i download this example from the net and i want modify to sent a Obj student from a service to activity already run.
This is the code, the communication from service to activity it's work fine, but the object arrived empty.
Main Activity:
package com.websmithing.broadcasttest;
import com.websmithing.broadcasttest.Student;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
public class BroadcastTest extends Activity {
private static final String TAG = "BroadcastTest";
private Intent intent;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
intent = new Intent(this, BroadcastService.class);
}
private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
updateUI(intent);
}
};
#Override
public void onResume() {
super.onResume();
startService(intent);
registerReceiver(broadcastReceiver, new IntentFilter(
BroadcastService.BROADCAST_ACTION));
}
#Override
public void onPause() {
super.onPause();
unregisterReceiver(broadcastReceiver);
stopService(intent);
}
private void updateUI(Intent intent) {
// String counter = intent.getStringExtra("studente");
Student student = (Student) getIntent().getParcelableExtra("student");
Log.d(TAG, "Ricevuto");
if (student != null) {
TextView txtCounter = (TextView) findViewById(R.id.txtCounter);
txtCounter.setText(student.mSAge);
} else {
Log.d(TAG, "Sudente Vuoto");
}
}
}
The Service:
package com.websmithing.broadcasttest;
import com.websmithing.broadcasttest.Student;
import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.util.Log;
public class BroadcastService extends Service {
private static final String TAG = "BroadcastService";
public static final String BROADCAST_ACTION = "com.websmithing.broadcasttest.displayevent";
private final Handler handler = new Handler();
Intent intent;
int counter = 0;
public Student student = new Student("Mario", 20, "Calatafimi", "Informatica");
#Override
public void onCreate() {
super.onCreate();
intent = new Intent(BROADCAST_ACTION);
}
#Override
public void onStart(Intent intent, int startId) {
handler.removeCallbacks(sendUpdatesToUI);
handler.postDelayed(sendUpdatesToUI, 1000); // 1 second
}
private Runnable sendUpdatesToUI = new Runnable() {
public void run() {
DisplayLoggingInfo();
handler.postDelayed(this, 5000); // 10 seconds
}
};
private void DisplayLoggingInfo() {
Log.d(TAG, "entered DisplayLoggingInfo");
intent.putExtra("studente", student);
sendBroadcast(intent);
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onDestroy() {
handler.removeCallbacks(sendUpdatesToUI);
super.onDestroy();
}
}
The class Student:
package com.websmithing.broadcasttest;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.Log;
public class Student implements Parcelable{
String mSName;
int mSAge;
String mSAddress;
String mSCourse;
#Override
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}
/*
* Storing the Student data to Parcel object
*/
#Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(mSName);
dest.writeInt(mSAge);
dest.writeString(mSAddress);
dest.writeString(mSCourse);
}
/*
* A constructor that initializes the Student object
*/
public Student(String sName, int sAge, String sAddress, String sCourse){
this.mSName = sName;
this.mSAge = sAge;
this.mSAddress = sAddress;
this.mSCourse = sCourse;
}
/*
* Retrieving Student data from Parcel object
* This constructor is invoked by the method createFromParcel(Parcel source) of
* the object CREATOR
*/
private Student(Parcel in){
this.mSName = in.readString();
this.mSAge = in.readInt();
this.mSAddress = in.readString();
this.mSCourse = in.readString();
}
public static final Parcelable.Creator<Student> CREATOR = new Parcelable.Creator<Student>() {
#Override
public Student createFromParcel(Parcel source) {
return new Student(source);
}
#Override
public Student[] newArray(int size) {
return new Student[size];
}
};
}
Many thanks!!!
