<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="@dimen/header_height"
            android:id="@+id/imageView2"
            android:scaleType="fitCenter"
            android:src="@drawable/screen1"
            android:background="#3cdbff" />

        <ScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent">
            <LinearLayout
                android:orientation="vertical"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:padding="@dimen/space_16dp"
                android:layout_marginBottom="@dimen/space_16dp"
                android:layout_weight="3">

                <RelativeLayout
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/space_48dp">
                    <Button
                        android:id="@+id/facebook_login_button"
                        android:stateListAnimator="@null"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent" />
                    <ImageView
                        android:src="@drawable/facebook"
                        android:background="@drawable/facebook_bordered_rectangle"
                        android:layout_width="match_parent"
                        android:layout_height="match_parent" />
                </RelativeLayout>

                <LinearLayout
                    android:id="@+id/or_divider"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal"
                    android:layout_marginTop="10dp"
                    android:weightSum="4">
                    <View
                        android:background="@color/md_grey_500"
                        android:layout_gravity="center_vertical"
                        android:layout_width="match_parent"
                        android:layout_height="1dp"
                        android:layout_marginRight="5dp"
                        android:layout_weight="2"/>
                    <TextView
                        android:text="@string/login_o_divider"
                        android:textColor="@color/md_grey_500"
                        android:layout_width="wrap_content"
                        android:gravity="center_horizontal"
                        android:layout_height="wrap_content"/>
                    <View
                        android:background="@color/md_grey_500"
                        android:layout_gravity="center_vertical"
                        android:layout_width="match_parent"
                        android:layout_marginLeft="5dp"
                        android:layout_height="1dp"
                        android:layout_weight="2"/>
                </LinearLayout>


                <android.support.design.widget.TextInputLayout
                    android:id="@+id/to_text_input_layout"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content">
                    <EditText
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:id="@+id/editText2"
                        android:hint="@string/username"
                        android:inputType="text"
                        android:maxLength="100" />
                </android.support.design.widget.TextInputLayout>

                <android.support.design.widget.TextInputLayout
                    android:id="@+id/to_text_input_layout"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content">
                    <EditText
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:id="@+id/editText3"
                        android:hint="@string/password"
                        android:inputType="textPassword"
                        android:maxLength="20" />
                </android.support.design.widget.TextInputLayout>



                <Button
                    android:id="@+id/button2"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:onClick="loginclick"
                    android:text="@string/login"
                    android:layout_marginTop="@dimen/space_16dp" />

                <LinearLayout
                    android:orientation="horizontal"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_horizontal"
                    android:layout_marginLeft="40dp"
                    android:layout_marginRight="40dp"
                    android:layout_marginTop="10dp">

                    <Button
                        android:id="@+id/button4"
                        android:layout_width="wrap_content"
                        android:visibility="gone"
                        android:layout_height="50dp" />


                </LinearLayout>
                <Button
                    android:id="@+id/button3"
                    android:layout_marginTop="@dimen/space_16dp"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:onClick="btnregister"
                    android:text="@string/btnRegistrazione"
                    style="@style/BorderlessButton"
                    android:layout_gravity="center_horizontal" />

                <Button
                    android:id="@+id/button6"
                    android:layout_width="wrap_content"
                    android:layout_gravity="center_horizontal"
                    android:layout_height="wrap_content"
                    style="@style/BorderlessButton"
                    android:text="@string/ignora_btn"
                    android:onClick="ignoraclick"/>

            </LinearLayout>

        </ScrollView>
    </LinearLayout>

</RelativeLayout>