android - Exporting Multiple Images or Exporting Images to PDF causes OutOfMemoryException -


i have no clue exception, since try discard each bitmap they've been used , flush stream write these images. use method save bitmaps pdf, idea same exporting number of bitmaps in row.

i use itextpdf (http://mvnrepository.com/artifact/com.itextpdf/itextpdf)

// list of pages containing draw objects can converted bitmaps arraylist<page> pages;  rectangle pagesize = new rectangle(width, height); document document = new document(pagesize, 0, 0, 0, 0);  pdfwriter.getinstance(document, new fileoutputstream(savedirectory));  document.open();  bytearrayoutputstream stream = new bytearrayoutputstream();  (int i=0; < pages; i++) {      // list of objects, draws them on bitmap canvas , returns bitmap.     bitmap b = drawengine.draw(width, height, originalwidth, originalheight, pages.get(i).getdrawobjects());      stream.flush();     stream.reset();      b.compress(compressformat.png, 100, stream);     b.recycle();      byte[] byteimage = stream.tobytearray();     image image = image.getinstance(byteimage);     document.add(image);      // update notification      system.gc();  }  document.close();


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