;
import org.json.JSONException;
import org.json.JSONObject;
public class LoginActivity extends AppCompatActivity {
static DB db;
static DBCollection locations;
public String name,middlename,surname,userid,profilelink,imageUrl,emailid,gender,birthday;
private CallbackManager callbackManager;
private AccessTokenTracker accessTokenTracker;
private ProfileTracker profileTracker;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());
setContentView(R.layout.activity_login);
callbackManager = CallbackManager.Factory.create();
accessTokenTracker = new AccessTokenTracker() {
#Override
protected void onCurrentAccessTokenChanged(AccessToken oldToken, AccessToken newToken) {
}
};
profileTracker = new ProfileTracker() {
#Override
protected void onCurrentProfileChanged(Profile oldProfile, Profile newProfile) {
nextActivity(newProfile);
}
};
accessTokenTracker.startTracking();
profileTracker.startTracking();
LoginButton loginButton = (LoginButton)findViewById(R.id.login_button);
FacebookCallback<LoginResult> callback = new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(LoginResult loginResult) {
Profile profile = Profile.getCurrentProfile();
nextActivity(profile);
GraphRequest request = GraphRequest.newMeRequest(AccessToken.getCurrentAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
#Override
public void onCompleted(JSONObject object, GraphResponse response) {
Log.v("JSON",response.toString());
try {
emailid=object.getString("email");
gender=object.getString("gender");
birthday=object.getString("birthday");
TextView nameView6 = (TextView)findViewById(R.id.emailr);
nameView6.setText(emailid);
TextView nameView7 = (TextView)findViewById(R.id.genderr);
nameView7.setText(gender);
TextView nameView8 = (TextView)findViewById(R.id.birthdayr);
nameView8.setText(birthday);
String[] dset={emailid,gender,birthday};
yalla(dset);
} catch (JSONException e) {
e.printStackTrace();
}
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "email,gender,birthday");
request.setParameters(parameters);
request.executeAsync();
}
#Override
public void onCancel() {
}
#Override
public void onError(FacebookException e) {
}
};
loginButton.setReadPermissions("user_friends");
loginButton.setReadPermissions("public_profile");
loginButton.setReadPermissions("email");
loginButton.setReadPermissions("user_birthday");
loginButton.registerCallback(callbackManager, callback);
}
#Override
protected void onResume() {
super.onResume();
//Facebook login
Profile profile = Profile.getCurrentProfile();
nextActivity(profile);
}
#Override
protected void onPause() {
super.onPause();
}
protected void onStop() {
super.onStop();
accessTokenTracker.stopTracking();
profileTracker.stopTracking();
}
#Override
protected void onActivityResult(int requestCode, int responseCode, Intent intent) {
super.onActivityResult(requestCode, responseCode, intent);
callbackManager.onActivityResult(requestCode, responseCode, intent);
}
private void nextActivity(Profile profile){
if(profile != null){
Intent main = new Intent(LoginActivity.this, MainActivity.class);
main.putExtra("name", profile.getFirstName());
main.putExtra("middlename", profile.getMiddleName());
main.putExtra("surname", profile.getLastName());
main.putExtra("userid", profile.getId());
main.putExtra("profilelink", profile.getLinkUri());
main.putExtra("imageUrl", profile.getProfilePictureUri(200,200).toString());
startActivity(main);
}
}
public static void yalla(String[] args){
String[] dset;
dset=args;
//try {
String uri = "mongodb://10.0.3.2:27017";
Log.v("enterhere", dset[0]);
MongoClientURI mongoClientURI=new MongoClientURI(uri);
//MongoClient mongoClient = new MongoClient("mongodb://10.0.3.2:27017/test");
Log.v("connectedserver", dset[0]);
MongoClient mongoClient = new MongoClient(mongoClientURI);
MongoDatabase database = mongoClient.getDatabase("users");
Log.v("Connect to database successfully",database.getName());
MongoCollection mongoCollection = database.getCollection("assest");
Log.v("collection", dset[0]);
Document doc = new Document("emailid", dset[0])
.append("gender", dset[1])
.append("birthday", dset[2]);
Log.v("document update", dset[0]);
mongoCollection.insertOne(doc);
Log.v("doc insertion", dset[0]);
mongoClient.close();
//} catch (MongoException e)
//{
// e.getStackTrace();
//}
}
}
Error on android studio
V/document update: zissujith#gmail.com
