Add long click description

Author: sunnyfeng

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

@@ -4,6 +4,19 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginEnd="8dp"
+        android:fontFamily="sans-serif-condensed-medium"
+        android:text="Press and hold in order to confirm you have watered the plant!"
+        android:textAppearance="@style/TextAppearance.AppCompat.Small"
+        android:textColor="@android:color/black"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
     <Button
         android:id="@+id/addPlantButton"
         android:layout_width="wrap_content"
@@ -19,10 +32,9 @@
         android:layout_width="match_parent"
         android:layout_height="0dp"
         android:layout_marginStart="8dp"
-        android:layout_marginTop="8dp"
         android:layout_marginEnd="8dp"
         app:layout_constraintBottom_toTopOf="@+id/addPlantButton"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toBottomOf="@+id/textView" />
 </androidx.constraintlayout.widget.ConstraintLayout>