improve the logic to render username and message alias

app/src/main/java/chat/rocket/android/layouthelper/chatroom/AbstractMessageViewHolder.java

@@ -14,6 +14,7 @@ import chat.rocket.android.realm_helper.RealmModelViewHolder;
 public abstract class AbstractMessageViewHolder extends RealmModelViewHolder<PairedMessage> {
   protected final ImageView avatar;
   protected final TextView username;
+  protected final TextView subUsername;
   protected final TextView timestamp;
   protected final View userAndTimeContainer;
   protected final String hostname;
@@ -29,6 +30,7 @@ public abstract class AbstractMessageViewHolder extends RealmModelViewHolder<Pai
     super(itemView);
     avatar = (ImageView) itemView.findViewById(R.id.user_avatar);
     username = (TextView) itemView.findViewById(R.id.username);
+    subUsername = (TextView) itemView.findViewById(R.id.sub_username);
     timestamp = (TextView) itemView.findViewById(R.id.timestamp);
     userAndTimeContainer = itemView.findViewById(R.id.user_and_timestamp_container);
     newDayContainer = itemView.findViewById(R.id.newday_container);

app/src/main/java/chat/rocket/android/layouthelper/chatroom/MessageNormalViewHolder.java

@@ -31,7 +31,7 @@ public class MessageNormalViewHolder extends AbstractMessageViewHolder {
   protected void bindMessage(PairedMessage pairedMessage) {
     new MessageRenderer(itemView.getContext(), pairedMessage.target)
         .avatarInto(avatar, hostname)
-        .usernameInto(username)
+        .usernameInto(username, subUsername)
         .timestampInto(timestamp)
         .bodyInto(body)
         .urlsInto(urls)

app/src/main/java/chat/rocket/android/layouthelper/chatroom/MessageSystemViewHolder.java

@@ -24,7 +24,7 @@ public class MessageSystemViewHolder extends AbstractMessageViewHolder {
   protected void bindMessage(PairedMessage pairedMessage) {
     new MessageRenderer(itemView.getContext(), pairedMessage.target)
         .avatarInto(avatar, hostname)
-        .usernameInto(username)
+        .usernameInto(username, subUsername)
         .timestampInto(timestamp);
 
     if (pairedMessage.target != null) {

app/src/main/java/chat/rocket/android/renderer/MessageRenderer.java

 package chat.rocket.android.renderer;
 
 import android.content.Context;
-import android.graphics.Color;
-import android.text.Spannable;
-import android.text.SpannableStringBuilder;
-import android.text.style.ForegroundColorSpan;
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;
-
 import com.squareup.picasso.Picasso;
 
 import chat.rocket.android.R;
@@ -53,12 +48,14 @@ public class MessageRenderer extends AbstractRenderer<Message> {
   /**
    * show Username in textView.
    */
-  public MessageRenderer usernameInto(TextView textView) {
+  public MessageRenderer usernameInto(TextView usernameTextView, TextView subUsernameTextView) {
     if (TextUtils.isEmpty(object.getAlias())) {
-      userRenderer.usernameInto(textView);
+      userRenderer.usernameInto(usernameTextView);
+      if (subUsernameTextView != null) {
+        subUsernameTextView.setVisibility(View.GONE);
+      }
     } else {
-      final User user = object.getUser();
-      setAliasInto(object.getAlias(), user == null ? null : user.getUsername(), textView);
+      aliasAndUsernameInto(usernameTextView, subUsernameTextView);
     }
     return this;
   }
@@ -146,21 +143,19 @@ public class MessageRenderer extends AbstractRenderer<Message> {
         .into(imageView);
   }
 
-  private void setAliasInto(String alias, String username, TextView textView) {
-    final SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder();
-    final ForegroundColorSpan foregroundColorSpan = new ForegroundColorSpan(Color.BLACK);
-
-    spannableStringBuilder.append(alias);
-
-    if (username != null) {
-      spannableStringBuilder.append(" @");
-      spannableStringBuilder.append(username);
+  private void aliasAndUsernameInto(TextView aliasTextView, TextView usernameTextView) {
+    if (shouldHandle(aliasTextView)) {
+      aliasTextView.setText(object.getAlias());
     }
 
-    spannableStringBuilder
-        .setSpan(foregroundColorSpan, 0, alias.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
-
-    textView.setText(spannableStringBuilder);
+    if (shouldHandle(usernameTextView)) {
+      if (object.getUser() != null) {
+        usernameTextView.setText("@" + object.getUser().getUsername());
+        usernameTextView.setVisibility(View.VISIBLE);
+      } else {
+        usernameTextView.setVisibility(View.GONE);
+      }
+    }
   }
 
 }

app/src/main/java/chat/rocket/android/renderer/UserRenderer.java

 package chat.rocket.android.renderer;
 
 import android.content.Context;
-import android.graphics.Color;
-import android.text.Spannable;
-import android.text.SpannableStringBuilder;
-import android.text.style.ForegroundColorSpan;
 import android.widget.ImageView;
 import android.widget.TextView;
 
@@ -44,14 +40,7 @@ public class UserRenderer extends AbstractRenderer<User> {
       return this;
     }
 
-    final SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder();
-    final ForegroundColorSpan foregroundColorSpan = new ForegroundColorSpan(Color.BLACK);
-
-    spannableStringBuilder.append(object.getUsername());
-    spannableStringBuilder.setSpan(foregroundColorSpan, 0, object.getUsername().length(),
-        Spannable.SPAN_INCLUSIVE_INCLUSIVE);
-
-    textView.setText(spannableStringBuilder);
+    textView.setText(object.getUsername());
 
     return this;
   }

app/src/main/res/layout/list_item_normal_message.xml

@@ -39,9 +39,20 @@
                         android:id="@+id/username"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:textStyle="bold"
+                        android:textAppearance="@style/TextAppearance.RocketChat.Message.Username"
                         tools:text="John Doe" />
 
+                <Space
+                        android:layout_width="4dp"
+                        android:layout_height="wrap_content" />
+
+                <TextView
+                        android:id="@+id/sub_username"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:textAppearance="@style/TextAppearance.RocketChat.Message.SubUsername"
+                        tools:text="\@John Doe" />
+
                 <Space
                         android:layout_width="@dimen/margin_8"
                         android:layout_height="wrap_content" />

app/src/main/res/layout/list_item_system_message.xml

@@ -38,7 +38,7 @@
                         android:id="@+id/username"
                         android:layout_width="wrap_content"
                         android:layout_height="wrap_content"
-                        android:textStyle="bold"
+                        android:textAppearance="@style/TextAppearance.RocketChat.Message.Username"
                         tools:text="John Doe" />
 
                 <Space

app/src/main/res/values/message_styles.xml

@@ -2,4 +2,10 @@
 <resources>
     <color name="newday_color">#e0e0e0</color>
     <color name="newday_text_color">#444444</color>
+    <style name="TextAppearance.RocketChat.Message.Username" parent="TextAppearance.AppCompat.Body2">
+        <item name="android:textColor">#bb000000</item>
+    </style>
+    <style name="TextAppearance.RocketChat.Message.SubUsername" parent="TextAppearance.AppCompat.Body1">
+        <item name="android:textColor">#5f000000</item>
+    </style>
 </resources>
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