May be the problem is you send from Service:
intent.putExtra("studente", student);
and want to receive in Activity:
Student student = (Student) getIntent().getParcelableExtra("student");
student - studentE
Make keys the same and try again, please
Hope it helps
UPD: The problem is in your Activity updateUI method:
private void updateUI(Intent intent) {
// String counter = intent.getStringExtra("studente");
Student student = (Student) getIntent().getParcelableExtra("student");
Log.d(TAG, "Ricevuto");
if (student != null) {
TextView txtCounter = (TextView) findViewById(R.id.txtCounter);
txtCounter.setText(student.mSAge);
} else {
Log.d(TAG, "Sudente Vuoto");
}
}
You use getIntent() but you should use intent provided in method params updateUI(Intent intent).
So, please, change this line:
Student student = getIntent().getParcelableExtra("student");
to
Student student = intent.getParcelableExtra("student");
and try again
Related
I have a problem with an activity after minimalising. Everything is going ok when i start an activity and press start button. But when i minimalise activity and again maximalize it, it doesnt respond to my buttons and commands. Anybody know what to do? This is my first android app so i dont know what is going on..
here are my classes :
TrackerService
package sk.tuke.smart.makac.services;
import android.app.Service;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import java.util.ArrayList;
import java.util.Timer;
import java.util.TimerTask;
public class TrackerService extends Service implements LocationListener {
private Intent commandIntent;
private long duration;
private boolean paused,checkedAfterPause;
private int sportActivity;
private double distance,pace,calories;
private ArrayList<Location> finalPositionList = new ArrayList<Location>();
private LocationManager locationManager;
private static final String TAG = "TrackerService";
#Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
Log.i(TAG,"onStart intent " +intent.getAction());
commandIntent=intent;
checkedAfterPause=true;
if(intent.getAction() == "sk.tuke.smart.makac.COMMAND_START"){
if(intent.getAction() == "sk.tuke.smart.makac.COMMAND_START") {
duration = 0;
}
new Timer().scheduleAtFixedRate(new TimerTask()
{
#Override
public void run() {
if(!paused){
duration++;
Intent intent1 = new Intent();
intent1.setAction("sk.tuke.smart.makac.TICK");
intent1.putExtra("duration", duration);
intent1.putExtra("distance",distance);
sendBroadcast(intent1);
Log.i(TAG,"" + duration);
}
}
}, 1000, 1000);
}else if (intent.getAction() == "sk.tuke.smart.makac.COMMAND_PAUSE"){
paused=true;
locationManager.removeUpdates(this);
}
if(intent.getAction() == "sk.tuke.smart.makac.COMMAND_CONTINUE"){
paused=false;
checkedAfterPause=false;
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,3000,10,this);
}
}
#Override
public void onCreate() {
super.onCreate();
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,3000,10,this);
}
#Override
public void onDestroy() {
locationManager.removeUpdates(this);
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
#Override
public void onLocationChanged(Location location) {
finalPositionList.add(location);
Location lastLocation;
double minDistance;
if (finalPositionList.size() != 1 && checkedAfterPause) {
lastLocation = finalPositionList.get(finalPositionList.size() - 2);
minDistance=location.distanceTo(lastLocation);
if(minDistance>=2){
distance += location.distanceTo(lastLocation);
}else{
finalPositionList.remove(finalPositionList.size()-1);
}
}
if(commandIntent.getAction() == "sk.tuke.smart.makac.COMMAND_CONTINUE" && !checkedAfterPause){
Log.i(TAG,"checking distance after pause");
lastLocation = finalPositionList.get(finalPositionList.size() - 2);
minDistance=location.distanceTo(lastLocation);
if(minDistance<=100){
distance += location.distanceTo(lastLocation);
}
checkedAfterPause=true;
}
Log.i(TAG,"locations " + finalPositionList);
Log.i(TAG,"distance = " + distance);
