I'm having serious problems when showing a ProgressDialog while a service is getting ready... The service takes time to get ready as it's a bit heavy, so I want to show the ProgressDialog meanwhile it's started.
The thing is that it shows the ProgressDialog right before the next activity starts... I really don't find what it is...
package org.pfc;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
public class ConnectActivity extends Activity {
// FIELDS------------------------------------------------------------------
protected LocalService mSmeppService;
private ProgressDialog progressDialog;
private Thread tt;
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
// Gets the object to interact with the service
mSmeppService = ((LocalService.LocalBinder) service).getService();
}
public void onServiceDisconnected(ComponentName className) {
// This is called when the connection with the service has been
// unexpectedly disconnected -- that is, its process crashed.
// Because it is running in our same process, we should never
// see this happen.
mSmeppService = null;
}
};
// For getting confirmation from the service
private BroadcastReceiver serviceReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG, "receiver onReceive...");
if (progressDialog.isShowing())
progressDialog.dismiss();
// Change activity
Intent groupsActivityIntent = new Intent(ConnectActivity.this,
GroupsActivity.class);
startActivity(groupsActivityIntent);
}
};
// METHODS ----------------------------------------------------------------
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (LocalService.isRunning) {
// TODO start ListActivity
Log.i(TAG, "Starting GroupsScreen");
Intent i = new Intent(ConnectActivity.this, GroupsActivity.class);
startActivity(i);
} else {
setContentView(R.layout.connect_screen);
// Add listener to the button
Button buttonConnect = (Button) findViewById(R.id.button_connect);
buttonConnect.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
processThread();
}
});
}
}
// PRIVATE METHODS --------------------------------------------------------
private void processThread() {
progressDialog = ProgressDialog.show(ConnectActivity.this, "",
"Loading. Please wait...", true, false);
tt = new Thread() {
public void run() {
// Register broadcastReceiver to know when the service finished
// its creation
ConnectActivity.this.registerReceiver(serviceReceiver,
new IntentFilter(Intent.ACTION_VIEW));
// Starts the service
startService(new Intent(ConnectActivity.this,
LocalService.class));
Log.i(TAG, "Receiver registered...");
}
};
tt.start();
}
}
The service executes by the end of the onStart method this:
// Send broadcast so activities take it
Intent i = new Intent(Intent.ACTION_VIEW);
sendOrderedBroadcast(i, null);
So the onReceive method runs and we go to the next activity
The problem is that you are not running ProgressDialog in a UI thread.
Add a handler that will handle messages in your UI thread.
private static final int UPDATE_STARTED = 0;
private static final int UPDATE_FINISHED = 1;
private Handler handler = new Handler(){
#Override public void handleMessage(Message msg) {
switch (msg.what) {
case UPDATE_STARTED:
progressDialog = ProgressDialog.show(ConnectActivity.this, "",
"Loading. Please wait...", true, false);
break;
case UPDATE_FINISHED:
if(progressDialog.isShowing()){
progressDialog.dismiss();
}
break;
}
}
};
private void processThread() {
Message m = new Message();
m.what = UPDATE_STARTED;
handler.sendMessage(m);
//Your working code
m = new Message();
m.what = UPDATE_FINISHED;
handler.sendMessage(m);
}
good luck!
Related
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'm supposed to add a timer to my service class that prints a message to LogCat every 10 seconds. Nothing in the service class is printing once I call the startService method and I have no idea why.. Any ideas?
package com.murach.reminder;
import android.content.Intent;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class ReminderActivity extends Activity implements OnClickListener {
private Button startServiceButton;
private Button stopServiceButton;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_reminder);
startServiceButton = (Button) findViewById(R.id.startServiceButton);
stopServiceButton = (Button) findViewById(R.id.stopServiceButton);
startServiceButton.setOnClickListener(this);
stopServiceButton.setOnClickListener(this);
}
#Override
public void onClick(View v) {
Intent serviceIntent = new Intent(this, ReminderService.class);
switch (v.getId()) {
case R.id.startServiceButton:
// put code to start service and display toast here
startService(serviceIntent);
Toast.makeText(this, "Service started", Toast.LENGTH_SHORT).show();
break;
case R.id.stopServiceButton:
// put code to stop service and display toast here
stopService(serviceIntent);
Toast.makeText(this, "Service stopped", Toast.LENGTH_SHORT).show();
break;
}
}
}
package com.murach.reminder;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;
import java.util.Timer;
import java.util.TimerTask;
public class ReminderService extends Service
{
private Timer timer;
public void onCreate()
{
Log.d("Reminder", "Service created");
startTimer();
}
#Override
public IBinder onBind(Intent intent)
{
Log.d("Reminder", "No binding for this activity");
return null;
}
public void onDestroy()
{
Log.d("Reminder", "Service destroyed");
stopTimer();
}
private void startTimer() {
TimerTask task = new TimerTask() {
public void run() {
Log.d("Reminder", "Timer task executed");
}
};
timer = new Timer(true);
int delay = 1000 * 10;
int interval = 1000 * 10;
timer.schedule(task, delay, interval);
}
private void stopTimer()
{
if (timer != null)
{
timer.cancel();
}
}
}
And here is how I register the service in the Manifest (in a service element, it wouldn't let me type it out completely)
android:name="com.murach.reminder.ReminderService"
The package names do not match. There is a spelling mistake in the word murach in your Manifest declaration.