I/cluster: No server chosen by PrimaryServerSelector from cluster description ClusterDescription{type=UNKNOWN, connectionMode=SINGLE, all=[ServerDescription{address=10.0.3.2:27017, type=UNKNOWN, state=CONNECTING}]}. Waiting for 30000 ms before timing out
I/connection: Opened connection [connectionId{localValue:1, serverValue:17}] to 10.0.3.2:27017
I/cluster: Monitor thread successfully connected to server with description ServerDescription{address=10.0.3.2:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 0, 14]}, minWireVersion=0, maxWireVersion=3, electionId=null, maxDocumentSize=16777216, roundTripTimeNanos=9233253}
D/dalvikvm: GC_CONCURRENT freed 413K, 5% free 12382K/12935K, paused 11ms+1ms, total 17ms
I/connection: Closed connection [connectionId{localValue:2}] to 10.0.3.2:27017 because the underlying connection was closed.
D/AndroidRuntime: Shutting down VM
W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0xa62fe288)
E/AndroidRuntime: FATAL EXCEPTION: main
com.mongodb.MongoException: android.os.NetworkOnMainThreadException
at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:125)
at com.mongodb.connection.UsageTrackingInternalConnection.open(UsageTrackingInternalConnection.java:46)
at com.mongodb.connection.DefaultConnectionPool$PooledConnection.open(DefaultConnectionPool.java:366)
at com.mongodb.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:94)
at com.mongodb.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:80)
at com.mongodb.connection.DefaultServer.getConnection(DefaultServer.java:69)
at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.getConnection(ClusterBinding.java:86)
at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:184)
at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:177)
at com.mongodb.operation.MixedBulkWriteOperation.execute(MixedBulkWriteOperation.java:141)
at com.mongodb.operation.MixedBulkWriteOperation.execute(MixedBulkWriteOperation.java:72)
at com.mongodb.Mongo.execute(Mongo.java:747)
at com.mongodb.Mongo$2.execute(Mongo.java:730)
at com.mongodb.MongoCollectionImpl.executeSingleWriteRequest(MongoCollectionImpl.java:482)
at com.mongodb.MongoCollectionImpl.insertOne(MongoCollectionImpl.java:277)
at com.sujithsizon.lzlogin3.LoginActivity.yalla(LoginActivity.java:224)
at com.sujithsizon.lzlogin3.LoginActivity$3$1.onCompleted(LoginActivity.java:99)
at com.facebook.GraphRequest$1.onCompleted(GraphRequest.java:304)
at com.facebook.GraphRequest$5.run(GraphRequest.java:1368)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)
at libcore.io.IoBridge.connectErrno(IoBridge.java:144)
at libcore.io.IoBridge.connect(IoBridge.java:112)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
at java.net.Socket.connect(Socket.java:842)
at com.mongodb.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:50)
at com.mongodb.connection.SocketStream.open(SocketStream.java:58)
at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:114)
at com.mongodb.connection.UsageTrackingInternalConnection.open(UsageTrackingInternalConnection.java:46)
at com.mongodb.connection.DefaultConnectionPool$PooledConnection.open(DefaultConnectionPool.java:366)
at com.mongodb.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:94)
at com.mongodb.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:80)
at com.mongodb.connection.DefaultServer.getConnection(DefaultServer.java:69)
at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.getConnection(ClusterBinding.java:86)
at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:184)
at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:177)
at com.mongodb.operation.MixedBulkWriteOperation.execute(MixedBulkWriteOperation.java:141)
at com.mongodb.operation.MixedBulkWriteOperation.execute(MixedBulkWriteOperation.java:72)
at com.mongodb.Mongo.execute(Mongo.java:747)
at com.mongodb.Mongo$2.execute(Mongo.java:730)
at com.mongodb.MongoCollectionImpl.executeSingleWriteRequest(MongoCollectionImpl.java:482)
at com.mongodb.MongoCollectionImpl.insertOne(MongoCollectionImpl.java:277)
at com.sujithsizon.lzlogin3.LoginActivity.yalla(LoginActivity.java:224)
at com.sujithsizon.lzlogin3.LoginActivity$3$1.onCompleted(LoginActivity.java:99)
at com.facebook.GraphRequest$1.onCompleted(GraphRequest.java:304)
at com.facebook.GraphRequest$5.run(GraphRequest.java:1368)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
You can use Async Task for this. I don't know much about mongoDB, but assuming your yalla method has heavy network operation which includes mongoDB.