}
#Override
public void onStatusChanged(String s, int i, Bundle bundle) {
}
#Override
public void onProviderEnabled(String s) {
}
#Override
public void onProviderDisabled(String s) {
}
public long getDuration(){
return duration;
}
public double getPace(){
return pace;
}
}
SportsActivity
package sk.tuke.smart.makac;
import android.Manifest;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import sk.tuke.smart.makac.helpers.MainHelper;
import sk.tuke.smart.makac.services.TrackerService;
public class StopwatchActivity extends AppCompatActivity {
private static final int MY_PERMISSIONS_REQUEST_FINE_LOCATION = 111;
private static final String TAG = "StopwatchActivity";
private boolean started;
private boolean running;
private boolean paused=false;
private long duration;
private double distance;
private MainHelper helper;
private TextView durationView,distanceView;
private Button startButton,endButton;
private BroadcastReceiver receiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction()=="sk.tuke.smart.makac.TICK"){
duration = intent.getLongExtra("duration",duration);
distance = intent.getDoubleExtra("distance",distance);
durationView.setText(helper.formatDuration(duration));
distanceView.setText(helper.formatDistance(distance));
}
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_stopwatch);
IntentFilter intentFilter = new IntentFilter("sk.tuke.smart.makac.TICK");
registerReceiver(receiver,intentFilter);
started=false;
running=false;
helper = new MainHelper();
durationView = findViewById(R.id.textview_stopwatch_duration);
distanceView = findViewById(R.id.textview_stopwatch_distance);
startButton = findViewById(R.id.button_stopwatch_start);
endButton = findViewById(R.id.button_stopwatch_endworkout);
if(!canAccessLocation()){
ActivityCompat.requestPermissions(this,
new String[]{
Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_FINE_LOCATION);
}
}
public void toggle(View view){
Intent intent = new Intent(this,TrackerService.class);
started=true;
this.running = !this.running;
if(running && started){
startButton.setText("Stop");
endButton.setVisibility(view.GONE);
if(paused){
intent.setAction("sk.tuke.smart.makac.COMMAND_CONTINUE");
paused=false;
}else
intent.setAction("sk.tuke.smart.makac.COMMAND_START");
}
if(!running && started){
startButton.setText("Continue");
endButton.setVisibility(view.VISIBLE);
intent.setAction("sk.tuke.smart.makac.COMMAND_PAUSE");
paused=true;
}
startService(intent);
}
public void endWorkout(View view){
Intent intent = new Intent(this,TrackerService.class);
intent.setAction("sk.tuke.smart.makac.COMMAND_STOP");
startService(intent);
setContentView(R.layout.activity_workout_detail);
onStop();
}
public void openMaps(View view){
Intent intent = new Intent(StopwatchActivity.this, MapsActivity.class);
startActivity(intent);
}
#Override
protected void onStart() {
super.onStart();
}
#Override
protected void onStop() {
super.onStop();
Intent intent= new Intent(this,TrackerService.class);
stopService(intent);
}
private boolean hasPermission(String perm) {
return(PackageManager.PERMISSION_GRANTED==checkSelfPermission(perm));
}
private boolean canAccessLocation() {
return(hasPermission(Manifest.permission.ACCESS_FINE_LOCATION));
}
}
You aren't creating a connection to the service. You're only starting it, not binding it. So there's no connection to maintain.
It looks like you're trying to do quasi-binding via actions. Don't do that, properly bind the service and avoid a whole raft of problems like this.
hello i am new in signalR i am making one chating app with using signalR i take reference from SignalR integration in android studio here with the help of this i able to send the messages to the chat group but i am not able to receive messages i read lots of Q&A here but i am not able to solve this problem i paste here my code and please anyone tell me how do i receive message from the server.following is my code.
