How to get outgoing call duration in real time?

Question

Possible Duplicate:
It's possible to get outgoing call duration during call?

I need to show real-time outgoing call duration.

But I do not know when I should start timer.

I must start when get answer from other side. I tried TelephonyManager.EXTRA_STATE_OFFHOOK -- but it's state is when I press call-button..

OFFHOOK is the state when call is placed. So we should be notified when the call is received.

How can we get that? Can You help me? When I should start count outgoing time?

Thanks

upd..

I think this data produces mobile operator server. And this server return call-duration and current balance after each outgoing call . Maybe It's right?

I can't find any solution, but after each call value of call duration will be stored in db. We can get it by CallLog.Calls.DURATION How this value populate field in db?

did you solve this problem? would also like to know the answer about incoming calls and not just outgoing calls. — android developer, Sep 30 '13 at 11:37
+android developer No, unfortunately I don't have found correct solution.. I can get duration of the call only when call is finished. — vsvydenko, Sep 30 '13 at 14:26

score 4 · Answer 1 · answered May 04 '12 at 08:51

Using a content Observer to listen Call Logs content URI if it changed:

ContentResolver contentResolver = context.getContentResolver();
CallLogObserver mObserver = new CallLogObserver(new Handler(), context);
contentResolver.registerContentObserver(
    Uri.parse("content://call_log/calls"), true, mObserver);

This is your CallLogObserver:

public class CallLogObserver extends ContentObserver {
    private Context context;

    public CallLogObserver(Handler handler, Context context) {
        super(handler);
        this.context = context;
    }

    @Override
    public void onChange(boolean selfChange) {
        super.onChange(selfChange);
        Log.i(TAG, "CallLogs Onhange()");
        try{
            Cursor c = context.getContentResolver().query(CallLog.Calls.CONTENT_URI, null,
                    null, null, CallLog.Calls.DATE + " DESC");
            if (c != null) {
                if (c.moveToFirst()) {
                    int type = Integer.parseInt(c.getString(c
                            .getColumnIndex(CallLog.Calls.TYPE)));
                    /*
                     * increase call counter for outgoing call only
                     */
                    if (type == 2){
                        String number = c.getString(c
                                .getColumnIndex(CallLog.Calls.NUMBER));

                        long duration = c.getLong(c
                                .getColumnIndex(CallLog.Calls.DURATION));

                                                    Log.i(TAG, "numer = " + number + " type = " + type + " duration = " + duration);

                                                }
                }
                c.close();
            }
            else
                Log.e(TAG,"Call Logs Cursor is Empty");
        }
        catch(Exception e){
            Log.e(TAG, "Error on onChange : "+ e.toString());
        }

    }

This doesn't get the duration in real time, the duration of the call is added to the log after the call is finished. — Hakem Zaied, Jul 12 '13 at 12:10
This is a decent solution but do not catch all exceptions, this is a really bad practice. `try .. catch` block is unnecessary unless the developer wants to add it explicitly — George Pligoropoulos, Mar 11 '14 at 10:17
You can replace the hardcoded string `Uri.parse("content://call_log/calls")` with this reference from inside android library itself: `android.provider.CallLog.Calls.CONTENT_URI` — George Pligoropoulos, Mar 11 '14 at 11:32

How to get outgoing call duration in real time?

1 Answers1