Outgoing CALL_STATE - android

How can I access the current status of an outgoing call (dialing, active, etc.)?
In my application I want it that all the LEDs on the device are inactive for the duration of the "call-active status", but during the "dialing status" and after the call is ended the LEDs should be on. I need to read out (or capture) the status - but how?
I have already read that one can not question the CALL_STATE_OFFHOOK.
Is it possible to infer the status via the GUI (phone screens)?
Or is there another possibility?
I know that this is not a new topic but I´m only looking for the "dialing/active/disconnected" statuses - the rest (holding, alerting, incoming,...) don´t matter.
If the gui changes there must be a possibility to read that "changing behaviour out" and use it .... or am I too naive?

You can use AudioManager to get the current audio state, effectively seeing if you are currently in a call or not.
mAudioManager.getMode() == AudioManager.MODE_IN_CALL
if that returns true, then your user is in a call, otherwise they aren't. I know this isn't a full solution to your problem, but it might help if other things are not possible.

Related

Alternative to READ_PHONE_STATE permission for getting notified of call

I'm currently using the READ_PHONE_STATE permission in Android to pause my media player when there's a call, and to resume playback when the call is over. The permission seems to scare a lot of people, so I was wondering if there was an alternative to catching the starting and stopping of a phone call without it. Any help is appreciated. Thanks!
If you want to adjust your audio output in response to something else wanting to perform audio output (e.g., an incoming phone call), look into Android's audio focus support.
READ_PHONE_STATE, as noted, is a bit of a scary permission. Moreover, it only deals with phone calls, and not other things that might need the same capability (e.g., VOIP calls, as AFAIK those don't tie into READ_PHONE_STATE-enabled stuff).
Unfortunately, audio focus is not a substitute for READ_PHONE_STATE. My app has to use both. The standard phone app on my Galaxy S3 I9300/ Android 4.3 doesn't seem to request the audio focus at all. The TelephonyManager class gives you a way to detect the end of the phone call (by sending the CALL_STATE_IDLE state update). The AudioManager doesn't seem to do anything similar, so even if audio focus could be used, it would not be as useful. And, from what I see in the documentation, there doesn't seem to be a narrower permission than READ_PHONE_STATE that would allow the app to read the phone state but not the call information. If I'm wrong about any of this, please correct me.
Unfortunately, audio focus is not a substitute for READ_PHONE_STATE. My app has to use both. The standard phone app on my Galaxy S3 I9300/ Android 4.3 doesn't seem to request the audio focus at all. The TelephonyManager class gives you a way to detect the end of the phone call (by sending the CALL_STATE_IDLE state update). The AudioManager doesn't seem to do anything similar, so even if audio focus could be used, it would not be as useful. And, from what I see in the documentation, there doesn't seem to be a narrower permission than READ_PHONE_STATE that would allow the app to read the phone state but not the call information. If I'm wrong about any of this, please correct me.

What is the status of an outgoing call [duplicate]

Once ACTION_NEW_OUTGOING_CALL has been broadcasted, I need to capture the following event of the other party answer. Could you advice on how to achieve that please? I know it is possible as the Android dialer app changes the green Android icon to the person's photo exactly when they pick up.
UPDATED: I've had a look at the source of the app on Android handling the outgoing calls. I noticed the following method in ContactsUtils:
/**
* Kick off an intent to initiate a call.
*/
public static void initiateCall(Context context, CharSequence
phoneNumber) {
Intent intent = new Intent(Intent.ACTION_CALL_PRIVILEGED,
Uri.fromParts("tel", phoneNumber.toString(), null));
context.startActivity(intent); }
I guess my answer is in the activity listening for Intent.ACTION_CALL_PRIVILEGED. So to rephrase my question: Does anyone know which activity handles Intent.ACTION_CALL_PRIVILEGED?
I don't think there's such API and also there's no API for sending DTMFs due to the same reason that you can't tell when the call is being connected.
It does not necessarily needs to be possible to capture this as an outside app. The green android icon is a part of the application that controls the call, so it does not need a broadcast to change the icon.
As far as android's telephony manager is concerned u cannot detect programmatically whether the call has been answered or not. This is to say that u do not have the option to know when the user picked the phone at other end.
Android has got 3 states of telephony manager and none of them are capable of detecting whether the call was actually answerd or not(IN CASE OF OUTGOING CALLS)
The only way you may be able to do this is by parsing the Logcat logs, no PhoneStateListener event is available for that.
Some are asking for it here: https://code.google.com/p/android/issues/detail?id=14266
Anyway, in versions above Android 4.2 as Logcat is "sandboxed" it may be impossible...