Activity main
package myapp.chatapp;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.res.Configuration;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.Toast;
import com.google.gson.JsonElement;
import java.util.ArrayList;
import microsoft.aspnet.signalr.client.MessageReceivedHandler;
import microsoft.aspnet.signalr.client.Platform;
import microsoft.aspnet.signalr.client.http.android.AndroidPlatformComponent;
import microsoft.aspnet.signalr.client.hubs.HubConnection;
import microsoft.aspnet.signalr.client.hubs.HubProxy;
import microsoft.aspnet.signalr.client.hubs.SubscriptionHandler2;
import microsoft.aspnet.signalr.client.transport.ClientTransport;
import microsoft.aspnet.signalr.client.transport.LongPollingTransport;
public class MainActivity extends AppCompatActivity implements SignalRService.Something {
private StringBuilder mLog;
private ListView mTestCaseList;
private Spinner mTestGroupSpinner;
private HubConnection mHubConnection;
private HubProxy mHubProxy;
private final Context mContext = this;
private SignalRService mService;
private SignalRService mMessageResive;
private boolean mBound = false;
ListView list_item;
EditText editText;
ArrayList<String> listItems;
ArrayAdapter<String> adapter;
ClientTransport transport;
private Handler mHandler; // to display Toast message
private Thread t;
#Override
public void onConfigurationChanged(Configuration newConfig) {
// don't restart the activity. Just process the configuration change
super.onConfigurationChanged(newConfig);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent intent = new Intent();
intent.setClass(mContext, SignalRService.class);
bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
editText = (EditText)findViewById(R.id.edit_message);
ImageButton btn = (ImageButton)findViewById(R.id.btn);
list_item = (ListView)findViewById(R.id.list_item);
listItems = new ArrayList<String>();
/*listItems.add("First Item - added on Activity Create");*/
/* adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, listItems);*/
adapter = new ArrayAdapter<String>(mContext,R.layout.custom_list, R.id.textView,listItems);
list_item.setAdapter(adapter);
final Handler handler = new Handler();
handler.postDelayed( new Runnable() {
#Override
public void run() {
adapter.notifyDataSetChanged();
handler.postDelayed( this, 1000 );
}
}, 1000 );
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
listItems.add(editText.getText().toString());
adapter.notifyDataSetChanged();
sendMessage(view);
}
});
}
#Override
protected void onStop() {
// Unbind from the service
if (mBound) {
unbindService(mConnection);
mBound = false;
}
super.onStop();
}
public void sendMessage(View view) {
if (mBound) {
String message = editText.getText().toString();
String email = "kn#yopmail.com";
String name = "Kunal From Android";
String group ="1";
mService.sendMessage(name,email,group,message);
editText.setText("");
// Call a method from the SignalRService.
// However, if this call were something that might hang, then this request should
// occur in a separate thread to avoid slowing down the activity performance.
/*EditText editText = (EditText) findViewById(R.id.edit_message);
if (editText != null && editText.getText().length() > 0) {
}*/
}
}
public void setmMessageResive(JsonElement jsonElement)
{
listItems.add(10, String.valueOf(jsonElement));
}
/**
* Defines callbacks for service binding, passed to bindService()
*/
private final ServiceConnection mConnection = new ServiceConnection() {
#Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
// We've bound to SignalRService, cast the IBinder and get SignalRService instance
SignalRService.LocalBinder binder = (SignalRService.LocalBinder) iBinder;
mService = binder.getService();
mBound = true;
}
#Override
public void onServiceDisconnected(ComponentName arg0) {
mBound = false;
}
};
#Override
public void doSomething(String msg) {
listItems.add(msg);
}
}
Service code
package myapp.chatapp;
import android.app.Service;
import android.bluetooth.BluetoothClass;
import android.content.Intent;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.util.Log;
import android.widget.Toast;
import com.google.gson.JsonElement;
import java.util.ArrayList;
import java.util.concurrent.ExecutionException;
import java.util.logging.Logger;
import microsoft.aspnet.signalr.client.Action;
import microsoft.aspnet.signalr.client.Credentials;
import microsoft.aspnet.signalr.client.LogLevel;
import microsoft.aspnet.signalr.client.MessageReceivedHandler;
import microsoft.aspnet.signalr.client.Platform;
import microsoft.aspnet.signalr.client.SignalRFuture;
import microsoft.aspnet.signalr.client.http.Request;
import microsoft.aspnet.signalr.client.http.android.AndroidPlatformComponent;
import microsoft.aspnet.signalr.client.hubs.HubConnection;
import microsoft.aspnet.signalr.client.hubs.HubProxy;
import microsoft.aspnet.signalr.client.hubs.SubscriptionHandler1;
import microsoft.aspnet.signalr.client.hubs.SubscriptionHandler2;
import microsoft.aspnet.signalr.client.hubs.SubscriptionHandler4;
import microsoft.aspnet.signalr.client.transport.ClientTransport;
import microsoft.aspnet.signalr.client.transport.LongPollingTransport;
import microsoft.aspnet.signalr.client.transport.ServerSentEventsTransport;
/**
* Created by NULLPLEX7 on 11/28/2017.
