Fixes #2097 Remove black screen overlay on start of Activity (#2104)

* Fixes #2097 Remove black screen overlay on start of Activity

* Use improved CSV logger data structure

Author: marcnause

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

@@ -9,10 +9,10 @@
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_marginEnd="@dimen/sensor_params_top"
+        android:layout_marginStart="@dimen/sensor_params_top"
         android:layout_marginLeft="@dimen/sensor_params_top"
+        android:layout_marginEnd="@dimen/sensor_params_top"
         android:layout_marginRight="@dimen/sensor_params_top"
-        android:layout_marginStart="@dimen/sensor_params_top"
         android:layout_marginBottom="@dimen/sensor_params_top"
         android:orientation="vertical">
 
@@ -32,21 +32,21 @@
         <android.support.v4.widget.NestedScrollView
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_marginEnd="@dimen/sensor_params_top"
-            android:layout_marginLeft="@dimen/sensor_params_top"
-            android:layout_marginRight="@dimen/sensor_params_top"
             android:layout_marginStart="@dimen/sensor_params_top"
-            android:layout_marginTop="@dimen/dialog_space_width">
+            android:layout_marginLeft="@dimen/sensor_params_top"
+            android:layout_marginTop="@dimen/dialog_space_width"
+            android:layout_marginEnd="@dimen/sensor_params_top"
+            android:layout_marginRight="@dimen/sensor_params_top">
 
             <TextView
                 android:id="@+id/tv_sensor_scan"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
                 android:background="@drawable/control_custom_border"
                 android:gravity="center"
+                android:text="@string/use_autoscan"
                 android:textAlignment="center"
-                android:textSize="@dimen/sensor_body_font"
-                android:text="@string/use_autoscan"/>
+                android:textSize="@dimen/sensor_body_font" />
         </android.support.v4.widget.NestedScrollView>
 
         <TextView
@@ -72,7 +72,9 @@
         android:id="@+id/shadow"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
+        android:alpha="0"
         android:background="@color/black" />
+
     <include layout="@layout/bottom_sheet_custom" />
 
 </android.support.design.widget.CoordinatorLayout>