parametrize editor background drawable

app/src/main/java/gr/thmmy/mthmmy/utils/EditorView.java

@@ -4,7 +4,7 @@ import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.res.TypedArray;
-import android.graphics.Rect;
+import android.graphics.drawable.Drawable;
 import android.support.annotation.Nullable;
 import android.support.design.widget.TextInputEditText;
 import android.support.design.widget.TextInputLayout;
@@ -65,6 +65,12 @@ public class EditorView extends LinearLayout {
             a.recycle();
         }
 
+        // without this, the editor gets default window background
+        Drawable background = getBackground();
+        for (int i = 0; i < getChildCount(); i++) {
+            getChildAt(i).setBackground(background);
+        }
+
         emojiButton = findViewById(R.id.emoji_keyboard_button);
 
         editText.setOnTouchListener((v, event) -> {

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

@@ -84,6 +84,7 @@
                 android:id="@+id/reply_editorview"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
+                android:background="@color/card_background"
                 card_view:hint="Post message" />
         </LinearLayout>
     </android.support.v7.widget.CardView>

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

@@ -8,8 +8,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="horizontal"
-        app:columnWidth="36dp"
-        android:background="@color/card_background">
+        app:columnWidth="36dp">
         <!--bold, italic, etc buttons-->
         <android.support.v7.widget.AppCompatImageButton
             android:id="@+id/bold_button"
@@ -121,7 +120,6 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="horizontal"
-        android:background="@color/card_background"
         android:paddingLeft="16dp"
         android:paddingRight="16dp">