bug fixes

app/src/main/AndroidManifest.xml

@@ -12,6 +12,7 @@
             android:theme="@style/AppTheme">
         <activity
                 android:name=".MainActivity"
+                android:screenOrientation="portrait"
                 android:label="@string/app_name"
                 android:theme="@style/AppTheme.NoActionBar">
             <intent-filter>
@@ -22,6 +23,7 @@
         </activity>
         <activity
                 android:name=".ScrollingActivity"
+                android:screenOrientation="portrait"
                 android:label="@string/title_activity_scrolling"
                 android:parentActivityName=".MainActivity"
                 android:theme="@style/AppTheme.NoActionBar">
@@ -31,6 +33,7 @@
         </activity>
         <activity
                 android:name=".ReceiveActivity"
+                android:screenOrientation="portrait"
                 android:label="@string/title_activity_receive"
                 android:parentActivityName=".MainActivity"
                 android:theme="@style/AppTheme.NoActionBar">
@@ -40,6 +43,7 @@
         </activity>
         <activity
                 android:name=".SendActivity"
+                android:screenOrientation="portrait"
                 android:label="@string/title_activity_send"
                 android:parentActivityName=".MainActivity"
                 android:theme="@style/AppTheme.NoActionBar">

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

@@ -50,8 +50,16 @@
             app:layout_constraintStart_toStartOf="parent" android:id="@+id/scrollView3"
             app:layout_constraintBottom_toBottomOf="parent" android:layout_marginBottom="16dp"
             android:fillViewport="true" android:clipToPadding="false">
-        <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content"
-                      android:orientation="vertical"/>
+        <android.support.constraint.ConstraintLayout android:layout_width="match_parent"
+                                                     android:layout_height="wrap_content"
+                                                     android:id="@+id/constraintLayout2">
+            <ImageView
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content" app:srcCompat="@android:drawable/sym_def_app_icon"
+                    android:id="@+id/imageView5"
+                    app:layout_constraintEnd_toEndOf="parent" app:layout_constraintTop_toTopOf="parent"
+                    app:layout_constraintStart_toStartOf="parent" app:layout_constraintBottom_toBottomOf="parent"/>
+        </android.support.constraint.ConstraintLayout>
     </ScrollView>
     <ImageView
             android:layout_width="wrap_content"

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

@@ -17,7 +17,7 @@
             android:layout_marginEnd="16dp" android:layout_marginStart="16dp"
             app:layout_constraintBottom_toTopOf="@id/AmountLayout"
             android:layout_marginBottom="8dp" app:layout_constraintTop_toTopOf="parent" android:layout_marginTop="16dp"
-            android:background="@drawable/layout_bg">
+    >
         <TextView
                 android:text="To"
                 android:layout_width="wrap_content"
@@ -62,7 +62,8 @@
             app:layout_constraintStart_toStartOf="parent" android:id="@+id/AmountLayout"
             android:layout_marginStart="16dp"
             android:layout_marginEnd="16dp"
-            app:layout_constraintBottom_toTopOf="@id/MemoLayout" app:layout_constraintTop_toBottomOf="@id/toLayout">
+            app:layout_constraintBottom_toTopOf="@id/MemoLayout" app:layout_constraintTop_toBottomOf="@id/toLayout"
+            android:background="@drawable/layout_bg">
         <EditText
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content" app:layout_constraintTop_toTopOf="parent"
@@ -109,7 +110,7 @@
             android:id="@+id/MemoLayout" android:layout_marginTop="8dp"
             app:layout_constraintTop_toBottomOf="@id/AmountLayout" app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintEnd_toEndOf="parent" android:layout_marginStart="16dp" android:layout_marginEnd="16dp"
-            android:background="@drawable/layout_bg" android:layout_marginBottom="8dp"
+            android:layout_marginBottom="8dp"
             app:layout_constraintBottom_toTopOf="@+id/button3">
         <EditText
                 android:layout_width="0dp"