Try to add yalla method into new AyancTask.
private class DownloadFilesTask extends AsyncTask<URL, Integer, Long> {
protected Long doInBackground(URL... urls) {
//Include your mongoDB accessing method here, in background thread.
}
}
And you can execute this method by the following line from your activity.
new DownloadFilesTask().execute(url1, url2, url3);
Hope this helps.
EDIT: Now you are including your method in AsyncTask, and passing URL as arguments, Just provide the links via execute() method. No need to use this String[] = args, which currently you are using in your methos.
For more details on AsyncTask, refer the official docs from this link :)
I am actually trying to do the same and found mongoclient won't work so I used the common class to connect to my server on mlab then I used an asynkTask inner class with HTTPUrlConnection to get the data I stored, check out this link for querying urls for mlab-> http://docs.mlab.com/data-api/
Also check this out-> https://m.youtube.com/watch?v=RSZ2pyhfR0I
public class Common {
private static String DB_NAME = "edmtdev";
private static String COLLECTION_NAME = "user";
public static String API_KEY = "YOUR API KEY";
public static String getAddressSingle(User user) {
String baseUrl = String.format("https://api.mlab.com/api/1/databases/%s/collections/%s", DB_NAME, COLLECTION_NAME);
StringBuilder stringBuilder = new StringBuilder(baseUrl);
stringBuilder.append("/"+user.get_id().getOid()+"?apiKey="+API_KEY);
return stringBuilder.toString():
}
i made a small method to check whether defined folder has files with a specific extension or not. I m getting null point exception on run.pls help to find mistake.method is checking .mp4 files and returning true if found and message is displayed.
Here is Code:
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView filecheck;
filecheck = (TextView) findViewById(R.id.filecheck);
filecheck.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (accept()) {
Toast.makeText(MainActivity.this, "Files Found", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(MainActivity.this, "Files Not Found", Toast.LENGTH_SHORT).show();
}
}
});
}
public boolean accept() {
final File pathname = new File("/sdcard/test/");
String files[] = pathname.list();
System.out.println(files.length);
for (String s : files) {
if (s.contains(".mp4")) {
System.out.println(s);
return true;
}
return false;
}
return false;
}
}
Here is exception:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: jss.testmethods, PID: 23659
java.lang.NullPointerException
at jss.testmethods.MainActivity.accept(MainActivity.java:38)
at jss.testmethods.MainActivity$1.onClick(MainActivity.java:24)
at android.view.View.performClick(View.java:4478)
at android.view.View$PerformClick.run(View.java:18698)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:149)
at android.app.ActivityThread.main(ActivityThread.java:5257)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)
at dalvik.system.NativeStart.main(Native Method)
i was expecting simple error, i missed to add permission for read storage. it is working now.
