Display Alertbox from service

Question

Is there any way to use alertbox in service rather then making another activity for it and then starting that activity from service?

score 0 · Answer 1 · answered Dec 04 '14 at 07:20

0

Create a custom Broadcast Receiver

 public class MyBroadcastReceiver extends BroadcastReceiver{

@Override
public void onReceive(Context context, Intent intent) {

// AlertDialogue will be here

}

}

Register it in the manifest file

 <receiver android:name="MyBroadcastReceiver">
        <intent-filter>
            <action android:name="com.sample.A_CUSTOM_INTENT">
            </action>
        </intent-filter>
  </receiver>

Trigger the BroadcastReceiver from service

   Intent intent = new Intent("MyCustomIntent");    
   EditText et = (EditText)findViewById(R.id.extraIntent);
   // add data to the Intent
   intent.putExtra("message", (CharSequence)et.getText().toString());
   intent.setAction("com.sample.A_CUSTOM_INTENT");
   sendBroadcast(intent);

answered Dec 04 '14 at 07:20

Don Chakkappan

7,397
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broadcast does not allow alertdialog i guess. – Zyshan Noor Dec 04 '14 at 10:27
onReceive() is running on main (UI) thread.Then whats the problem ?Have you tried it? . – Don Chakkappan Dec 04 '14 at 10:32
yp I have tried it .It just crashes the application.And my logcat does not show logs from when app is running on cell phone – Zyshan Noor Dec 04 '14 at 10:35
Try to trace the exception – Don Chakkappan Dec 04 '14 at 10:36

score 0 · Accepted Answer · edited May 23 '17 at 11:50

0

A Service cannot show a Dialog , only you can show short lived Toast from there.

But If your Requirement is of showing dialog I will not disappoint you .You have got following options:

If you have a MainActivity use a LocalBroadcastReceiver to send a broadcast to your activity and let your MainActivity show a Dialog. (This will be possible only when your activity is visible)
The other option is Define a Dialog theme activity (take a look here) in your manifest and start that activity from service.
Another option could be , Define a Activitiy in Manifest whose sole purpose would be display a Dialog and start that activity from service

Edit

I have a suggestion , If you wish to present information to your users , you should use Notification . The main reason that you cannot show a dialog from service is that Google wants information to be decently presented to its users , instead of surprising them when suppose they are in middle of a call , or typing message etc.

if the user is interested, then he will touch the notification and you start your own activity, possibly resuming your activity, creating a new one, and then using a dialog requesting action to be performed, or whatever you want to do.

Alternative Solution

However If you persist I have another solution if you like hacking, (but I don't like hacks in good application).

edited May 23 '17 at 11:50

Community

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answered Dec 04 '14 at 08:52

Shubhang Malviya

1,525
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Is there any other way to show alert box from service instead of making activities. – Zyshan Noor Dec 04 '14 at 10:33
I have added a suggestion note and possible answer to your question :) enjoy – Shubhang Malviya Dec 04 '14 at 10:58
well my service checks if user is launching a certain application then an alert dialog should appear asking for password. For this i need to declare alert box in service or from broadcast rather then making another activity. – Zyshan Noor Dec 04 '14 at 11:48
well in that case you should definitely go with my above alternative solution , Which makes use of window manager , try to google about window manager example , and you will be satisfied :) .After implementing If you found it useful don't forget to accept answer ;) – Shubhang Malviya Dec 04 '14 at 13:01
its working to some extent.now m trying to make alertbox activity from it. – Zyshan Noor Dec 04 '14 at 18:53

Display Alertbox from service

2 Answers2