I need to use a <scrollview> layout that consists of some EditTexts and a linear of Buttons at the bottom, but the problem is when the soft keyboard is out, the layout doesn't scroll and it hides the Buttons' linear completely and the main linear (@+id/main) goes out of the screen! 
Here's a recap of my layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="#03A9F4"
  android:gravity="center"
  >
  <RelativeLayout
    android:id="@+id/main"
    android:layout_width="310dip"
    android:layout_height="485dip"
    android:background="#03A9F4"
    android:gravity="center">
    <RelativeLayout
      android:layout_width="match_parent"
      android:layout_height="435dip"
      android:layout_alignParentBottom="true"
      android:layout_alignParentTop="false"
      android:background="@drawable/border_signup_signin_auth">
      <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
        <LinearLayout
          android:layout_width="match_parent"
          android:layout_height="70dip"
          android:orientation="vertical"
          tools:ignore="UselessLeaf">
        </LinearLayout>
        <ScrollView
          android:id="@+id/ScrollMain"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:isScrollContainer="false"
          >
          <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">
            <LinearLayout
              android:layout_width="match_parent"
              android:layout_height="80dip"
              android:baselineAligned="false"
              android:orientation="horizontal"
              android:paddingLeft="10dip"
              android:paddingRight="10dip">
              <LinearLayout
                android:layout_width="0dip"
                android:layout_height="match_parent"
                android:layout_weight="0.5"
                android:orientation="vertical"
                android:paddingEnd="5dip"
                tools:ignore="RtlSymmetry">
                <com.rengwuxian.materialedittext.MaterialEditText
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"/>
              </LinearLayout>
              <LinearLayout
                android:layout_width="0dip"
                android:layout_height="match_parent"
                android:layout_weight="0.5"
                android:orientation="vertical">
                <com.rengwuxian.materialedittext.MaterialEditText
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"/>
              </LinearLayout>
            </LinearLayout>
            <LinearLayout
              android:layout_width="match_parent"
              android:layout_height="80dip"
              android:baselineAligned="false"
              android:orientation="horizontal"
              android:paddingLeft="10dip"
              android:paddingRight="10dip">
              <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="0.5"
                android:orientation="vertical"
                android:paddingEnd="5dip"
                tools:ignore="RtlSymmetry">
                <com.rengwuxian.materialedittext.MaterialEditText
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  />
              </LinearLayout>
              <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="0.5"
                android:orientation="vertical">
                <com.rengwuxian.materialedittext.MaterialEditText
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"/>
              </LinearLayout>
            </LinearLayout>
            <LinearLayout
              android:layout_width="match_parent"
              android:layout_height="70dip"
              android:baselineAligned="false"
              android:orientation="horizontal"
              android:paddingLeft="10dip"
              android:paddingRight="10dip">
              <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="0.5"
                android:orientation="vertical"
                android:paddingEnd="5dip"
                tools:ignore="RtlSymmetry">
                <com.rengwuxian.materialedittext.MaterialEditText
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"/>
              </LinearLayout>
              <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="0.5"
                android:orientation="vertical">
                <com.rengwuxian.materialedittext.MaterialEditText
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  />
              </LinearLayout>
            </LinearLayout>
            <LinearLayout
              android:layout_width="match_parent"
              android:layout_height="70dip"
              android:orientation="vertical"
              android:paddingEnd="10dip"
              tools:ignore="RtlSymmetry">
              <com.rengwuxian.materialedittext.MaterialEditText
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                />
            </LinearLayout>
            <LinearLayout
              android:layout_width="match_parent"
              android:layout_height="60dip"
              android:baselineAligned="false"
              android:orientation="horizontal"
              android:paddingLeft="5dip"
              android:paddingRight="5dip">
              <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="0.5"
                android:orientation="vertical">
                <Button
                  android:id="@+id/btnSignUp"
                  android:layout_width="fill_parent"
                  android:layout_height="fill_parent"
                  android:text="test"
                  android:textSize="16sp"/>
              </LinearLayout>
              <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="0.5"
                android:orientation="vertical">
                <Button
                  android:id="@+id/btnGuest"
                  android:layout_width="fill_parent"
                  android:layout_height="fill_parent"
                  android:text="test"
                  android:textSize="16sp"
                  />
              </LinearLayout>
            </LinearLayout>
          </LinearLayout>
        </ScrollView>
      </LinearLayout>
    </RelativeLayout>
    <ImageView
      android:id="@+id/imageView"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_centerHorizontal="true"
      android:layout_centerInParent="false"
      android:contentDescription="TODO"
      app:srcCompat="@mipmap/signup"
      tools:ignore="ContentDescription"/>
  </RelativeLayout>
</LinearLayout>
And in the manifest I have tried the attribute:
android:windowSoftInputMode="adjustResize"
Also, I have tried same questions' solutions like:
But didn't work for me.
Does anyone know why it doesn't work?
Thanks in advance!
 
     
     
    