Set customized vibration with incoming call in android

Question

How can we set different vibration pattens for different contacts with incoming call ?

During my research and development I have refereed this :

1) How to provide customized vibration on specific incoming calls
2) How to change incoming call Vibration level when incoming call made?

But I didnt get success with this, while we can set different vibration petterns with different incoming call. its possible.

Example app :

1) https://play.google.com/store/apps/details?id=ac.vibration&hl=en

2) https://play.google.com/store/apps/details?id=com.bfc.morsecall

I hope that someone could give some advice on this issue. Comments on these two ways or other suggest are welcomed.

Answer 1

Create a custom vibrate pattern

First off, you will need to declare this permission in your manifest

<uses-permission android:name="android.permission.VIBRATE"/>

Secondly, you will need to get an instance of the Vibrator class

Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);

Here's a suggestion on how you can set up a custom vibrate pattern

// Start without a delay
// Each element then alternates between vibrate, sleep, vibrate, sleep...
long[] pattern = {0, 100, 1000, 300, 200, 100, 500, 200, 100};

// The '-1' here means to vibrate once, as '-1' is out of bounds in the pattern array
v.vibrate(pattern, -1);

Reference here

Get contact names

As usual, declare permission

<uses-permission android:name="android.permission.READ_CONTACTS" />

Fetch the contacts using a ContentResolver query. This query fetches contact id, name and telephone number as String.

ContentResolver cr = getContentResolver();
        Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI,
                null, null, null, null);
        if (cur.getCount() > 0) {
            while (cur.moveToNext()) {
                  String id = cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID));
                  String name = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));                      
                  if (Integer.parseInt(cur.getString(
                        cur.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
                     Cursor pCur = cr.query(
                               ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                               null,
                               ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = ?",
                               new String[]{id}, null);
                     while (pCur.moveToNext()) {
                         String phoneNo = pCur.getString(pCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                         Toast.makeText(NativeContentProvider.this, "Name: " + name + ", Phone No: " + phoneNo, Toast.LENGTH_SHORT).show();
                     }
                    pCur.close();
                }
            }
        }

Reference here

Map the contact to a vibrate pattern

This mapping storage could be done in a couple of ways, depending on your choice of persistent storage implementation. As I see it, there's two obvious ways

• Using an SQLite database, good tutorial here.
• Using SharedPreferences

Also, the actual mapping could be done either by id -> pattern, name -> pattern or phone_nr -> pattern. Again, it's your choice of implementation design. Personally, I'd implement database support because it supports maintainability and scaleability, mapping phone_nr -> pattern.

For example, you implement two methods to set your mapping, and another method to get that mapping from a given phone_nr.

Set mapping

public void setPatternMapping(String phonr_nr, long[] pattern){

    //Database call here. Example:
    try{
        database.open();
        database.setPattern(phone_nr, pattern);
        database.close();
    }catch(SQLiteException e){
        e.printStackTrace();
    }

}

Get pattern

public long[] getPattern(String phone_nr){

    //Database call here. Example:
    long[] pattern = null;
    try{
        database.open();
        pattern = database.setPattern(phone_nr, pattern);
        database.close();
    }catch(SQLiteException e){
        e.printStackTrace();
    }
    return pattern;

}

Putting it all to use

To listen to an incoming call, one could implement a listener in the form of a BroadcastReceiver. The receiver class listens for CallStateChange, so when you get an incoming call, you will get a hold on the incoming call telephone number. Pretty handy if you mapped the telephone number to your vibrate pattern, as shown above.

In your AndroidManifest.xml:

<receiver android:name=".CallReceiver" >
    <intent-filter>
        <action android:name="android.intent.action.PHONE_STATE" />
    </intent-filter>
</receiver> 

Receiver class

public class CallReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(final Context context, Intent intent) {
        TelephonyManager telephony = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
        telephony.listen(new PhoneStateListener(){
            @Override
            public void onCallStateChanged(int state, String incomingNumber) {
                super.onCallStateChanged(state, incomingNumber);

                //Make a database call, to get the vibrate pattern 
                long[] pattern = getPattern(incomingNumber);
                //Set the phone to vibrate using that pattern, if there was a mapping
                if(pattern != null){                     
                    Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
                    v.vibrate(pattern, -1);
                }
                System.out.println("incomingNumber : "+incomingNumber);
            }
        },PhoneStateListener.LISTEN_CALL_STATE);
    }
}

Edit

To turn off the vibration, you can use this code:

AudioManager am =(AudioManager)getSystemService(Context.AUDIO_SERVICE);
am.setRingerMode(AudioManager.RINGER_MODE_SILENT);

To enable it again:

am.setRingerMode(AudioManager.RINGER_MODE_NORMAL);