use display name to generate own avatar

src/main/java/eu/siacs/conversations/parser/MessageParser.java

@@ -28,6 +28,7 @@ import eu.siacs.conversations.entities.ReceiptRequest;
 import eu.siacs.conversations.http.HttpConnectionManager;
 import eu.siacs.conversations.http.P1S3UrlStreamHandler;
 import eu.siacs.conversations.services.MessageArchiveService;
+import eu.siacs.conversations.services.QuickConversationsService;
 import eu.siacs.conversations.services.XmppConnectionService;
 import eu.siacs.conversations.utils.CryptoHelper;
 import eu.siacs.conversations.xml.Namespace;
@@ -229,6 +230,9 @@ public class MessageParser extends AbstractParser implements OnMessagePacketRece
     private void setNick(Account account, Jid user, String nick) {
         if (user.asBareJid().equals(account.getJid().asBareJid())) {
             account.setDisplayName(nick);
+            if (QuickConversationsService.isQuicksy()) {
+                mXmppConnectionService.getAvatarService().clear(account);
+            }
         } else {
             Contact contact = account.getRoster().getContact(user);
             if (contact.setPresenceName(nick)) {

src/main/java/eu/siacs/conversations/services/AvatarService.java

@@ -11,6 +11,7 @@ import android.graphics.Rect;
 import android.graphics.Typeface;
 import android.net.Uri;
 import android.support.annotation.Nullable;
+import android.text.TextUtils;
 import android.util.DisplayMetrics;
 import android.util.Log;
 import android.util.LruCache;
@@ -392,7 +393,13 @@ public class AvatarService implements OnAdvancedStreamFeaturesLoaded {
 		}
 		avatar = mXmppConnectionService.getFileBackend().getAvatar(account.getAvatar(), size);
 		if (avatar == null) {
-			avatar = get(account.getJid().asBareJid().toString(), null, size, false);
+			final String displayName = account.getDisplayName();
+			final String jid = account.getJid().asBareJid().toEscapedString();
+			if (QuickConversationsService.isQuicksy() && !TextUtils.isEmpty(displayName)) {
+				avatar = get(displayName, jid, size, false);
+			} else {
+				avatar = get(jid, null, size, false);
+			}
 		}
 		mXmppConnectionService.getBitmapCache().put(KEY, avatar);
 		return avatar;

src/main/java/eu/siacs/conversations/services/XmppConnectionService.java

@@ -3849,6 +3849,7 @@ public class XmppConnectionService extends Service {
 		} else {
             request = mIqGenerator.publishNick(displayName);
         }
+        mAvatarService.clear(account);
         sendIqPacket(account, request, (account1, packet) -> {
             if (packet.getType() == IqPacket.TYPE.ERROR) {
                 Log.d(Config.LOGTAG, account1.getJid().asBareJid() + ": unable to modify nick name "+packet.toString());

src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java

@@ -567,10 +567,15 @@ public class EditAccountActivity extends OmemoActivity implements OnAccountUpdat
             updateDisplayName(displayName);
             mAccount.setDisplayName(displayName);
             xmppConnectionService.publishDisplayName(mAccount);
+            refreshAvatar();
             return null;
         }, true);
     }
 
+    private void refreshAvatar() {
+        binding.avater.setImageBitmap(avatarService().get(mAccount, (int) getResources().getDimension(R.dimen.avatar_on_details_screen_size)));
+    }
+
     @Override
     public boolean onCreateOptionsMenu(final Menu menu) {
         super.onCreateOptionsMenu(menu);