*/
public class SignalRService extends Service {
private HubConnection mHubConnection;
private HubProxy mHubProxy;
private Handler mHandler; // to display Toast message
private final IBinder mBinder = new LocalBinder(); // Binder given to clients
ClientTransport transport;
registerListener registerListener;
private MainActivity setmMessageResive;
public Something list;
public SignalRService() {
}
#Override
public void onCreate() {
super.onCreate();
mHandler = new Handler(Looper.getMainLooper());
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
int result = super.onStartCommand(intent, flags, startId);
startSignalR();
return result;
}
#Override
public void onDestroy() {
mHubConnection.stop();
super.onDestroy();
}
#Override
public IBinder onBind(Intent intent) {
// Return the communication channel to the service.
startSignalR();
return mBinder;
}
/**
* Class used for the client Binder. Because we know this service always
* runs in the same process as its clients, we don't need to deal with IPC.
*/
public class LocalBinder extends Binder {
public SignalRService getService() {
// Return this instance of SignalRService so clients can call public methods
return SignalRService.this;
}
}
/**
* method for clients (activities)
*/
public void sendMessage(String name, String email, String group, String msg ) {
String SERVER_METHOD_SEND = "BroadCastMessage";
mHubProxy.invoke(SERVER_METHOD_SEND, name,email,group,msg);
}
private void startSignalR() {
Platform.loadPlatformComponent(new AndroidPlatformComponent());
Credentials credentials = new Credentials() {
#Override
public void prepareRequest(Request request) {
request.addHeader("User-Name", "BNK");
}
};
String serverUrl = "myurlhere";
mHubConnection = new HubConnection(serverUrl);
mHubConnection.setCredentials(credentials);
String SERVER_HUB_CHAT = "ChatHub";
mHubProxy = mHubConnection.createHubProxy(SERVER_HUB_CHAT);
ClientTransport clientTransport = new ServerSentEventsTransport(mHubConnection.getLogger());
SignalRFuture<Void> signalRFuture = mHubConnection.start(clientTransport);
mHubProxy.subscribe(this);
transport = new LongPollingTransport(mHubConnection.getLogger());
mHubConnection.start(transport);
/* ****new codes here**** */
/* ****seems useless but should be here!**** */
mHubProxy.subscribe(new Object() {
#SuppressWarnings("unused")
public void newMessage(final String message, final String messageId, final String chatId,
final String senderUserId, final String fileUrl, final String replyToMessageId) {
}
});
try {
signalRFuture.get();
}catch (InterruptedException | ExecutionException e) {
e.printStackTrace();
return;
}
mHubProxy.on("receiveGroupMessage",
new SubscriptionHandler4<String, String, String, String>() {
#Override
public void run(final String name,final String msg ,final String avtar,final String date ) {
final String finalMsg = name + " says " + msg;
/*final String finalMsg = msg;*/
// display Toast message
mHandler.post(new Runnable() {
#Override
public void run() {
list.doSomething(msg);
}
});
}
}
, String.class,String.class,String.class,String.class);
mHubConnection.received(new MessageReceivedHandler() {
#Override
public void onMessageReceived(final JsonElement json) {
Log.e("receiveGroupMessage ", json.toString());
mHandler.post(new Runnable() {
#Override
public void run() {
Toast.makeText(getApplicationContext(), ""+json, Toast.LENGTH_SHORT).show();
}
});
}
});
}
public interface Something
{
void doSomething(String msg);
}
}
i read on stack overflow that in onMessageReceived i get the server responses but i did not get any response here . I want when any one send message in group from web i want that message in my chat app someone suggest me that i need to create Event listener but i don't no how to create it . please tell me how do i get messages in my chat app.
