在 Android 中创建 PDF

Question

我们可以在android中创建PDF文件吗？

• 我已经尝试了所有的 Google 搜索。
• 还看到了更多的例子。

• 我已经试过了，

  File f=new File("/data/data/com.pdf/test1.pdf");  
  Log.d("test", "created");  
  Document document = new Document();  
  PdfWriter.getInstance(document, new FileOutputStream(f));  
  document.open();            
  document.addTitle("My first PDF");
  document.addSubject("Using iText");
  document.addKeywords("Java, PDF, iText");  
  document.addAuthor("Lars Vogel");
  document.addCreator("Lars Vogel");
  Paragraph paragraph = new Paragraph("This is left aligned text with indentation");
  paragraph.setAlignment(Element.ALIGN_LEFT);
  paragraph.setIndentationLeft(50);
  document.add(paragraph);
  document.close();
  Toast.makeText(this, "Pdf Created", Toast.LENGTH_LONG).show();  
  

但这会产生错误，

08-11 16:53:38.446: E/AndroidRuntime(2484): FATAL EXCEPTION: main
08-11 16:53:38.446: E/AndroidRuntime(2484): java.lang.NoClassDefFoundError:          com.itextpdf.text.Document
08-11 16:53:38.446: E/AndroidRuntime(2484):     at com.pdf.PDFReaderActivity.onCreate(PDFReaderActivity.java:28)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at android.app.Activity.performCreate(Activity.java:4465)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at android.app.ActivityThread.access$600(ActivityThread.java:123)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at android.os.Handler.dispatchMessage(Handler.java:99)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at android.os.Looper.loop(Looper.java:137)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at android.app.ActivityThread.main(ActivityThread.java:4424)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at java.lang.reflect.Method.invokeNative(Native Method)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at java.lang.reflect.Method.invoke(Method.java:511)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at com .android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
08-11 16:53:38.446: E/AndroidRuntime(2484):     at dalvik.system.NativeStart.main(Native Method)  

Answer 1

我猜是包含 PdfWriter 类的 jar 没有导出到 apk 文件中。

查看here 寻求解决方案。