如何在演示文稿中添加页眉和页脚

新发布了Aspose.Slides for Java API，现在这个单一产品支持从头生成 PowerPoint 文档和编辑现有文档的功能。

对旧代码的支持

为了使用使用 Aspose.Slides for Java 13.x 之前版本开发的旧代码，您需要对代码进行一些小的修改，代码将按以前的方式工作。所有在旧版 Aspose.Slides for Java 的 Aspose.Slide 和 Aspose.Slides.Pptx 命名空间下存在的类现在已合并到单一的 Aspose.Slides 命名空间中。请查看以下简单的代码片段，了解如何在旧版 Aspose.Slides API 中添加演示文稿的页眉和页脚，并按照描述如何迁移到新的合并 API 的步骤进行操作。

旧版 Aspose.Slides for Java 方法

PresentationEx sourcePres = new PresentationEx();
 
//Setting Header Footer visibility properties
sourcePres.setUpdateSlideNumberFields(true);
 
//Update the Date Time Fields
sourcePres.setUpdateDateTimeFields(true);
 
//Show date time placeholder
sourcePres.getHeaderFooterManager().isDateTimeVisible(true);
 
//Show the footer place holder
sourcePres.getHeaderFooterManager().isFooterVisible(true);
 
//Show Slide Number
sourcePres.getHeaderFooterManager().isSlideNumberVisible(true);
 
//Set the  header footer visibility on Title Slide
sourcePres.getHeaderFooterManager().setVisibilityOnTitleSlide(true);
             
//Write the presentation to the disk
sourcePres.save("NewSource.pptx",SaveFormat.Pptx);

//Create the presentation
Presentation pres = new Presentation();
 
//Get first slide
Slide sld = pres.getSlideByPosition(0);
 
//Access the Header / Footer of the slide
HeaderFooter hf = sld.getHeaderFooter();
 
//Set Page Number Visibility
hf.setPageNumberVisible(true);
 
//Set Footer Visibility
hf.setFooterVisible(true);
 
//Set Header Visibility
hf.setHeaderVisible(true);
 
//Set Date Time Visibility
hf.setDateTimeVisible(true);
 
//Set Date Time format
hf.setDateTimeFormat(DateTimeFormat.DateTime_dMMMMyyyy);
 
//Set Header Text
hf.setHeaderText("Header Text");
 
//Set Footer Text
hf.setFooterText("Footer Text");
 
//Write the presentation to the disk
pres.save("HeadFoot.ppt",SaveFormat.Ppt);

新版本 Aspose.Slides for Java 13.x 方法

Presentation sourcePres = new Presentation();
 
//Setting Header Footer visibility properties
sourcePres.UpdateSlideNumberFields = true;
 
//Update the Date Time Fields
sourcePres.UpdateDateTimeFields = true;
 
//Show date time placeholder
sourcePres.HeaderFooterManager.IsDateTimeVisible = true;
 
//Show the footer place holder
sourcePres.HeaderFooterManager.IsFooterVisible = true;
 
//Show Slide Number
sourcePres.HeaderFooterManager.IsSlideNumberVisible = true;
 
//Set the  header footer visibility on Title Slide
sourcePres.HeaderFooterManager.SetVisibilityOnTitleSlide(true);
 
//Write the presentation to the disk
sourcePres.save("NewSource.pptx",SaveFormat.Pptx);