void setPage(PdfRenderer.Page page) { if (bitmap==null) { int height=2000; int width=height * page.getWidth() / page.getHeight(); bitmap=Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); } bitmap.eraseColor(0xFFFFFFFF); page.render(bitmap, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY); iv.resetScaleAndCenter(); iv.setImage(ImageSource.cachedBitmap(bitmap)); } }