Update files to follow the code style.

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/message/MessageFormLayout.java

@@ -23,8 +23,8 @@ public class MessageFormLayout extends LinearLayout {
 
   protected ViewGroup composer;
 
-  private ImageButton attachmentImageButton;
-  private ImageButton sendImageButton;
+  private ImageButton attachButton;
+  private ImageButton sendButton;
 
   private ExtraActionSelectionClickListener extraActionSelectionClickListener;
   private SubmitTextListener submitTextListener;
@@ -55,18 +55,18 @@ public class MessageFormLayout extends LinearLayout {
     composer = (ViewGroup) LayoutInflater.from(getContext())
         .inflate(R.layout.message_composer, this, false);
 
-    attachmentImageButton = composer.findViewById(R.id.attachmentImageButton);
+    attachButton = composer.findViewById(R.id.button_attach);
 
-    attachmentImageButton.setOnClickListener(new OnClickListener() {
+    attachButton.setOnClickListener(new OnClickListener() {
       @Override
       public void onClick(View view) {
         onExtraActionSelectionClick();
       }
     });
 
-    sendImageButton = composer.findViewById(R.id.sendImageButton);
+    sendButton = composer.findViewById(R.id.button_send);
 
-    sendImageButton.setOnClickListener(new OnClickListener() {
+    sendButton.setOnClickListener(new OnClickListener() {
       @Override
       public void onClick(View view) {
         String messageText = getText();
@@ -76,9 +76,9 @@ public class MessageFormLayout extends LinearLayout {
       }
     });
 
-    sendImageButton.setScaleX(0);
-    sendImageButton.setScaleY(0);
-    sendImageButton.setVisibility(GONE);
+    sendButton.setScaleX(0);
+    sendButton.setScaleY(0);
+    sendButton.setVisibility(GONE);
 
     ImageKeyboardEditText editText = composer.findViewById(R.id.editor);
 
@@ -94,11 +94,11 @@ public class MessageFormLayout extends LinearLayout {
       @Override
       public void afterTextChanged(Editable s) {
         if (TextUtils.getTrimmedLength(s) > 0) {
-          animateHide(attachmentImageButton);
-          animateShow(sendImageButton);
+          animateHide(attachButton);
+          animateShow(sendButton);
         } else {
-          animateShow(attachmentImageButton);
-          animateHide(sendImageButton);
+          animateShow(attachButton);
+          animateHide(sendButton);
         }
       }
     });

rocket-chat-android-widgets/src/main/res/drawable/top_shadow.xml

@@ -2,7 +2,7 @@
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
     <item>
         <shape android:shape="rectangle">
-            <solid android:color="@color/colorShadow" />
+            <solid android:color="@color/color_shadow" />
         </shape>
     </item>
 

rocket-chat-android-widgets/src/main/res/layout/message_composer.xml

@@ -22,11 +22,11 @@
       android:background="@null"
       app:layout_constraintTop_toTopOf="parent"
       app:layout_constraintLeft_toLeftOf="parent"
-      app:layout_constraintRight_toLeftOf="@+id/imageButtonContainer"
+      app:layout_constraintRight_toLeftOf="@+id/container"
       app:layout_constraintBottom_toBottomOf="parent"/>
 
     <android.support.constraint.ConstraintLayout
-      android:id="@+id/imageButtonContainer"
+      android:id="@+id/container"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_marginLeft="16dp"
@@ -39,18 +39,18 @@
       app:layout_constraintBottom_toBottomOf="@+id/editor">
 
         <ImageButton
-          android:id="@+id/attachmentImageButton"
+          android:id="@+id/button_attach"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
-          android:tint="@color/colorDefaultMessageComposerIcon"
+          android:tint="@color/color_icon_composer"
           app:srcCompat="@drawable/ic_attach_file_black_24dp"
           android:background="?attr/selectableItemBackgroundBorderless"/>
 
         <ImageButton
-          android:id="@+id/sendImageButton"
+          android:id="@+id/button_send"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
-          android:tint="@color/colorAccent"
+          android:tint="@color/color_accent"
           app:srcCompat="@drawable/ic_send_black_24dp"
           android:background="?attr/selectableItemBackgroundBorderless"/>
     </android.support.constraint.ConstraintLayout>

rocket-chat-android-widgets/src/main/res/values/colors.xml

 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-  <color name="colorAccent">#FF2D91FA</color>
-  <color name="colorShadow">#FFE6E6E7</color>
-  <color name="colorDefaultMessageComposerIcon">#FFA8A8A8</color>
+  <color name="color_accent">#FF2D91FA</color>
+  <color name="color_shadow">#FFE6E6E7</color>
+  <color name="color_icon_composer">#FFA8A8A8</color>
 </resources>
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