Android : Date picker does not Scroll properly inside Scroll view

i have coded a layout for android dialog.there is a date picker inside a Scroll view. When i am trying to change the date by scrolling it does not work properly .date-picker stucks. My layout is below

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="5dp" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:weightSum="4" >

        <TextView
            android:id="@+id/text_lang_payment_method"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="2"
            android:text="Payment Method :"
            android:textSize="20sp" />

        <Spinner
            android:id="@+id/spinnerPaymentMethod"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="2" />
    </LinearLayout>


    <LinearLayout
                    android:id="@+id/chequeLayout"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical"
                    android:weightSum="6" >

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:orientation="horizontal"
                        android:weightSum="4" >

                        <TextView
                            android:id="@+id/text_chequeno_lang"
                            android:layout_width="0dp"
                            android:layout_height="match_parent"
                            android:layout_weight="2"
                            android:gravity="center_vertical"
                            android:text="Cheque No:"
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textSize="20dp" />

                        <EditText
                            android:id="@+id/inputChequeNo"
                            android:layout_width="0dp"
                            android:layout_height="match_parent"
                            android:layout_alignParentEnd="true"
                            android:layout_alignParentRight="true"
                            android:layout_alignParentTop="true"
                            android:layout_toRightOf="@+id/textView10"
                            android:layout_weight="2"
                            android:ems="10"
                            android:inputType="number" />
                    </LinearLayout>

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:orientation="horizontal"
                        android:weightSum="2" >

                        <TextView
                            android:id="@+id/text_Cheque_date_lang"
                            android:layout_width="0dp"
                            android:layout_height="match_parent"
                            android:layout_alignParentStart="true"
                            android:layout_weight="1"
                            android:gravity="center_vertical"
                            android:text="Cheque Date:"
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textSize="20dp" />

                        <DatePicker
                            android:id="@+id/dpResult"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_weight="1"
                            android:calendarViewShown="false" />
                    </LinearLayout>

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:orientation="horizontal"
                        android:weightSum="4" >
                    </LinearLayout>

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:orientation="horizontal"
                        android:weightSum="4" >
                    </LinearLayout>

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:orientation="horizontal"
                        android:weightSum="2" >
                    </LinearLayout>

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:orientation="horizontal"
                        android:weightSum="4" >
                    </LinearLayout>

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:orientation="horizontal"
                        android:weightSum="4" >

                        <TextView
                            android:id="@+id/text_lang_cheque_amount"
                            android:layout_width="0dp"
                            android:layout_height="match_parent"
                            android:layout_weight="2"
                            android:gravity="center_vertical"
                            android:text="Cheque Amount :"
                            android:textAppearance="?android:attr/textAppearanceMedium"
                            android:textSize="20sp" />

                        <EditText
                            android:id="@+id/inputChequeAmount"
                            android:layout_width="0dp"
                            android:layout_height="match_parent"
                            android:layout_weight="2"
                            android:inputType="numberDecimal" />
                    </LinearLayout>
                </LinearLayout>



    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:weightSum="4" >
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:weightSum="4" >
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:weightSum="4" >
    </LinearLayout>

    <Button
        android:id="@+id/button_add_payment"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:background="@drawable/yellobutton"
        android:text="Add Payment" />

    <Button
        android:id="@+id/button_cancel"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:background="@drawable/yellobutton"
        android:text="Cancel" />

</LinearLayout>

How to pix this