我现在正在使用itext库生成一个PDF文件，我正在尝试附加该PDF文件的视频，但该视频未显示在生成的PDF中。我引用了以下链接来执行此操作，但我的PDF文件中没有任何视频。请给我一些建议。
IText PDF Library : Embedded video, how to show thumbnail and playback controls
http://what-when-how.com/itext-5/integrating-rich-media-part-1-itext-5/
public class MainActivity extends AppCompatActivity {
/**
* The resulting PDF file.
*/
public static final String RESULT = "samplefile.pdf";
/**
* The path to a Flash application.
*/
public static final String RESOURCE = "res/raw/samplefile.swf";
private Button mButton;
private EditText mEditusertext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mEditusertext = (EditText) findViewById(R.id.editText);
mButton = (Button) findViewById(R.id.button);
mButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
createpdf(mEditusertext.getText().toString());
}
});
}
private void createpdf(String s) {
File docsFolder = new File(Environment.getExternalStorageDirectory() + "/MyDocuments");
if (!docsFolder.exists()) {
docsFolder.mkdir();
Log.i(TAG, "Created a new directory for PDF");
}
Document document = new Document();
//for richmedia...
PdfWriter writer = null;
try {
writer = PdfWriter.getInstance(document, new FileOutputStream(Environment.getExternalStorageDirectory() + File.separator + RESULT));
} catch (DocumentException e) {
e.printStackTrace();
} catch (FileNotFoundException e) {
e.printStackTrace();
}
document.open();
// step 4
// we prepare a RichMediaAnnotation
RichMediaAnnotation richMedia = new RichMediaAnnotation(writer, new Rectangle(36, 400, 559, 806));
// we embed the swf file
PdfFileSpecification fs
= null;
try {
fs = PdfFileSpecification.fileEmbedded(writer, RESOURCE, "samplefile.swf", null);
} catch (IOException e) {
e.printStackTrace();
}
// we declare the swf file as an asset
PdfIndirectReference asset = null;
try {
asset = richMedia.addAsset("samplefile.swf", fs);
} catch (IOException e) {
e.printStackTrace();
}
// we create a configuration
RichMediaConfiguration configuration = new RichMediaConfiguration(PdfName.FLASH);
RichMediaInstance instance = new RichMediaInstance(PdfName.FLASH);
RichMediaParams flashVars = new RichMediaParams();
String vars = new String("&day=2011-10-13");
flashVars.setFlashVars(vars);
instance.setParams(flashVars);
instance.setAsset(asset);
configuration.addInstance(instance);
// we add the configuration to the annotation
PdfIndirectReference configurationRef = null;
try {
configurationRef = richMedia.addConfiguration(configuration);
} catch (IOException e) {
e.printStackTrace();
}
// activation of the rich media
RichMediaActivation activation = new RichMediaActivation();
activation.setConfiguration(configurationRef);
richMedia.setActivation(activation);
// we add the annotation
PdfAnnotation richMediaAnnotation = null;
try {
richMediaAnnotation = richMedia.createAnnotation();
} catch (IOException e) {
e.printStackTrace();
}
richMediaAnnotation.setFlags(PdfAnnotation.FLAGS_PRINT);
writer.addAnnotation(richMediaAnnotation);
// step 5
document.close();
}
}