Aspose.Slides for Android via Java 22.11 Release Notes
| Key | Summary | Category |
|---|---|---|
| SLIDESANDROID-344 | Use Aspose.Slides for Java 22.11 features | Enhancement |
Public API Changes
Convert PowerPoint Presentation to video with animations and transitions
We’ve added a new feature: PowerPoint presentation-to-video conversion. This feature includes:
- animation of transitions between slides
- shape animation
- text animation
Aspose.Slides can now play presentations and generate a set of frames for an entire animation with a specific frame per second (FPS). Those frames can then be used to create a video through tools like FFmpeg.
This Java code demonstrates a presentation to video export operation with frames set at 30FPS:
final int FPS = 30;
Presentation presentation = new Presentation("animated.pptx");
try {
PresentationAnimationsGenerator animationsGenerator = new PresentationAnimationsGenerator(presentation);
try {
PresentationPlayer player = new PresentationPlayer(animationsGenerator, FPS);
try {
player.setFrameTick(new PresentationPlayer.FrameTick() {
public void invoke(PresentationPlayer sender, FrameTickEventArgs args) {
FileOutputStream fos = null;
try {
fos = new FileOutputStream("frame_" + sender.getFrameIndex() + ".png");
args.getFrame().compress(android.graphics.Bitmap.CompressFormat.PNG, 100, fos);
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
}
}
}
}
});
animationsGenerator.run(presentation.getSlides());
} finally {
if (player != null) player.dispose();
}
} finally {
if (animationsGenerator != null) animationsGenerator.dispose();
}
} finally {
if (presentation != null) presentation.dispose();
}
The PresentationAnimationsGenerator class is a source that sequentially generates individual animation effects, which are then played back using the PresentationPlayer class. A FrameTick event is generated for each frame to allow you to save the current frame to disk or write the frame to a video stream.
PDF 1.7 and PDF 1.6 export support added
We implemented support for PDF export to formats 1.6 and 1.7:
- PdfCompliance.Pdf16
- PdfCompliance.Pdf17
This Java code demonstrates an export to PDF 1.7 operation:
Presentation presentation = new Presentation("pres.pptx");
try {
PdfOptions pdfOptions = new PdfOptions();
pdfOptions.setCompliance(PdfCompliance.Pdf17);
presentation.save("pres.pdf", SaveFormat.Pdf, pdfOptions);
} finally {
if (presentation != null) presentation.dispose();
}
PDF A2a, A2b, A2u, A3a and A3b compliance levels export support added
We implemented support for PDF export operations with A2a, A2b, A2u, A3a and A3b compliance levels:
- PdfCompliance.PdfA2a
- PdfCompliance.PdfA2b
- PdfCompliance.PdfA2u
- PdfCompliance.PdfA3a
- PdfCompliance.PdfA3b
This Java code demonstrates an operation where a PDF is saved based on the PdfA2a compliance level:
Presentation presentation = new Presentation("pres.pptx");
try {
PdfOptions pdfOptions = new PdfOptions();
pdfOptions.setCompliance(PdfCompliance.PdfA2a);
presentation.save("pres.pdf", SaveFormat.Pdf, pdfOptions);
} finally {
if (presentation != null) presentation.dispose();
}
Hyperlink sound management support added
getSound and setSound methods, have been added to the Hyperlink class to represent the played sound of an hyperlink.
Presentation presentation = new Presentation("demo.pptx");
try {
ISlide slide = presentation.getSlides().get_Item(0);
// Gets the first shape hyperlink
IHyperlink link = presentation.getSlides().get_Item(0).getShapes().get_Item(0).getHyperlinkClick();
if (link.getSound() != null)
{
// Extracts the hyperlink sound in byte array
byte[] audioData = link.getSound().getBinaryData();
}
} finally {
if (presentation != null) presentation.dispose();
}
OLE object frame relative path to a linked file support added
We implemented a new ability that allows you to access and change the relative file path data for OleObjectFrame using the new getLinkPathRelative method.
Presentation presentation = new Presentation("demo.ppt");
try {
IOleObjectFrame oleFrame = (IOleObjectFrame)presentation.getSlides().get_Item(0).getShapes().get_Item(0);
if (oleFrame != null)
{
System.out.println("The relative path: " + oleFrame.getLinkPathRelative());
}
} finally {
if (presentation != null) presentation.dispose();
}
StopPreviousSound property added for animation effects
getStopPreviousSound and getStopPreviousSound methods of the Effect class specifies whether the animation effect stops the previous sound.
Presentation presentation = new Presentation("demo.pptx");
try {
// Gets the first effect of the first slide.
IEffect firstSlideEffect = presentation.getSlides().get_Item(0).getTimeline().getMainSequence().get_Item(0);
// Gets the first effect of the second slide.
IEffect secondSlideEffect = presentation.getSlides().get_Item(1).getTimeline().getMainSequence().get_Item(0);
if (firstSlideEffect.getSound() != null)
{
// Changes the second effect Enhancements/Sound to "Stop Previous Sound"
secondSlideEffect.setStopPreviousSound(true);
}
} finally {
if (presentation != null) presentation.dispose();
}
Get base placeholder support added
The Shape.getBasePlaceholder method has been added. It returns a basic placeholder shape (shape from the layout and/or master slide that the current shape is inherited from).
This Java code shows you how to get all (master/layout/slide) animated effects of a placeholder shape:
Presentation pres = new Presentation("sample.pptx");
try {
ISlide slide = pres.getSlides().get_Item(0);
IShape shape = slide.getShapes().get_Item(0);
IEffect[] shapeEffects = slide.getLayoutSlide().getTimeline().getMainSequence().getEffectsByShape(shape);
IShape layoutShape = shape.getBasePlaceholder();
IEffect[] layoutShapeEffects = slide.getLayoutSlide().getTimeline().getMainSequence().getEffectsByShape(layoutShape);
IShape masterShape = layoutShape.getBasePlaceholder();
IEffect[] masterShapeEffects = slide.getLayoutSlide().getMasterSlide().getTimeline().getMainSequence().getEffectsByShape(masterShape);
} finally {
if (pres != null) pres.dispose();
}