I want to implement a simple messenger application for Android devices,I'm working with a web service which contains all the required methods for sending and receiving(by pressing the send button a record will be inserted in the DB and by calling the receive method all the rows related to this receiver(user) are retrieved).
I've written a service in a separate class and in onStart() I check the receive method of my .Net web service,I start the service in onCreate() of my activity ,so the service is in the background and receives the incoming messages perfectly,I can show the new message by using a toast directly in my service code,but I know that for accessing the views which are in my activity I should use pendingintent and maybe a BroadcastReceiver,so I can add the new messages to the main screen of my activity(for example a textview).
Now I want to find a way to access the textview of my activity and set the text of it through my service or anything else...
please help me on this issue,
Here is my activity:
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MyOwnActivity extends Activity
{
Button btnSend;
Button btnExtra;
EditText txtMessageBody;
TextView lblMessages;
BerryService BS = new BerryService();
public void SetMessageHistory(String value)
{
txtMessageBody.setText(value);
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btnSend = (Button) findViewById(R.id.btnSend);
btnExtra = (Button) findViewById(R.id.btnExtraIntent);
txtMessageBody = (EditText) findViewById(R.id.txtMessageBody);
lblMessages = (TextView) findViewById(R.id.lblMessages);
/////////
//////////
startService(new Intent(this, IncomingMessageService.class));
btnSend.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// call webservice method to send
BS.SetSoapAction("http://tempuri.org/Send");
BS.SetMethodName("Send");
String a = BS.SendMessage(txtMessageBody.getText().toString());
lblMessages.setText(lblMessages.getText().toString() + "\n"
+ txtMessageBody.getText().toString());
txtMessageBody.setText("");
}
});
}
}
Here is my service:
import java.util.Timer;
import java.util.TimerTask;
import android.app.ActivityManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.os.SystemClock;
import android.widget.Toast;
public class IncomingMessageService extends Service
{
private static final int NOTIFY_ME_ID = 12;
BerryService BS = new BerryService();
String text = "";
#Override
public IBinder onBind(Intent intent) {
throw new UnsupportedOperationException("Bind Failed");
}
#Override
public void onCreate() {
Toast.makeText(this, "onCreate", 5000).show();
}
#Override
public void onStart(Intent intent, int startId) {
// ////////////////////////
Toast.makeText(this, "onStart ", 1000).show();
// Timer Tick
final Handler handler = new Handler();
Timer _t = new Timer();
TimerTask tt = new TimerTask() {
#Override
public void run() {
handler.post(new Runnable() {
public void run() {
Toast.makeText(getApplicationContext(), "tick ", 1000)
.show();
// here the receive method should be called
BS.SetSoapAction("http://tempuri.org/RecieveMessage");
BS.SetMethodName("RecieveMessage");
String receivedMsg = BS.ReceiveMessage("sh");
//Instead of toast I want to access the textview in my activity!!!!!
Toast.makeText(getApplicationContext(), receivedMsg, 5000).show();
}
});
}
};
_t.scheduleAtFixedRate(tt, 0, 1000);
}
// /
#Override
public void onDestroy() {
Toast.makeText(this, "onDestroy", 5000).show();
}
}
You need to understand the concept of Broadcast, in your case it is the correct solution.
Start Broadcast in its activity
public static final String ACTION = "com.yourapp.ACTION.TEXT_RECEIVED";
private BroadcastReceiver mReceiver;
#Override
public void onCreate(Bundle savedInstanceState) {
////////
mReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
String msg = intent.getStringExtra("msg");
yourTextView.setText(msg);
}
};
IntentFilter filter = new IntentFilter(ACTION);
filter.addCategory(Intent.CATEGORY_DEFAULT);
registerReceiver(mReceiver, filter);
////////
}
protected void onDestroy() {
// remember to unregister the receiver
super.onDestroy();
if (mReceiver != null) {
unregisterReceiver(mReceiver);
}
}
When you need to send the message of service you should use:
Intent i = new Intent();
i.setAction(MyOwnActivity.ACTION);
i.addCategory(Intent.CATEGORY_DEFAULT);
i.putExtra("msg", "the message received by webservice");
i.putExtras(b);
sendBroadcast(i);
Have a look here: http://developer.android.com/reference/android/content/BroadcastReceiver.html
Using a broadcast manager is great but I personally prefer to use square's Otto because it is just so easy to perform communication between components in an android application.
http://square.github.io/otto/
If you do choose to use otto, you are going to have to override the Bus's post method to be able to talk post messages to a bus on the foreground. Here is the code for that:
public class MainThreadBus extends Bus {
private final Handler handler = new Handler(Looper.getMainLooper());
#Override public void post(final Object event) {
if (Looper.myLooper() == Looper.getMainLooper()) {
super.post(event);
} else {
handler.post(new Runnable() {
#Override
public void run() {
post(event);
}
});
}
}
}
how is possible that I am getting android.os.NetworkOnMainThreadException when I try to create a socket calling bulb.connectToHW() if I do it from the doInBackground() method of my asycTask?