mHubProxy.on("receiveGroupMessage",
new SubscriptionHandler4<String, String, String, String>() {
#Override
public void run(final String name,final String msg ,final String avtar,final String date ) {
final String finalMsg = name + " says " + msg;
/*final String finalMsg = msg;*/
// display Toast message
mHandler.post(new Runnable() {
#Override
public void run() {
list.doSomething(msg);
}
});
}
}
, String.class,String.class,String.class,String.class);
i thought that i got messages here but execution not go inside the Run.
Any Help is Welcome
I need to pass an arraylist which contains object with a string and arraylist. I am unable to pass the arraylist to other activity. In the Activity1 the list contains value that I have verified.
DepositBn:
package support;
import android.os.Parcel;
import android.os.Parcelable;
import com.google.gson.annotations.SerializedName;
import java.util.ArrayList;
public class DepositBn implements Parcelable {
private String limit;
#SerializedName("period")
private ArrayList<Rate> rateList;
protected DepositBn(Parcel in) {
limit = in.readString();
}
public String getLimit() {
return limit;
}
public void setLimit(String limit) {
this.limit = limit;
}
public ArrayList<Rate> getRateList() {
return rateList;
}
public void setRateList(ArrayList<Rate> rateList) {
this.rateList = rateList;
}
public class Rate {
private String rate;
public String getRate() {
return rate;
}
public void setRate(String rate) {
this.rate = rate;
}
}
#Override
public int describeContents() {
return 0;
}
#Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(limit);
}
public static final Creator<DepositBn> CREATOR = new Creator<DepositBn>() {
#Override
public DepositBn createFromParcel(Parcel in) {
return new DepositBn(in);
}
#Override
public DepositBn[] newArray(int size) {
return new DepositBn[size];
}
};
}
In the Activity1:
#Override
protected void onPostExecute(ArrayList<DepositBn> result) {
super.onPostExecute(result);
System.out.println("result = " + result);
for (DepositBn depositBn : result) {
System.out.println("----" + depositBn.getLimit());
}
try {
Intent intent = new Intent(DepositRates.this, GenericRateDisplay.class);
Resources res = DepositRates.this.getResources();
Bundle bundle = new Bundle();
bundle.putParcelableArrayList("depositBnArrayList",result);
bundle.putString("pageName", res.getString(R.string.domesticRates));
intent.putExtras(bundle);
startActivity(intent);
} catch (Exception ex) {
ex.printStackTrace();
}
}
In Activity2:
package in.co.sbm.sbmvirtual;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import java.util.ArrayList;
import support.DepositBn;
public class GenericRateDisplay extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_generic_rate_display);
Bundle b = this.getIntent().getExtras();
ArrayList<DepositBn> depositBnArrayList = b.getParcelableArrayList("depositBnArrayList");
//String pageName = b.getString("pageName");
ArrayList<String> rateList = new ArrayList();
for (DepositBn depositBn : depositBnArrayList) {
for(DepositBn.Rate rate : depositBn.getRateList()){
rateList.add(rate.toString());
}
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(GenericRateDisplay.this,
android.R.layout.simple_list_item_1, rateList);
ListView listView = (ListView) findViewById(R.id.genericListView);
listView.setAdapter(adapter);
}
}
I have fixed it. I have used inner class as well which I did not serialize hence I was unable to use putSerializable. I have serialized both the outer and inner class and used intent.putSerializable.
