Show read more content like Google player store : demo https://www.youtube.com/watch?v=JpqOkdBfjdg

GGPlayReadMoreActivity

  public class GGPlayReadMoreActivity extends ActionBarActivity implements View.OnClickListener {

    private ActionBar actionBar;

    private ScrollView firstPage;
    private TextView tvTop;
    private TextView tvMid;
    private TextView tvBottom;
    private View vContent;

    private float SCREEN_HEIGHT;
    private boolean mIsOpenedMorePanel;

    private void setHomeAsUp(boolean isHomeAsUp) {
        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(isHomeAsUp);
        }
    }

    private void setActionbarColor(int colorResId) {
        if (actionBar != null) {
            actionBar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(colorResId)));
        }
    }

    private void setHomeAsUpIcon(int resId) {
        if (actionBar != null) {
            actionBar.setHomeAsUpIndicator(resId);
        }
    }

    private void setOpenedMorePanel(boolean isOpenedMorePanel) {
        mIsOpenedMorePanel = isOpenedMorePanel;

        if (isOpenedMorePanel) {
            setActionbarColor(R.color.blue);
        } else {
            setActionbarColor(R.color.green);
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_ggplay);

        actionBar = getSupportActionBar();
        setActionbarColor(R.color.green);
        setHomeAsUp(true);

        Display display = getWindowManager().getDefaultDisplay();
        Point size = new Point();
        display.getSize(size);
        SCREEN_HEIGHT = size.y;

        vContent = (View) findViewById(R.id.view_content);
        vContent.setVisibility(View.GONE);

        firstPage = (ScrollView) findViewById(R.id.first_page);
        tvTop = (TextView) findViewById(R.id.tv_top);
        tvMid = (TextView) findViewById(R.id.tv_mid);
        tvBottom = (TextView) findViewById(R.id.tvt_bottom);

        tvMid.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        doOpenMorePanel();
    }

    @Override
    public boolean onSupportNavigateUp() {
        onBackPressed();
        return super.onSupportNavigateUp();
    }

    @Override
    public void onBackPressed() {
        if (mIsOpenedMorePanel) {
            doCloseMorePanel();
        } else {
            super.onBackPressed();
        }
    }

    private void doOpenMorePanel() {
        setHomeAsUpIcon(R.drawable.abc_ic_clear_mtrl_alpha);
        setOpenedMorePanel(true);

        ObjectAnimator fadeOut = ObjectAnimator.ofFloat(tvMid, View.ALPHA, 1.0f, 0.0f);
        fadeOut.setDuration(100);
        fadeOut.start();

        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                ObjectAnimator goTop = ObjectAnimator.ofFloat(tvTop, View.TRANSLATION_Y, 0, -1 * tvTop.getHeight());
                goTop.setDuration(400);
                goTop.start();

                ObjectAnimator goBottom = ObjectAnimator.ofFloat(tvBottom, View.TRANSLATION_Y, 0, SCREEN_HEIGHT);
                goBottom.setDuration(400);
                goBottom.start();
            }
        }, 200);

        vContent.setVisibility(View.VISIBLE);
        ObjectAnimator slideIn = ObjectAnimator.ofFloat(vContent, View.TRANSLATION_Y, SCREEN_HEIGHT, 0);
        slideIn.setDuration(400);
        slideIn.start();

        ObjectAnimator fadeIn = ObjectAnimator.ofFloat(vContent, View.ALPHA, 0.0f, 1.0f);
        fadeIn.setDuration(800);
        fadeIn.start();
        fadeIn.addListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animation) {

            }

            @Override
            public void onAnimationEnd(Animator animation) {
                if (mIsOpenedMorePanel) {
                    firstPage.setVisibility(View.GONE);
                }
            }

            @Override
            public void onAnimationCancel(Animator animation) {

            }

            @Override
            public void onAnimationRepeat(Animator animation) {

            }
        });
    }

    private void doCloseMorePanel() {
        setHomeAsUpIcon(R.drawable.abc_ic_ab_back_mtrl_am_alpha);
        setOpenedMorePanel(false);

        vContent.setVisibility(View.GONE);
        firstPage.setVisibility(View.VISIBLE);
        ObjectAnimator fadeIn = ObjectAnimator.ofFloat(tvMid, View.ALPHA, 0.0f, 1.0f);
        fadeIn.setDuration(100);
        fadeIn.start();

        ObjectAnimator goTop = ObjectAnimator.ofFloat(tvTop, View.TRANSLATION_Y, -1 * tvTop.getHeight(), 0);
        goTop.setDuration(400);
        goTop.start();

        ObjectAnimator goBottom = ObjectAnimator.ofFloat(tvBottom, View.TRANSLATION_Y, SCREEN_HEIGHT, 0);
        goBottom.setDuration(400);
        goBottom.start();
    }
}

layout_ggplay

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/root"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <include layout="@layout/layout_more" />

    <ScrollView
        android:id="@+id/first_page"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

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

            <TextView
                android:id="@+id/tv_top"
                android:text="@string/hello_world"
                android:background="@color/red"
                android:gravity="center"
                android:layout_width="match_parent"
                android:layout_height="@dimen/content_height" />

            <TextView
                android:id="@+id/tv_mid"
                android:text="@string/readmore"
                android:gravity="center"
                android:layout_width="match_parent"
                android:layout_height="@dimen/content_height_small" />

            <TextView
                android:id="@+id/tvt_bottom"
                android:text="@string/hello_world"
                android:background="@color/blue"
                android:gravity="center"
                android:layout_width="match_parent"
                android:layout_height="@dimen/content_height" />
        </LinearLayout>
    </ScrollView>
</RelativeLayout>

layout_more

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/view_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="@dimen/activity_horizontal_margin"
        android:orientation="vertical">

        <TextView
            android:text="@string/readmore"
            android:gravity="center"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:layout_margin="10dp"
            android:background="@color/blue" />

        <TextView
            android:text="@string/text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:layout_margin="10dp"
            android:background="@color/blue" />

        <TextView
            android:text="@string/text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:layout_margin="10dp"
            android:background="@color/blue" />

        <TextView
            android:text="@string/text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />
    </LinearLayout>

</ScrollView>