This is the code of the AsyncTask:
package com.example.bulbcontrol2;
import java.net.InetAddress;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.AsyncTask;
import android.widget.TextView;
public class AsyncConnection extends AsyncTask<Object, String, String> {
private TextView textV;
private Context context;
private String message;
private Device bulb;
public AsyncConnection(TextView textViewToUpdate,Context context)
{
this.textV = textViewToUpdate;
this.context = context;
}
#Override
protected String doInBackground(Object... params) {
bulb = new Device((InetAddress) params[0],(Integer) params[1]);
BroadcastReceiver receiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals("open_connection"))
{
System.out.println(bulb.connectToHW());
message = "Connected";
System.out.println(bulb.dataTransferHW("hello"));
textV.setText(message);
}
if (intent.getAction().equals("close_connection"))
{
message = "Disconnected";
System.out.println(bulb.dataTransferHW("bye"));
bulb.closeConexHW();
}
}
};
IntentFilter filter = new IntentFilter("open_connection");
context.registerReceiver(receiver, filter);
filter.addAction("close_connection");
context.registerReceiver(receiver, filter);
return message;
}
/* protected void onProgressUpdate(String... progress) {
//textV.setText(progress[0]);
}*/
}
And this is the code of the UIThread :
package com.example.bulbcontrol2;
import java.net.InetAddress;
import java.net.UnknownHostException;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.CompoundButton;
import android.widget.TextView;
import android.widget.ToggleButton;
public class MainActivity extends Activity
{
Intent broadcastIntent = new Intent();
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bulbActions();
}
public void bulbActions()
{
final ToggleButton buttonBulb = (ToggleButton) findViewById(R.id.ToggleBulb);
final ToggleButton buttonLDR = (ToggleButton) findViewById(R.id.ToggleLDRValues);
final TextView txtLDR = (TextView) findViewById(R.id.TxtLDRValues);
byte [] hostBytes = new byte[] {(byte)192,(byte)168,(byte)0,(byte)12};
int port = 5006;
InetAddress host = null;
try
{
host = InetAddress.getByAddress(hostBytes);
}
catch (UnknownHostException e)
{
System.out.println("\nError with server address");
e.printStackTrace();
}
new AsyncConnection((TextView)findViewById(R.id.TxtLDRValues),this.getApplicationContext()).execute(host,port);
buttonBulb.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View arg0)
{
if (buttonBulb.isChecked())
{
System.out.println("Pulsado");
broadcastIntent.setAction("open_connection");
MainActivity.this.sendBroadcast(broadcastIntent);
}
else
{
System.out.println("NO Pulsado");
broadcastIntent.setAction("close_connection");
MainActivity.this.sendBroadcast(broadcastIntent);
}
}
});
}
}
Your doInBackground is just defining a BroadcastReceiver and registering it. All the code inside onReceive will run in the main thread when the system calls it following your onClick.
I don't know why you need a BroadcastReceiver if you're just triggering it from a button.
Instead you could do the network stuff directly on your doInBackground and then actually start the AsyncTask inside onClick.
On a case you do need a BroadcastReceiver what you wanna do is start a service from onReceive and do all the network job in the service.
After API11 you can also use goAsync() in the receiver as described here and start a Thread.
I have an activity thats waiting for the user press on an image. if the user dont press anything in 3 second i want the activity to close (finish()).
thats my code:
private final int delay = 3000;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.after_hangup);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
final ImageView pressToLaunchbrowser = (ImageView) findViewById(R.id.after_hang_up_image);
pressToLaunchbrowser.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
//getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD); // if we want to open the device.
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(url));
startActivity(intent);
Thread.interrupted();
}
});
new Thread() {
public void run() {
try {
Thread.sleep(delay);
finish();
}
catch (InterruptedException e) {
e.printStackTrace();
}
}
}.start();
}}
My question is how can i wake the Thread if the press was made? i tried Thread.interrupted(); but its not working. the thread still waits 3 seconds if i press or not. Thanks!
Threads are not recommended to use in Android..use Handler to manage time-dependant operations..for example, instead of new Thread().., try
Handler handler = new Handler();
handler.postDelayed('runnable-that-will-finish-activity', 3000);
and in onclicklistener:
handler.remove('runnable-that-will-finish-activity') ;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.widget.ImageView;
public class NewActivity extends Activity {
private final int delay = 3000;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.after_hangup);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
final ImageView pressToLaunchbrowser = (ImageView) findViewById(R.id.after_hang_up_image);
final Handler handler = new Handler();
handler.postDelayed(finishRunnable, delay);
pressToLaunchbrowser.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
// // if we want to open the device.
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(url));
startActivity(intent);
handler.removeCallbacks(finishRunnable);
}
});
}
private Runnable finishRunnable = new Runnable() {
#Override
public void run() {
finish();
}
};
}