I am trying to start an intent service from one activity which gets data from server and try to get that data in another activity using broadcast receiver but the broadcast receiver class is not getting called, I have registered my service class in manifest also
Here is my code to start a service
Intent intent = new Intent(LoginActivity.this, MyWebRequestService.class);
startService(intent);
Class MyWebRequestService
//inside on handle intent
new AsynchCall().execute();
Intent broadcastIntent = new Intent();
broadcastIntent.setAction(MyWebRequestReceiver.PROCESS_RESPONSE);
broadcastIntent.addCategory(Intent.CATEGORY_DEFAULT);
//here I am getting the data in my arraylist
broadcastIntent.putStringArrayListExtra("namelist", servicelist);
sendBroadcast(broadcastIntent);
Activity where I want to receive my data
IntentFilter filter =IntentFilter(MyWebRequestReceiver.PROCESS_RESPONSE);
filter.addCategory(Intent.CATEGORY_DEFAULT);
receiver = new MyWebRequestReceiver();
registerReceiver(receiver, filter);
In the same activity I have written my broadcast receiver class
public class MyWebRequestReceiver extends BroadcastReceiver
{
public static final String PROCESS_RESPONS = "com.rentpro.PROCESS_RESPONSE";
#Override
public void onReceive(Context context, Intent intent)
{
listofnames = intent.getStringArrayListExtra("namelist");
}
}
Make sure that the receiver
registerReceiver(receiver, filter);
is called before sending the broadcast
sendBroadcast(broadcastIntent);
Related
So i was learning about BroadcastReceiver in android. BroadcastReceivers are based on observer design patterns (which makes them very interesting).
So what i am trying to achieve is to broadcast my message and inside same activity i want to receive the message (Just for testing purpose).
Here is the code snippet
Log.d("ABC", "sending");
Intent intent = new Intent("com.yourcompany.testIntent");
intent.putExtra("value", "test");
sendBroadcast(intent);
Log.d("ABC", "sent");
IntentFilter filter = new IntentFilter("com.yourcompany.testIntent");
BroadcastReceiver receiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
Log.d("ABC","INSIDE ");
String value = intent.getExtras().getString("value");
}
};
Log.d("ABC", "receiving");
registerReceiver(receiver, filter);
Log.d("ABC", "received");
Here is the debugged output
04-06 20:40:52.446
20149-20149/com.example.illuminati.broadcastreceiver D/ABC: sending
04-06 20:40:52.447
20149-20149/com.example.illuminati.broadcastreceiver D/ABC: sent 04-06
20:40:52.448 20149-20149/com.example.illuminati.broadcastreceiver
D/ABC: receiving 04-06 20:40:52.453
20149-20149/com.example.illuminati.broadcastreceiver D/ABC:received
Why it is not getting inside onReceive() method
What am i missing here
Any help?
You are sending your broadcast message before registering broadcast receiver. Try doing in the following way and it will work:
IntentFilter filter = new IntentFilter("com.yourcompany.testIntent");
BroadcastReceiver receiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
Log.d("ABC", "INSIDE ");
String value = intent.getExtras().getString("value");
}
};
registerReceiver(receiver, filter);
Intent intent = new Intent("com.yourcompany.testIntent");
intent.putExtra("value", "test");
sendBroadcast(intent);
Also you should consider using the LocalBroadcastManager if you want to broadcast a message inside your app (and not to every apps installed). See https://developer.android.com/reference/android/support/v4/content/LocalBroadcastManager.html
I am trying to use BroadcastReceiver inside my service but it is not working properly.
I am starting my service in an onCreate in my activity. Then in the services onCreate I am calling the following to register the Broadcast reciever:
IntentFilter filter = new IntentFilter();
registerReceiver(DataUpdateReceiver, filter);
Here's the broadcast receiver i am trying to register:
private BroadcastReceiver DataUpdateReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "Test", Toast.LENGTH_LONG).show();
}
};
Then else where in the Activity I am trying to call this so therefor the Toast message will be displayed.
Intent i = new Intent();
sendBroadcast(i);
But the Toast is not being displayed, I have also tried logging but nothing shows up. If anyone could help me out on this it would be appreciated, ty.
In my opinion, you have to specify action (or actions), which fire onReceive() method. Something like this might help you:
IntentFilter filter = new IntentFilter("some_action");
registerReceiver(DataUpdateReceiver, filter);
...
