How to start Direct Call in Samsung?

Question

Samsung's smartphones has one nice feature called direct call - i.e. while messaging one can just lift telephone to ears and it starts calling.

This kind of function implemented in SGS-3, SGS-4 Note-1 and Note-2.

I'm writing messaging application and just thinking how to use this feature.

So the question is: how to start direct call from Android app? I understand that it's non-standard function but probably there's some kind of API or Intent which allows to use direct call on Samsungs?

Any clues/hints/ideas?

Answer 1

I guess it is function using calling plus light sensor, which has bunch of examples around.

Updated

Sorry, it would be Proximity Sensor. just try putting on your hand when messaging, whether it calls or not. Here is the link for it. http://developer.android.com/guide/topics/sensors/sensors_position.html#sensors-pos-prox

Answer 2

I don't think that there is some special API for this. I believe it's just a functionality of messanging app. It combines two features:

A. Calling a phone

It does something like that:

Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:1234567890"));
startActivity(callIntent);

B. Motion sensors usage

You can take a look how to use it here. It detect that phone goes up for some period of time (may be it also measure rotation to see that it's correct gesture).

Answer 3

To use the DIRECT CALL FEATURE on the SAMSUNG GALAXY NOTE II simply do this:

During a TEXT MESSAGE that you are having with another person just simply put your GALAXY NOTE II up to your ear and then it will automatically dial & call the person that you are currently having a TEXT MESSAGE CONVERSATION WITH