I used Android native Sip api to initialize Sip client.Because I am confused to Sip protocol,I read the android developer document about sip and follow it.When I run my application on Nexus5,it work normally,but when I run it on other device like coolpad, it throw NullPointException from SipManager.The following is my code.For some reason,the username,passwd and domain is private.
public static SipManager manager;
public static SipProfile me;
public static String username;
public static String passwd;
public static void initializeSip(Context context) {
System.out.println("initializeSip");
if (manager == null) {
manager = SipManager.newInstance(context);
}
if (me != null) {
closeLocalProfile();
}
username = SharedPreferences.getLoginInfo().getModel().getVos_phone();
passwd = SharedPreferences.getLoginInfo().getModel().getVos_phone_pwd();
try {
if (!(SipManager.isApiSupported(context) && SipManager.isVoipSupported(context))) {
System.out.println("cannot support");
return;
}
System.out.println("isApiSupported="+SipManager.isApiSupported(context));
System.out.println("SipManager="+SipManager.newInstance(context));
SipProfile.Builder builder = new SipProfile.Builder(username, domain);
builder.setPassword(passwd);
me = builder.build();
manager.open(me);
SipRegistrationListener listener = new SipRegistrationListener() {
#Override
public void onRegistering(String localProfileUri) {
System.out.println("Registering with SIP Server");
}
#Override
public void onRegistrationDone(String localProfileUri, long expiryTime) {
System.out.println("Register success");
}
#Override
public void onRegistrationFailed(String localProfileUri, int errorCode, String errorMessage) {
System.out.println("Registeration failed.Please check Settings.");
System.out.println("errorCode="+errorCode);
System.out.println("errorMessage="+errorMessage);
}
};
manager.setRegistrationListener(me.getUriString(),listener);
manager.register(me,3000,listener);
} catch (ParseException e) {
e.printStackTrace();
} catch (SipException e) {
e.printStackTrace();
}
}
The following is my logcat. Most strangely,I find that the api isApiSupported return true and the SipManager object is not null.I cannot find the reason about it.
1.741 30654-30654/com.dev.goldunion I/System.out: initializeSip
05-18 20:11:41.741 30654-30654/com.dev.goldunion I/System.out: isApiSupported=true
05-18 20:11:41.751 30654-30654/com.dev.goldunion I/System.out: SipManager=android.net.sip.SipManager#426af938
05-18 20:11:41.751 30654-30654/com.dev.goldunion D/AndroidRuntime: Shutting down VM
05-18 20:11:41.751 30654-30654/com.dev.goldunion W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x41692970)
05-18 20:11:41.751 30654-30654/com.dev.goldunion E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.dev.goldunion/com.dev.goldunion.activity.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2227)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2282)
at android.app.ActivityThread.access$600(ActivityThread.java:147)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1272)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5265)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:760)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at android.net.sip.SipManager.open(SipManager.java:180)
at com.dev.goldunion.util.RegisterSipAccountUtils.initializeSip(RegisterSipAccountUtils.java:49)
at com.dev.goldunion.activity.MainActivity.onCreate(MainActivity.java:77)
at android.app.Activity.performCreate(Activity.java:5146)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1090)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2191)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2282)
at android.app.ActivityThread.access$600(ActivityThread.java:147)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1272)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5265)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:760)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
at dalvik.system.NativeStart.main(Native Method)
I'm new at android programming, I want to fetch Parse in ListView arrangement and i found the perfect guide, but i cant really implement it on my code.
I have browse a lot for 2 days and i give up.
Here's the error
E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #1
Process: com.example.osbert.buttons, PID: 2732
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.RuntimeException: You must call Parse.initialize(context, oauthKey, oauthSecret) before using the Parse library.
