How to remove a contact programmatically in android

Question

I try the following code to remove contact with a specified number:

private void removeContact(Context context, String phone) {
    //context.getContentResol         


        

Answer 1

This code works perfect for me to remove the contact from its identifier (ContactsContract.Contacts._ID)

Telephone registration for all numbers of that contact must be removed independently

  fun deleteContactById(id: String) {
      val cr = context.contentResolver
      val cur = cr.query(ContactsContract.Contacts.CONTENT_URI,
                    null, null, null, null)
      cur?.let {
          try {
                    if (it.moveToFirst()) {
                        do {
                            if (cur.getString(cur.getColumnIndex(ContactsContract.PhoneLookup._ID)) == id) {
                                val lookupKey = cur.getString(cur.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY))
                                val uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_LOOKUP_URI, lookupKey)
                                cr.delete(uri, null, null)
                                break
                            }

                        } while (it.moveToNext())
                    }

                } catch (e: Exception) {
                    println(e.stackTrace)
                } finally {
                    it.close()
                }
            }
}