how can i get cart summary button after "update shopping cart" button ??
This is mobile view, don't worry about desktop view.
Yes, i get the solution. Override checkout_cart_index.xml in your current theme and find below container and add code after this container.
<container name="checkout.cart.items" as="with-items">
----------
----------
<container name="checkout.cart.container" htmlTag="div" htmlClass="cart-container" before="-">
------------
</container>
<!-- Add custom Checkout button after cart container for only mobile view-->
<container name="custom.checkout.button" htmlTag="div" htmlClass="mobile-checkout-button">
<block class="Magento\Checkout\Block\Cart" name="checkout.cart.custom.bottom" template="cart/methods.phtml">
<container name="checkout.cart.methods.custom" as="methods" label="Payment Methods After Checkout Button">
<block class="Magento\Checkout\Block\Onepage\Link" name="checkout.cart.methods.onepage.custom.bottom" template="onepage/link.phtml" />
<block class="Magento\Checkout\Block\QuoteShortcutButtons" name="checkout.cart.shortcut.custom.buttons" />
</container>
</block>
</container>
<!--End-->
Hope so it helps you.