使用java编写一段处理pptx或者是ppt文件的Keyframe fractions must be increasing: 1.0
时间: 2023-11-27 08:52:46 浏览: 127
这个错误通常出现在PPT或者PPTX文件中的动画效果中,意思是动画帧的时间分数必须是递增的。下面是一个处理PPTX文件中动画效果的Java代码示例,它会检查并修复此错误:
```java
import java.io.*;
import org.apache.poi.xslf.usermodel.*;
public class PptxAnimationFixer {
public static void main(String[] args) throws Exception {
// Load the PPTX file
XMLSlideShow ppt = new XMLSlideShow(new FileInputStream("input.pptx"));
// Loop through each slide
for (XSLFSlide slide : ppt.getSlides()) {
// Loop through each shape on the slide
for (XSLFShape shape : slide.getShapes()) {
// Check if the shape has animations
if (shape instanceof XSLFTextShape) {
XSLFTextShape textShape = (XSLFTextShape) shape;
for (XSLFTextParagraph paragraph : textShape.getTextParagraphs()) {
for (XSLFTextRun run : paragraph.getTextRuns()) {
if (run.getXmlObject().getP().isSetA()) {
CTTLCommonTimeNodeData timeNode = run.getXmlObject().getP().getA().getTn();
if (timeNode != null) {
// Check if the time fraction values are in increasing order
double lastFraction = 0.0;
boolean fractionsChanged = false;
for (CTTLTimeVariant timeVariant : timeNode.getTavList()) {
if (timeVariant.getV().doubleValue() <= lastFraction) {
// If the fractions are not in increasing order, fix them
timeVariant.setV(lastFraction + 0.01);
fractionsChanged = true;
}
lastFraction = timeVariant.getV().doubleValue();
}
// If we changed any of the fractions, save the changes to the PPTX file
if (fractionsChanged) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ppt.write(baos);
ppt = new XMLSlideShow(new ByteArrayInputStream(baos.toByteArray()));
}
}
}
}
}
}
}
}
// Save the fixed PPTX file
FileOutputStream out = new FileOutputStream("output.pptx");
ppt.write(out);
out.close();
}
}
```
这段代码使用了Apache POI库来读取和修改PPTX文件中的动画效果。它首先遍历每个幻灯片,然后检查每个形状是否有动画效果。如果一个形状包含文本,那么它会检查每个文本段落和文本运行中的动画效果。如果一个动画效果的时间分数不是递增的,那么它会将它们调整为递增的值(增加0.01),然后保存修改并继续处理下一个形状。最后,它将修改后的PPTX文件保存到输出文件中。
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