Develop Reference

How to run function with broadcastreceiver in Android?

I have a function in activity I want to run this function with broadcastreceiver. How can I make this?
public class Myclass extends BroadcastReceiver{
#Override
public void onReceive(Context context, Intent intent) {
}
}
This is my broadcastreceiver class I want to run function which is in my activty please tell me with some code how to do this.

If the method you want to execute needs your activity instance, then you can register the broadcast receiver inside your activity, so it can access your activity's state and functions.
In your Activity "onCreate" method:
final IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("Your Intent action here");
intentFilter.addAction("Another action you want to receive");
final BroadcastReceiver myReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
theFunctionYouWantToExecute();
}
};
registerReceiver(myReceiver, intentFilter);
And in your "onDestroy" method:
unregisterReceiver(myReceiver);
Keep in mind that in this case your broadcast receiver has full access to your activity state, BUT it's lifecycle will be conditioned to the activity lifecycle.
Another option you have is to declare your activity method as static, so you can execute it in any part of your application.

You can declare an interface in Myclass and implement it in your MainActivity
public class Myclass extends BroadcastReceiver{
public interface MyClassInterface {
void onMyClassReceive();
}
private MyClassInterface mListener;
public Myclass(MyClassInterface mMyClassInterface) {
mListener = mMyClassInterface;
}
#Override
public void onReceive(Context context, Intent intent) {
mListener.onMyClassReceive();
}
}
Then in your MainActivity:
public class MainActivity implements Myclass.MyClassInterface {
private mMyClass Myclass = new Myclass(this);
#Override
public void onMyClassReceive() {
// Do stuff when Myclass.onMyClassReceive() is called,
// which will be called when Myclass.onReceive() is called.
}
}

You are almost there. Just create your method in the Activity and using Activity's instance call that method. Remember that your method inside your Activity should be not private.
public class Myclass extends BroadcastReceiver{
#Override
public void onReceive(Context context, Intent intent) {
new YourActivity().yourFunction();
}
}
If you want to create a static method inside your Activity then
public class Myclass extends BroadcastReceiver{
#Override
public void onReceive(Context context, Intent intent) {
YourActivity.yourFunction();
}
}
To trigger the Broadcast, you have to pass an Intent. If you want to trigger it from any Activity then
Intent intent = new Intent();
this.sendBroadcast(intent);
If you want to trigger the Broadcast from a Fragment then
Intent intent = new Intent();
getActivity().sendBroadcast(intent);

I know it's quote naif, but you could call a static method in your activity.
In your activity you declare the method like this:
public static <return_type> yourMethod(<input_objs>){
....
Your code
....
}
In the receiver you can use this function just calling:
YourActivityClass.yourMethod(<input_objs>);
I hope it helped.

How can I check that whether a broadcast receiver is working or not?

Here is bootstartup.java file. I have checked that TestService is working properly. But I just want to know how can I check that data is broadcasted?
Code
public class bootstartup extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
// start the service
Intent service=new Intent(context,TestService.class);
context.startService(service);
Log.e("com.example.myglobalbroadcastreceiver","Broadcast Received:"+intent.getAction());
// start the app
Intent app= new Intent(context,Abhijeet.class);
context.startService(app);
}
}

finish my current background activity when call ringing android

I have application that use audio device of the phone, I want my activity to be finish when any call come to my device
This is the code
public class PhoneStateReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context mContext, Intent intent) {
if (intent.getAction().equals("android.intent.action.PHONE_STATE")) {
if (intent.getStringExtra(TelephonyManager.EXTRA_STATE).equals(
TelephonyManager.EXTRA_STATE_RINGING)) {
// Send local broadcast to set pin code in the dialog
Intent broadcast = new Intent();
broadcast.setAction(ThurayaConstants.INCOMING_CALL);
mContext.sendBroadcast(broadcast);
}
}
}
}
I have added this class to listen to global receiver in the manifest file to detect when any call come to my device.
and in my fragment I register the following receiver
private BroadcastReceiver mIncomingCallReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
getActivity().finish();
}
};
The problem that my activity is not closed , can any one help here ???

Android broadcast receiver not working with intent receiver

Hi I developed one small android application in which I am using one activity one intent service and one broadcast receiver.
So my code looks like :
public class Main_Activity extends Activity {
private ResultReceiver resultReciver;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_);
Log.i("***************************88", "inside activity on create");
IntentFilter filter = new IntentFilter("com.nilkash.broadcast.receiver");
resultReciver = new ResultReceiver();
registerReceiver(resultReciver, filter);
//LocalBroadcastManager.getInstance(this).registerReceiver(resultReciver, filter);
Intent intent = new Intent(this, ExampleService.class);
startService(intent);
}
public class ResultReceiver extends BroadcastReceiver{
public ResultReceiver()
{
}
#Override
public void onReceive(Context arg0, Intent arg1) {
// TODO Auto-generated method stub
Log.i("**********************", "inside broadcast receiver: ");
}
}
}
And intent service
public class ExampleService extends IntentService{
public ExampleService(String value)
{
super(value);
}
public ExampleService()
{
super("");
}
#Override
protected void onHandleIntent(Intent intent) {
// TODO Auto-generated method stub
Log.i("********************************", "inside intetn reciver: ");
Intent broadcastIntent = new Intent();
broadcastIntent.setAction("com.nilkash.broadcast.receiver");
//broadcastIntent.putExtra("value", "nilkash");
sendBroadcast(intent);
//LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}
}
In manifest file I define service.
So my problem is that I start service from activity and its working fine. From service on intent receive I sent one broadcast receiver but it not listening inside my broadcast receiver.
Am i doing some thing wrong? Need Help. Thank you.

There is an error: sendBroadcast(intent);. Should be another intent object (broadcastIntent).

BroadCastReceiver calls Service

Hi I am using this code to call a Service from BroadCastReceiver but its not working.
here is the code:
public class AlarmReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
System.out.println("luli");
Intent myIntent=new Intent(context,AlarmReceiver.class);
// myIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startService(myIntent);
}
}
then on my Service I have this code:
public class AlarmService extends Service {
#Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
System.out.println("HEY u bastard service print at least something");
return null;
}
}
I have also declared in Manifest the service
What is wrong here that is not responding the Service??

You override onBind(). Thats only called when someone creates a persistent connection to the service via binding (Context.bindService()). You should rather override onStartCommand().