How can I detect when a call is answered? [duplicate]

Once ACTION_NEW_OUTGOING_CALL has been broadcasted, I need to capture the following event of the other party answer. Could you advice on how to achieve that please? I know it is possible as the Android dialer app changes the green Android icon to the person's photo exactly when they pick up.
UPDATED: I've had a look at the source of the app on Android handling the outgoing calls. I noticed the following method in ContactsUtils:
/**
* Kick off an intent to initiate a call.
*/
public static void initiateCall(Context context, CharSequence
phoneNumber) {
Intent intent = new Intent(Intent.ACTION_CALL_PRIVILEGED,
Uri.fromParts("tel", phoneNumber.toString(), null));
context.startActivity(intent); }
I guess my answer is in the activity listening for Intent.ACTION_CALL_PRIVILEGED. So to rephrase my question: Does anyone know which activity handles Intent.ACTION_CALL_PRIVILEGED?
I don't think there's such API and also there's no API for sending DTMFs due to the same reason that you can't tell when the call is being connected.
It does not necessarily needs to be possible to capture this as an outside app. The green android icon is a part of the application that controls the call, so it does not need a broadcast to change the icon.
As far as android's telephony manager is concerned u cannot detect programmatically whether the call has been answered or not. This is to say that u do not have the option to know when the user picked the phone at other end.
Android has got 3 states of telephony manager and none of them are capable of detecting whether the call was actually answerd or not(IN CASE OF OUTGOING CALLS)
The only way you may be able to do this is by parsing the Logcat logs, no PhoneStateListener event is available for that.
Some are asking for it here: https://code.google.com/p/android/issues/detail?id=14266
Anyway, in versions above Android 4.2 as Logcat is "sandboxed" it may be impossible...

