ScrollView Overlaps Toolbar

I'm trying to use ScrollView and Toolbar as the only childs of LinearLayout but they overlap each other. Searched a bit but didn't find anything useful, any idea how to solve this rather than giving padding/margin to ScrollView?

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:float="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:gravity="right"
android:background="@color/white_dark_50">

<android.support.v7.widget.Toolbar
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/toolbar"
    android:theme="@style/AppTheme"
    android:scrollbarStyle="outsideOverlay"
    android:gravity="center_vertical|right"
    android:layout_alignParentTop="true"
    android:background="@color/colorPrimary"
    >
    <!-- -->



</android.support.v7.widget.Toolbar>



<ScrollView
    android:scrollbarStyle="outsideOverlay"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="1"
    android:layout_gravity="center"
    android:background="@color/white_dark_50" >
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:gravity="right"
        android:background="@color/white_dark_50">


        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="ایجاد جمله جدید"
            android:id="@+id/new_sentence_title"
            android:textColor="@color/midnight_blue"
            android:layout_margin="10dp"
            android:textStyle="bold"
            android:gravity="center_vertical"
            android:drawableRight="@drawable/ic_colored_doll"
            android:textAppearance="?android:attr/textAppearanceLarge"
            />

        <View
            android:layout_width="match_parent"
            android:layout_height="3dp"
            android:layout_marginLeft="25dp"
            android:layerType="software"
            android:layout_marginRight="25dp"
            android:background="@drawable/dashed_line" />

        <com.wrapp.floatlabelededittext.FloatLabeledEditTextRightSided
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginRight="5dp"
            android:layout_marginLeft="5dp"
            android:layout_marginBottom="5dp"
            float:fletPaddingLeft="10dp"
            float:fletPaddingRight="10dp"
            android:id="@+id/new_sentence_name"
            float:fletPadding="10dp">

            <EditText
                android:layout_marginLeft="10dp"
                android:id="@+id/new_sentence_name_et"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:theme="@style/AppTheme"
                android:backgroundTint="@color/accentColor"
                android:singleLine="true"
                android:textColor="@color/midnight_blue"
                android:textColorHint="@color/hintColor"
                android:maxLength="20"
                android:drawableRight="@drawable/ic_name"
                android:gravity="center_vertical|right"
                android:hint="عنوان"/>
        </com.wrapp.floatlabelededittext.FloatLabeledEditTextRightSided>


        <com.wrapp.floatlabelededittext.FloatLabeledEditTextRightSided
            android:layout_width="match_parent"
            android:foregroundGravity="center_vertical|right"
            android:layout_height="wrap_content"
            android:layout_marginRight="5dp"
            android:layout_marginLeft="5dp"
            android:layout_marginBottom="5dp"
            float:fletPaddingLeft="10dp"
            float:fletPaddingRight="10dp"
            android:id="@+id/new_sentence_period"
            float:fletPadding="10dp">

            <EditText
                android:id="@+id/new_sentence_period_et"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:theme="@style/AppTheme"
                android:backgroundTint="@color/accentColor"
                android:singleLine="true"
                android:layout_marginLeft="10dp"
                android:inputType="number"
                android:textColor="@color/midnight_blue"
                android:textColorHint="@color/hintColor"
                android:maxLength="20"
                android:drawableRight="@drawable/ic_name"
                android:gravity="center_vertical|right"
                android:hint="دوره تکرار"/>
        </com.wrapp.floatlabelededittext.FloatLabeledEditTextRightSided>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_marginRight="5dp"
            android:gravity="center_vertical|right">


            <Spinner
                android:id="@+id/repeat_kind"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                style="@style/AppTheme"
                android:minHeight="25dp"
                android:gravity="right"
                android:layout_marginRight="5dp"
                android:layout_marginLeft="10dp"
                />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="نوع تکرار"
                android:id="@+id/doll_type_tv"
                android:textColor="@color/midnight_blue"
                android:layout_margin="10dp"
                android:gravity="center_vertical"
                android:drawableRight="@drawable/ic_doll"
                android:textAppearance="?android:attr/textAppearanceMedium" />


        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_marginRight="5dp"
            android:gravity="center_vertical|right">


            <com.gc.materialdesign.views.ButtonFlat
                android:id="@+id/date_button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@color/blue"
                android:text="Button"/>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="تاریخ تکرار"
                android:textColor="@color/midnight_blue"
                android:layout_margin="10dp"
                android:gravity="center_vertical"
                android:drawableRight="@drawable/ic_doll"
                android:textAppearance="?android:attr/textAppearanceMedium" />
        </LinearLayout>


        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_marginRight="5dp"
            android:gravity="center_vertical|right">


            <com.gc.materialdesign.views.ButtonFlat
                android:id="@+id/time_button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@color/blue"
                android:text="Button"/>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="زمان تکرار"
                android:textColor="@color/midnight_blue"
                android:layout_margin="10dp"
                android:gravity="center_vertical"
                android:drawableRight="@drawable/ic_doll"
                android:textAppearance="?android:attr/textAppearanceMedium" />
        </LinearLayout>






        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:layout_marginBottom="10dp"
            android:layout_marginRight="5dp"
            android:gravity="center_vertical|right">


            <ImageView
                android:id="@+id/doll_pic_IV"
                android:layout_width="150dp"
                android:layout_height="150dp"
                style="@style/AppTheme"
                android:minHeight="25dp"
                android:scaleType="fitXY"
                android:gravity="right"
                android:layout_marginRight="5dp"
                android:layout_marginLeft="10dp"
                android:src="@drawable/ic_image_add_to_photos"
                />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="انتخاب صدا"
                android:textColor="@color/midnight_blue"
                android:layout_margin="10dp"
                android:gravity="center_vertical"
                android:id="@+id/pic_tv"
                android:drawableRight="@drawable/ic_image"
                                                                                   android:textAppearance="?android:attr/textAppearanceMedium" />
        </LinearLayout>

    </LinearLayout>
</ScrollView>

Apparently the problem wasn't overlapping Toolbar with ScrollView, but rather was with ScrollView itself. The problem was arrising from gravity of the only child on ScrollView, so removing gravity from LinearLayout inside ScrollView and the problem was solved. It seems like a bug to me maybe I should contact google and let them know 'bout this.