I have it set up so that when the user hits "clock in" it starts the intentservice, the intent service then updates the ui, the only problem is its not working.... here is my code for the main activity page :
package com.famousmods.payme;
import java.util.Timer;
import java.util.TimerTask;
import android.os.Bundle;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.Color;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.support.v4.app.NavUtils;
import android.graphics.PorterDuff;
public class PayTracker extends Activity {
private ResponseReceiver receiver;
private static double Reserve;
private static int Reserve1;
public static double money;
public static double counter;
private static int go;
private static int countdown;
public static int convert;
public static double HW;
public static double OTW;
public static double HPD;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pay_tracker);
getActionBar().setDisplayHomeAsUpEnabled(true);
// register reciver
IntentFilter filter = new IntentFilter(ResponseReceiver.ACTION_RESP);
filter.addCategory(Intent.CATEGORY_DEFAULT);
receiver = new ResponseReceiver();
registerReceiver(receiver, filter);
// Receive messages from options page
double pHW, pOTW, pHPD;
Intent intent = getIntent();
pHW = intent.getDoubleExtra(Options.MESSAGE_HW, 0);
pOTW = intent.getDoubleExtra(Options.MESSAGE_OTW, 0);
pHPD = intent.getDoubleExtra(Options.MESSAGE_HPD, 0);
if(pHW != 0){
HW = pHW;
OTW = pOTW;
HPD = pHPD;
}
// Color buttons
Button buttonc = (Button) findViewById(R.id.clockin);
buttonc.getBackground().setColorFilter(0xFF00FF00, PorterDuff.Mode.MULTIPLY);
Button buttond = (Button) findViewById(R.id.clockout);
buttond.getBackground().setColorFilter(0xFFFF0000, PorterDuff.Mode.MULTIPLY);
final Button b = (Button) findViewById(R.id.clockout);
b.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_pay_tracker, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
};
return super.onOptionsItemSelected(item);
}
public void sendMessage(View view) {
//Start IntentService
Intent msgIntent = new Intent(this, SimpleIntentService.class);
msgIntent.putExtra(SimpleIntentService.PARAM_IN_HW, HW);
msgIntent.putExtra(SimpleIntentService.PARAM_IN_OTW, OTW);
msgIntent.putExtra(SimpleIntentService.PARAM_IN_HPD, HPD);
startService(msgIntent);//}
}
public class ResponseReceiver extends BroadcastReceiver {
public static final String ACTION_RESP = "com.famousmods.payme.action.MESSAGE_PROCESSED";
#Override
public void onReceive(Context context, Intent intent) {
// Update UI, new "message" processed by SimpleIntentService
final TextView t1 = (TextView) findViewById(R.id.yourpay);
t1.setTextColor(Color.parseColor("#008000"));
final TextView t2 = (TextView) findViewById(R.id.payper);
String end = intent.getStringExtra(SimpleIntentService.PARAM_OUT_END);
String result = intent.getStringExtra(SimpleIntentService.PARAM_OUT_RESULT);
t2.setText(result);
t1.setText(end);
}
}
#Override
public void onDestroy() {
this.unregisterReceiver(receiver);
super.onDestroy();
}
}
And Here is my intent service page, its set up so that swhen the intent starts it starts a timer that every 20ms should send the new intent back to the activity page, here is the code:
package com.famousmods.payme;
import java.util.Timer;
import java.util.TimerTask;
import com.famousmods.payme.PayTracker.ResponseReceiver;
import android.app.IntentService;
import android.content.Intent;
public class SimpleIntentService extends IntentService {
public static final String PARAM_OUT_END = "end";
public static final String PARAM_OUT_RESULT = "result";
public static final String PARAM_IN_HW = "hourly wage";
public static final String PARAM_IN_OTW = "overtime";
public static final String PARAM_IN_HPD = "hours per day";
public static String end;
public static String result;
private static double Reserve;
private static int Reserve1;
public static double money;
public static double counter;
private static int go;
private static int countdown;
public static int convert;
