How to Add Web Parts to the Page Programmatically?

SPWeb web = properties.Feature.Parent as SPWeb;   
//Create the SPLimitedWebPart Manager to Add web parts
SPLimitedWebPartManager WebPartMgr = web.GetLimitedWebPartManager("Home.aspx", PersonalizationScope.Shared);

//Add Project Matter Title CEWP
ContentEditorWebPart ProjectDetailsTitleCEWP = new ContentEditorWebPart();

//Set the Properties of the CEWP
ProjectDetailsTitleCEWP.Title = "Project Matters Title";
ProjectDetailsTitleCEWP.ChromeType = PartChromeType.None;

//Create an XmlElement to hold the value of the Content property.
XmlElement ProjectDetailsTitle = new XmlDocument().CreateElement("content");
ProjectDetailsTitle.InnerText = "<img style='BORDER: 0px' src='/_layouts/images/crescent/Project-details.jpg' align='middle'><span style='color: black; font-size: medium; vertical-align: middle'>Project</span><span style='COLOR: #971a1e; font-size: medium; vertical-align: middle'>Details</span><hr style='color: navy;' size='1' />";
ProjectDetailsTitleCEWP.Content = ProjectDetailsTitle;

//Add the CEWP to BODY zone
WebPartMgr.AddWebPart(ProjectDetailsTitleCEWP, "Body", 1);
WebPartMgr.SaveChanges(ProjectDetailsTitleCEWP);

PageViewerWebPart pvwp = new PageViewerWebPart(); 
pvwp.Title = "Project Accounting";
pvwp.ChromeType = PartChromeType.None;
pvwp.ID = "PageViewer";
pvwp.Height = "600px";
pvwp.ContentLink = "https://www.Crescent.com/Projects.com";
ProjectAccountingWebPartMgr.AddWebPart(pvwp, "Body", 0);
ProjectAccountingWebPartMgr.SaveChanges(pvwp);

//Get the object of the list of which we are creatin the list viewer webpart
SPList ProjectDocList = web.Lists["Project Documents"];
ListViewWebPart oProjectDocsListViewWP = new ListViewWebPart();
//Set the properties of the webpart
oProjectDocsListViewWP.ChromeType = PartChromeType.None;
oProjectDocsListViewWP.Title = "Project Documents";
oProjectDocsListViewWP.ListName = ProjectDocList.ID.ToString("B").ToUpper();
oProjectDocsListViewWP.ViewGuid = ProjectDocList.DefaultView.ID.ToString("B").ToUpper();

//Define the zone in which webparts need to be added
WebPartMgr.AddWebPart(oProjectDocsListViewWP, "Left", 3);

//Method to Get the custom web part
public static System.Web.UI.WebControls.WebParts.WebPart GetWebPart(SPWeb web, string webPartName)
{
	var query = new SPQuery();
	query.Query = String.Format("<Where><Eq><FieldRef Name='FileLeafRef'/><Value Type='File'>{0}</Value></Eq></Where>",	webPartName);

	SPList webPartGallery;
	if (web.IsRootWeb)
	{
		webPartGallery = web.GetCatalog(SPListTemplateType.WebPartCatalog);
	}
	else
	{
		webPartGallery = web.ParentWeb.GetCatalog(SPListTemplateType.WebPartCatalog);
	}
	var webParts = webPartGallery.GetItems(query);
	var typeName = webParts[0].GetFormattedValue("WebPartTypeName");
	var assemblyName = webParts[0].GetFormattedValue("WebPartAssembly");
	var webPartHandle = Activator.CreateInstance(assemblyName, typeName);

	System.Web.UI.WebControls.WebParts.WebPart webPart =(System.Web.UI.WebControls.WebParts.WebPart)webPartHandle.Unwrap();
	return webPart;
}