Intent i = new Intent("some_action");
sendBroadcast(i);
Declare on top of the class
public final static String MY_RECEIVER_START = "com.yourcompanyname.appname.MY_RECEIVER_START";
private Radio radio;
In the service constructor
//Initiate our receiver
radio = new Radio();
//Activate our recevier
context.registerReceiver(radio, new IntentFilter(MY_RECEIVER_START));
Also in the service, create the receiver class and the method which shows toast
/**
* Receiver Class
* This setup checks for the incoming intent action to be able to
* attach more messages to one receiver.
*/
private class Radio extends BroadcastReceiver{
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(MY_RECEIVER_START)){
//show toast
}
}
}
After from anywhere in the application send message to our radio
context.sendBroadcast(new Intent("com.yourcompanyname.appname.MY_RECEIVER_START"));
I send a Broadcast by doing:
Intent intent = new Intent("com.usmaan.myApp.DATA_RECEIVED");
intent.putExtra("matchId", newRowId);
LocalBroadcastManager.getInstance(mContext).sendBroadcast(intent);
This is the Service that wraps up the AsyncTask which runs Broadcasts the above:
<service
android:name=".services.DataService"
android:exported="false" />
In my Activity, I register a Receiver in onResume:
IntentFilter intentFilter = new IntentFilter("com.usmaan.myApp.DATA_RECEIVED");
registerReceiver(mDataReceiver, intentFilter);
The `BroadReceiver looks like this:
private class DataReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
final long matchId = intent.getLongExtra("matchId", 0);
Toast.makeText(LaunchActivity.this, "" + matchId, Toast.LENGTH_LONG);
}
}
The onReceive is never fired. What am I doing wrong?
Either use LocalBroadcastManager in both places (sendBroadcast() and registerReceiver()), or do not use LocalBroadcastManager at all. Right now, you have a mismatched pair.
i want when a new message received by onMessage() inside GCMIntentService.java , the onMessage() call a method called blinkLED() inside the MainActivity.java so the blinkLED() method can use the data received by onMessage() , how can i implement that ? a sample code will be helpful.
Use BroadcastReceiver. This tutorial shows you how to send a broadcast intent from a class, and have another class handles it.
Short example, in your GCMIntentService::onMessage(), you may have this:
Intent intent = new Intent();
intent.setAction("com.my.app.blinkled");
sendBroadcast(intent);
Then in your MainActivity, you implements a BroadcastReceiver :
private class MyBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
blinkLED();
}
}
and register for it in onResume() of MainActivity:
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("com.my.app.blinkled");
receiver = new MyBroadcastReceiver();
registerReceiver(receiver, intentFilter);
I'm stuck here at my previous struggle >> Prev. Struggle!
Raanan there helped! me a lot but then he I think went away as timing zone is different , now I'm stuck with my service code that I'm using to call my BroadcastReceiver() that is in the activity! and also I'm not getting with what parameter I should load the filter.addAction(action); in place of action??
Kinldy guide me!
CODE in the Server:
Toast.makeText(Server.this, hr +" , " +min, Toast.LENGTH_LONG).show();
Intent intent = new Intent(this, andRHOME.class);
//intent.putExtra("sendMessage","1");
sendBroadcast(intent);
and CODE IN THE ACITIVITY(Broadcast Receiver)
private BroadcastReceiver ReceivefrmSERVICE = new BroadcastReceiver(){
#Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "IN DA BroadCASTER",
Toast.LENGTH_LONG).show();
sendMessage("1");
}
};
IntentFilter filter = new IntentFilter();
You need to add these line to regiester your receiver for some action for example define a Global variable like this:
public static String NOTIFCATION_BROADCAST_ACTION = "com.your_packagename.UPDATE_NOTIFICATION_INTENT";
then register the action like this in your activity onCreate() Method.
IntentFilter filter = new IntentFilter();
filter.addAction(Global.NOTIFCATION_BROADCAST_ACTION);
registerReceiver(ReceivefrmSERVICE, filter);
Then send the broadcast from your service like this
Intent broadcast = new Intent();
broadcast.setAction(Global.NOTIFCATION_BROADCAST_ACTION);
sendBroadcast(broadcast);
Then in your broadcast Receiver filter this action like this
private BroadcastReceiver ReceivefrmSERVICE = new BroadcastReceiver(){
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Global.NOTIFCATION_BROADCAST_ACTION)) {
//Do your stuff here :)
}
}
};