public SimpleIntentService() {
super("SimpleIntentService");
}
#Override
protected void onHandleIntent(Intent intent) {
// recieve from paytracker
double HW = intent.getDoubleExtra(PARAM_IN_HW, 1);
double OTW = intent.getDoubleExtra(PARAM_IN_OTW, 1);
double HPD = intent.getDoubleExtra(PARAM_IN_HPD, 1);
// Calculate pay per second
final double PPS = (HW/3600);
final double DPPS = (PPS/50);
final double OTPPS = (OTW/3600);
final double DOTPPS = (OTPPS/50);
final double HPDPS = (HPD*3600);
final double DHPDPS = (HPDPS*50);
Timer t = new Timer();
t.schedule(new TimerTask() {
#Override
public void run() {
new Runnable() {
public void run() {
if(DHPDPS==0){
money = (DPPS+Reserve);
Reserve = (money);
end = String.format("%1f", money);
//t1.setText("$" + end);
}else if(counter > DHPDPS && DOTPPS != 0 && DHPDPS != 0){
money = (DOTPPS+Reserve);
Reserve = (money);
end = String.format("%1f", money);
//t1.setText("$" + end);
} else{
money = (DPPS+Reserve);
Reserve = (money);
end = String.format("%1f", money);
//t1.setText("$" + end);
}
counter++;
//if(counter == 3000)
// t.cancel();
// Display pay per second
if(counter <= DHPDPS || DHPDPS == 0){
result = String.format("%.8f", PPS);
}else{
// t2.setText("Your pay per second is: $"+result2);
result = String.format("%.8f", OTPPS);
}
// Broadcast intent
Intent broadcastIntent = new Intent();
broadcastIntent.setAction(ResponseReceiver.ACTION_RESP);
broadcastIntent.addCategory(Intent.CATEGORY_DEFAULT);
broadcastIntent.putExtra(PARAM_OUT_END, end);
broadcastIntent.putExtra(PARAM_OUT_RESULT, result);
sendBroadcast(broadcastIntent);
}
};
}
}, 20, 20);
}
}
Thanks everybody!
Using Stack Overflow question How to send an object from one Android Activity to another using Intents?, I have made a sample application as follows.
File Scrollview1.java
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class Scrollview1 extends Activity {
static int i;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button b = (Button)findViewById(R.id.Button01);
b.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent i = new Intent(Scrollview1.this, Result.class);
Name n = new Name();
n.setI(20);
n.setS1("Hello");
n.setS2("World");
i.putExtra("Name", n);
startActivity(i);
}
});
}
}
File Name.java
import android.os.Parcel;
import android.os.Parcelable;
public class Name implements Parcelable {
int i;
String s1;
String s2;
public Name() {
}
private Name(Parcel in) {
in.readInt();
in.readString();
}
public int getI() {
return i;
}
public void setI(int i) {
this.i = i;
}
public String getS1() {
return s1;
}
public void setS1(String s) {
this.s1 = s;
}
public String getS2() {
return s2;
}
public void setS2(String s) {
this.s2 = s;
}
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(i);
dest.writeString(s1);
dest.writeString(s2);
}
public static final Name.Creator<Name> CREATOR = new Name.Creator<Name>() {
public Name createFromParcel(Parcel in) {
return new Name(in);
}
public Name[] newArray(int size) {
return new Name[size];
}
};
}
File Result.java
import android.app.Activity;
import android.os.Bundle;
public class Result extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Name a = (Name)getIntent().getParcelableExtra("Name");
System.out.println("Int: " + a.getI());
System.out.println("String: " + a.getS1());
System.out.println("String: " + a.getS2());
}
}
But it is Result class I getting null. What is wrong?
In:
private Name(Parcel in){
in.readInt();
in.readString();
}
You are reading from the Parcel, but not actually assigning the information to a variable.
I think you should change it to this:
private Name(Parcel in){
i = in.readInt();
s1 = in.readString();
s2 = in.readString();
}
As per the documentation for the getParcelableExtra, it states that it returns null if the parcelable content is not found.
Try this in your Result.java file:
Name a = (Name)getIntent().getExtras().getParcelable("Name");
Instead of what you are doing now,
Name a = (Name)getIntent().getParcelableExtra("Name");