at com.parse.ParseUser.checkApplicationContext(ParseUser.java:1426)
at com.parse.ParseUser.getCurrentUserAsync(ParseUser.java:1048)
at com.parse.ParseUser.access$900(ParseUser.java:27)
at com.parse.ParseUser$9.then(ParseUser.java:1041)
at com.parse.ParseUser$9.then(ParseUser.java:1038)
at com.parse.TaskQueue.enqueue(TaskQueue.java:61)
at com.parse.ParseUser.getCurrentUserAsync(ParseUser.java:1038)
at com.parse.ParseUser.getCurrentUserAsync(ParseUser.java:1001)
at com.parse.ParseQuery.getUserAsync(ParseQuery.java:352)
at com.parse.ParseQuery.access$1600(ParseQuery.java:78)
at com.parse.ParseQuery$15.call(ParseQuery.java:1000)
at com.parse.ParseQuery$15.call(ParseQuery.java:997)
at com.parse.ParseQuery.doWithRunningCheck(ParseQuery.java:936)
at com.parse.ParseQuery.findInBackground(ParseQuery.java:997)
at com.parse.ParseQuery.find(ParseQuery.java:588)
at com.example.osbert.buttons.RestaurantList$RemoteDataTask.doInBackground(RestaurantList.java:60)
at com.example.osbert.buttons.RestaurantList$RemoteDataTask.doInBackground(RestaurantList.java:34)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
E/WindowManager﹕ android.view.WindowLeaked: Activity com.example.osbert.buttons.RestaurantList has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{27bb5583 V.E..... R......D 0,0-729,322} that was originally added here
at android.view.ViewRootImpl.<init>(ViewRootImpl.java:363)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:261)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
at android.app.Dialog.show(Dialog.java:298)
at com.example.osbert.buttons.RestaurantList$RemoteDataTask.onPreExecute(RestaurantList.java:46)
at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:587)
at android.os.AsyncTask.execute(AsyncTask.java:535)
at com.example.osbert.buttons.RestaurantList.onCreate(RestaurantList.java:30)
at android.app.Activity.performCreate(Activity.java:5937)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
at android.app.ActivityThread.access$800(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
And here's my code
package com.example.osbert.buttons;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.ListView;
import com.parse.ParseException;
import com.parse.ParseFile;
import com.parse.ParseObject;
import com.parse.ParseQuery;
public class RestaurantList extends Activity {
// Declare Variables
ListView listview;
List<ParseObject> ob;
ProgressDialog mProgressDialog;
ListViewAdapter adapter;
private List<WorldPopulation> worldpopulationlist = null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the view from listview_main.xml
setContentView(R.layout.listview_main);
// Execute RemoteDataTask AsyncTask
new RemoteDataTask().execute();
}
// RemoteDataTask AsyncTask
private class RemoteDataTask extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Create a progressdialog
mProgressDialog = new ProgressDialog(RestaurantList.this);
// Set progressdialog title
mProgressDialog.setTitle("Loading");
// Set progressdialog message
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
// Show progressdialog
mProgressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
// Create the array
worldpopulationlist = new ArrayList<WorldPopulation>();
try {
// Locate the class table named "Country" in Parse.com
ParseQuery<ParseObject> query = new ParseQuery<ParseObject>(
"Country");
// Locate the column named "ranknum" in Parse.com and order list
// by ascending
query.orderByAscending("ranknum");
ob = query.find();
for (ParseObject country : ob) {
// Locate images in flag column
ParseFile image = (ParseFile) country.get("flag");
WorldPopulation map = new WorldPopulation();
map.setRank((String) country.get("rank"));
map.setCountry((String) country.get("country"));
map.setPopulation((String) country.get("population"));
map.setFlag(image.getUrl());
worldpopulationlist.add(map);
}
} catch (ParseException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void result) {
// Locate the listview in listview_main.xml
listview = (ListView) findViewById(R.id.listview);
// Pass the results into ListViewAdapter.java
adapter = new ListViewAdapter(RestaurantList.this,
worldpopulationlist);
// Binds the Adapter to the ListView
listview.setAdapter(adapter);
// Close the progressdialog
mProgressDialog.dismiss();
finish();
}
}
}
Pls help :((
Thanks in advance
Have you even tried resolving this?
Caused by: java.lang.RuntimeException: You must call Parse.initialize(context, oauthKey, oauthSecret) before using the Parse library?
Its the cause of the crash.
Also why are you calling finish() i onPostExecute?! It will close your activity...and i suppose you would like to see the results in your list view?
U error Logs says the solution.....
