Blank page displayed while using MVC design

Hi All,

I am a beginner to SAPUI5 and I am just trying to experience themes.  I have created a project using MVC and in the view.js file, I have written the following code.

createContent : function(oController)

{

var oMatrix = new sap.ui.commons.layout.MatrixLayout({id : "matrix1",

     layoutFixed : false,

                                                      });

var oBut_golden = new sap.ui.commons.Button();

oBut_golden.setText("Golden Reflection");

oBut_golden.setWidth(400);

oBut_golden.attachPress(oController.golden);

var oBut_blue = new sap.ui.commons.Button();

oBut_blue.setText("BlueCrystal");

oBut_blue.attachPress(oController.blue);

var oBut_plat = new sap.ui.commons.Button();

oBut_plat.setText("Platinum");

oBut_plat.attachPress(oController.platinum);

var oBut_hcb = new sap.ui.commons.Button();

oBut_hcb.setText("SAP_HCB");

oBut_hcb.attachPress(oController.hcb);

oMatrix.createRow(oBut_golden,oBut_platinum,oBut_blue,oBut_hcb);

// oMatrix.placeAt('content');

return oMatrix;

}

I have not added anything in the index file as nothing need to be used with 'placeAt' method in the view as it is MVC.

But I am getting a blank page while executing the index file. 

});

Appreciate your valuable inputs.

Thanks & Regards

Sunil

createContent : function(oController) { var oMatrix = new sap.ui.commons.layout.MatrixLayout({id : "matrix1",     layoutFixed : false,                                                      }); var oBut_golden = new sap.ui.commons.Button(); oBut_golden.setText("Golden Reflection"); oBut_golden.setWidth(400); oBut_golden.attachPress(oController.golden); var oBut_blue = new sap.ui.commons.Button(); oBut_blue.setText("BlueCrystal"); oBut_blue.attachPress(oController.blue); var oBut_plat = new sap.ui.commons.Button(); oBut_plat.setText("Platinum"); oBut_plat.attachPress(oController.platinum); var oBut_hcb = new sap.ui.commons.Button(); oBut_hcb.setText("SAP_HCB"); oBut_hcb.attachPress(oController.hcb); oMatrix.createRow(oBut_golden,oBut_platinum,oBut_blue,oBut_hcb);// oMatrix.placeAt('content'); return oMatrix;   }
});