Admin grid container not loading

Question

First of all I'm trying to load grid container and show container heading. My block file is working fine. Container path is Super->Awesome->Block->Adminhtml->Awesome.php which contains

<?php
class Super_Awesome_Block_Adminhtml_Awesome extends Mage_Adminhtml_Block_Widget_Grid_Container
{
    public function __construct()
    {
        $this->_blockGroup = 'super_awesome';
        $this->_controller = 'adminhtml_awesome';
        $this->_headerText = Mage::helper('super_awesome')->__('Manage');
        parent::__construct();
    }

}

layout file super_awesome.xml

<?xml version="1.0"?>
<layout>
    <adminhtml_example_index>
        <reference name="content">
            <block type="super_awesome/adminhtml_awesome" name="super_awesome"></block>
        </reference>
    </adminhtml_example_index>
</layout>

If I echo something inside public function __construct(), it's showing content but on adding proper __contruct() method as above it's showing a blank page. Do I need to add internal block(Grid.php) also, then my container text will appear? Container block Awesome.php should be changed to Grid.php?

Config.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Super_Awesome>
            <version>0.1.0</version>
        </Super_Awesome>
    </modules>
    <admin>
        <routers>
            <adminhtml>
                <args>
                    <modules>
                        <super_awesome before="Mage_Adminhtml">Super_Awesome</super_awesome>
                    </modules>
                </args>
            </adminhtml>
        </routers>
    </admin>
    <adminhtml>
        <layout>
            <updates>
                <super_awesome>
                    <file>super_awesome.xml</file>
                </super_awesome>
            </updates>
        </layout>
    </adminhtml>
    <global>
        <blocks>
            <super_awesome>
                <class>Super_Awesome_Block</class>
            </super_awesome>
        </blocks>
        <helpers>
            <super_awesome>
                <class>Super_Awesome_Helper</class>
            </super_awesome>
        </helpers>
    </global>
</config>

Answer 1

The code you are adding in your __construct method sets the details for the internal block that I think you are missing.

public function __construct()
    {
        $this->_blockGroup = 'super_awesome';
        $this->_controller = 'adminhtml_awesome';
        $this->_headerText = Mage::helper('super_awesome')->__('Manage');
        parent::__construct();
    }

Those settings are used in the parents _prepareLayout() method as below.

protected function _prepareLayout()
{
    $this->setChild( 'grid',
        $this->getLayout()->createBlock( $this->_blockGroup.'/' . $this->_controller . '_grid',
        $this->_controller . '.grid')->setSaveParametersInSession(true) );
    return parent::_prepareLayout();
}

For you this bit of code will end up as

  $this->getLayout()->createBlock('super_awesome/adminhtml_awesome_grid');

Which means you need to create the block Super_Awesome_Block_Adminhtml_Awesome_Grid which should extend Mage_Adminhtml_Block_Widget_Grid.

Mage_Adminhtml_Block_Poll_Grid could be used as an example for this missing grid block.