Caused by: java.lang.RuntimeException: You must call Parse.initialize(context, oauthKey, oauthSecret) before using the Parse library.
at com.parse.ParseUser.checkApplicationContext(ParseUser.java:1426)
I am having trouble with developing my Android application, I am currently using Eclipse and a Phidget RFID. My aim is to display the ID of the RFID in a piece of text on the Android device.
I have managed to display the ID through a println in the following pieces of code.
package myFood.myFood;
import com.phidgets.*;
import com.phidgets.event.*;
public class RFID {
static String x ="NULL";
public static final Object main(String args[]) throws Exception {
RFIDPhidget rfid;
rfid = new RFIDPhidget();
rfid.openAny();
//Begin the TagGained event, allowing for users to read the RFID values
rfid.addTagGainListener(new TagGainListener()
{
public void tagGained(TagGainEvent oe)
{
Object y = (oe.getValue());
x= y.toString();
}
});
long StartTime,RunTime;
StartTime=System.currentTimeMillis();
do{
RunTime=System.currentTimeMillis();
if (x.equals("NULL")) {
//Continue waiting for input
}
else
StartTime = 10000; //Overload the result so the loop ends
}
while (RunTime-StartTime<5000);
rfid.close();
return x;
}
}
and then.
package myFood.myFood;
public class RFIDresult {
public static final Object main(String args[]) throws Exception {
System.out.println("Results");
Object x = RFID.main(args);
System.out.println(x);
return x;
}
}
However I want the ID to be displayed in a piece of text so I tried to develop the second piece of code into Android.
package myFood.myFood;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class AddFood extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.addfood);
Button mybutton = (Button) findViewById(R.id.Button1);
mybutton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String[] args = null;
Object x = null;
try {
x = RFID.main(args);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
TextView mytext=(TextView)findViewById(R.id.widget96);
mytext.setText((CharSequence) x);
}
});
}
}
And this just generates a force close. I am a bit of a novice at this and will appreciate all the advice I get.
LogCat Report;
ERROR/AndroidRuntime(519): FATAL EXCEPTION: main
ERROR/AndroidRuntime(519): java.lang.ExceptionInInitializerError
ERROR/AndroidRuntime(519): at myFood.myFood.RFID.main(RFID.java:9)
ERROR/AndroidRuntime(519): at myFood.myFood.AddFood$1.onClick(AddFood.java:26)<br/>
ERROR/AndroidRuntime(519): at android.view.View.performClick(View.java:2408)
ERROR/AndroidRuntime(519): at android.view.View$PerformClick.run(View.java:8816)
ERROR/AndroidRuntime(519): at android.os.Handler.handleCallback(Handler.java:587)
ERROR/AndroidRuntime(519): at android.os.Handler.dispatchMessage(Handler.java:92)
ERROR/AndroidRuntime(519): at android.os.Looper.loop(Looper.java:123)
ERROR/AndroidRuntime(519): at android.app.ActivityThread.main(ActivityThread.java:4627)
ERROR/AndroidRuntime(519): at java.lang.reflect.Method.invokeNative(Native Method)
ERROR/AndroidRuntime(519): at java.lang.reflect.Method.invoke(Method.java:521)
ERROR/AndroidRuntime(519): at om.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
ERROR/AndroidRuntime(519): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
ERROR/AndroidRuntime(519): at dalvik.system.NativeStart.main(Native Method)
ERROR/AndroidRuntime(519): Caused by: java.lang.ExceptionInInitializerError: Library phidget21 not found
ERROR/AndroidRuntime(519): Could not locate the Phidget C library (libphidget21.so).
ERROR/AndroidRuntime(519): Make sure it is installed, and add it's path to LD_LIBRARY_PATH.
ERROR/AndroidRuntime(519): at com.phidgets.Phidget.<clinit>(Phidget.java:34)
ERROR/AndroidRuntime(519): ... 13 more
You need to get myText from 'view' parameter. Try this:
TextView mytext=(TextView)**view**.findViewById(R.id.widget96);