Add (EDITED) tag in message tile.

Author: Sam1301

app/src/main/java/com/zulip/android/activities/RecyclerMessageAdapter.java

@@ -9,7 +9,6 @@
 import android.graphics.drawable.GradientDrawable;
 import android.net.Uri;
 import android.support.annotation.ColorInt;
-import android.support.annotation.Keep;
 import android.support.v4.content.ContextCompat;
 import android.support.v4.view.ViewCompat;
 import android.support.v7.app.AppCompatDelegate;
@@ -413,6 +412,14 @@ public void onClick(View view) {
                     messageHolder.messageTile.setBackgroundColor(privateMessageBackground);
                 }
 
+                // set visibility of edited tag
+                Boolean isEdited = message.isHasBeenEdited();
+                if (isEdited != null && isEdited) {
+                    messageHolder.edited.setVisibility(View.VISIBLE);
+                } else {
+                    messageHolder.edited.setVisibility(View.GONE);
+                }
+
                 setUpGravatar(message, messageHolder);
                 setUpTime(message, messageHolder);
                 break;

app/src/main/java/com/zulip/android/models/Message.java

@@ -689,10 +689,13 @@ public void updateFromHistory(@NonNull MessageHistory history) {
         editDate = history.date;
     }
 
-    public boolean isHasBeenEdited() {
+    public Boolean isHasBeenEdited() {
         return hasBeenEdited;
     }
 
+    public void setHasBeenEdited(boolean isEdited) {
+        this.hasBeenEdited = isEdited;
+    }
 
     //endregion
 

app/src/main/java/com/zulip/android/networking/AsyncGetEvents.java

@@ -490,6 +490,7 @@ private void processUpdateMessages(List<EventsBranch> updateEvents) {
             Message message = updateEvent.getMessage();
             if (message != null) {
                 message.setFormattedContent(updateEvent.getFormattedContent());
+                message.setHasBeenEdited(true);
 
                 // update the message in database
                 Dao<Message, Integer> messageDao = app.getDao(Message.class);

app/src/main/java/com/zulip/android/viewholders/MessageHolder.java

@@ -21,6 +21,7 @@ public class MessageHolder extends RecyclerView.ViewHolder implements View.OnCli
     public ImageView gravatar;
     public TextView senderName;
     public TextView timestamp;
+    public TextView edited;
     public TextView contentView;
     public View leftBar;
     public RelativeLayout messageTile;
@@ -33,6 +34,7 @@ public MessageHolder(final View itemView) {
         gravatar = (ImageView) itemView.findViewById(R.id.gravatar);
         senderName = (TextView) itemView.findViewById(R.id.senderName);
         timestamp = (TextView) itemView.findViewById(R.id.timestamp);
+        edited = (TextView) itemView.findViewById(R.id.message_edit_tag);
         contentView = (TextView) itemView.findViewById(R.id.contentView);
         contentView.setMovementMethod(LinkMovementMethod.getInstance());
         leftBar = itemView.findViewById(R.id.leftBar);

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

@@ -38,6 +38,15 @@
                 android:textStyle="bold"
                 tools:text="Sender <[email protected]>" />
 
+            <TextView
+                android:id="@+id/message_edit_tag"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:paddingRight="4dp"
+                android:text="@string/message_edited_tag"
+                android:textColor="@color/colorTextTertiary"
+                android:textSize="12sp"
+                android:visibility="gone"/>
             <TextView
                 android:id="@+id/timestamp"
                 android:layout_width="wrap_content"

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

@@ -138,4 +138,5 @@
     <string name="maximum_time_limit_error">Time limit exceeded</string>
     <string name="editing_message_disabled">Editing message is disabled</string>
     <string name="default_delete_text">(deleted)</string>
+    <string name="message_edited_tag">(EDITED)</string>
 </resources>