allow changing contact source

app/src/main/kotlin/com/simplemobiletools/contacts/activities/ContactActivity.kt

@@ -273,6 +273,7 @@ class ContactActivity : SimpleActivity() {
             surname = contact_surname.value
             phoneNumbers = getFilledPhoneNumbers()
             emails = getFilledEmails()
+            source = contact_source.value
 
             /*if (ContactsHelper(this@ContactActivity).updateContact(this)) {
                 finish()
@@ -332,7 +333,24 @@ class ContactActivity : SimpleActivity() {
     }
 
     private fun showAccountSourcePicker() {
+        ContactsHelper(this).getContactSources {
+            val items = ArrayList<RadioItem>()
+            val sources = it
+            val currentSource = contact_source.value
+            var currentSourceIndex = -1
+            sources.forEachIndexed { index, account ->
+                items.add(RadioItem(index, account))
+                if (account == currentSource) {
+                    currentSourceIndex = index
+                }
+            }
 
+            runOnUiThread {
+                RadioGroupDialog(this, items, currentSourceIndex) {
+                    contact_source.text = sources[it as Int]
+                }
+            }
+        }
     }
 
     private fun trySendSMS() {

app/src/main/kotlin/com/simplemobiletools/contacts/helpers/ContactsHelper.kt

@@ -24,21 +24,26 @@ class ContactsHelper(val activity: BaseSimpleActivity) {
         val accounts = HashSet<String>()
         Thread {
             val uri = ContactsContract.RawContacts.CONTENT_URI
-            val projection = arrayOf(ContactsContract.RawContacts.ACCOUNT_NAME)
+            val projection = arrayOf(
+                    ContactsContract.RawContacts.ACCOUNT_NAME
+            )
+
+            val selection = "${ContactsContract.RawContacts.DIRTY} = ?"
+            val selectionArgs = arrayOf("0")
             var cursor: Cursor? = null
             try {
-                cursor = activity.contentResolver.query(uri, projection, null, null, null)
+                cursor = activity.contentResolver.query(uri, projection, selection, selectionArgs, null)
                 if (cursor?.moveToFirst() == true) {
                     do {
-                        accounts.add(cursor.getStringValue(ContactsContract.RawContacts.ACCOUNT_NAME))
+                        val name = cursor.getStringValue(ContactsContract.RawContacts.ACCOUNT_NAME)
+                        accounts.add(name)
                     } while (cursor.moveToNext())
                 }
             } finally {
                 cursor?.close()
             }
 
-            val sourcesWithContacts = ArrayList(accounts).filter { doesSourceContainContacts(it) } as ArrayList
+            callback(ArrayList(accounts))
-            callback(sourcesWithContacts)
         }.start()
     }