android Outbound caller id - on/off

I wan to hide/show my caller id from my activity programmatically. I tried to find it in the android documentation but without the luck. Maybe you have any ideas?
I posted a question asking this on the Android Google group and got absolutely no answers at all. I've also seen a couple of other question on SO which also had no answers (or none that work).
I came to the conclusion that it simply isn't possible. My reasoning is this...
If I go to Settings -> Call -> Additional settings, I see an AlertDialog which has a HeaderTitle of 'Call settings' and I see a circular progress indicator and a message saying 'Reading settings...'.
It occurs to me that my phone is, at that point, accessing my phone/network provider. The resulting 'chooser' dialog gives me options for 'Network default', 'Hide number' and 'Show number' and when I make a selection (or even if I just 'Cancel' the dialog), I get another AlertDialog with circular progress indicator with the message 'Updating settings...'.
In short, it seems the Caller ID setting is not entirely 'local' to the phone settings and relies on interaction with the provider and, for whatever reason, as a result of this the Android APIs don't allow this to be manipulated programatically.
I'm not sure if this is something on the 'To Do' list for future versions of Android or if there are legal/security implications in allowing it to be done or some other reason. Whatever the case may be, I haven't found anybody so far who is able to explain why there isn't a method for TelephonyManager (for example) to simply switch this.
EDIT: No luck on getting the Additional Settings AlertDialog with the standard APIs either.
The reason I say that is that it is possible to pull up various parts of the device's 'Settings', e.g., in one of my apps I use android.provider.Settings.ACTION_WIRELESS_SETTINGS in the constructor of an Intent passed to startActivity(). This brings up the Settings page for enabling/disabling wi-fi, mobile internet and bluetooth.
android.provider.Settings has other similar ACTIONs for other Settings pages but there isn't even one for 'Call' never mind Call -> Additional Settings and nothing for the AlertDialog to allow you to choose to Hide/Show the outgoing Caller ID.
If this can be done then it would have to be an undocumented API unless I completely missed it (I spent a long time looking). I suspect examining the Android source-code may be the only way to find an answer and I haven't attempted that yet.
I have managed to get Additional call settings dialog. Explanation below:
Although it looks like it is part of the Settings, in fact it is part of the Native PhoneApp. If you take a look at the AndroidManifest.xml of the PhoneApp you will see that Activity GsmUmtsAdditionalCallOptions has defined IntentFilter for the android.intent.action.MAIN.
So, the code that I checked to work correctly on several phones:
Intent additionalCallSettingsIntent = new Intent("android.intent.action.MAIN");
ComponentName distantActivity = new ComponentName("com.android.phone", "com.android.phone.GsmUmtsAdditionalCallOptions");
additionalCallSettingsIntent.setComponent(distantActivity);
startActivity(additionalCallSettingsIntent);
If the #31# trick works for your needs for a single call then you could add a broadcast receiver that listens for the outgoing call notification and modifies the number to include #31# at the start before it gets dialled. Android allows the number to be changed on the way through like that.
Only works if your default is to enable caller ID and your network support #31# and you want to toggle it off using a widget, say.
The Caller ID is network specific not something that the phone controls. In fact in certain mobile network configurations the phone doesn't even 'know' its own phone number.
Some networks support sending an activate/deactivate caller ID network command. In GSM this is normally #31#. It can be permanent or on a per call basis.
Permanent requests the network to hide the caller ID for all calls.
Per call requests the network to hide the caller ID only for that call. The latter is achieved by prefixing the number being called by #31#, so for example calling #31#85432786426 would call 85432786426 hiding the caller.
Some networks support both, some only support one of them, and some do not enable it. Try your luck and try prefixing the dialed number with #31# and see if it works.
http://www.gsm-security.net/faq/gsm-caller-id-clip-clir.shtml
If you want a shortcut to the additional call settings, you can use App Cut and select GSM settings. It will place a shortcut on your home screen.

Detect if an outgoing call has been answered

Once ACTION_NEW_OUTGOING_CALL has been broadcasted, I need to capture the following event of the other party answer. Could you advice on how to achieve that please? I know it is possible as the Android dialer app changes the green Android icon to the person's photo exactly when they pick up.
UPDATED: I've had a look at the source of the app on Android handling the outgoing calls. I noticed the following method in ContactsUtils:
/**
* Kick off an intent to initiate a call.
*/
public static void initiateCall(Context context, CharSequence
phoneNumber) {
Intent intent = new Intent(Intent.ACTION_CALL_PRIVILEGED,
Uri.fromParts("tel", phoneNumber.toString(), null));
context.startActivity(intent); }
I guess my answer is in the activity listening for Intent.ACTION_CALL_PRIVILEGED. So to rephrase my question: Does anyone know which activity handles Intent.ACTION_CALL_PRIVILEGED?
I don't think there's such API and also there's no API for sending DTMFs due to the same reason that you can't tell when the call is being connected.
It does not necessarily needs to be possible to capture this as an outside app. The green android icon is a part of the application that controls the call, so it does not need a broadcast to change the icon.
As far as android's telephony manager is concerned u cannot detect programmatically whether the call has been answered or not. This is to say that u do not have the option to know when the user picked the phone at other end.
Android has got 3 states of telephony manager and none of them are capable of detecting whether the call was actually answerd or not(IN CASE OF OUTGOING CALLS)
The only way you may be able to do this is by parsing the Logcat logs, no PhoneStateListener event is available for that.
Some are asking for it here: https://code.google.com/p/android/issues/detail?id=14266
Anyway, in versions above Android 4.2 as Logcat is "sandboxed" it may be impossible...

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