我想将recyclerView列表添加到itext PDF文档中, recyclerview是根据用户输入创建的,我不知道用户将添加多少项目, 并且recyclerView的每一项都包含很多文本。
我该怎么做?
无论用户添加什么项目,它都会被添加到一个列表中,然后该列表填充recyclerView。因此,您可以轻松地迭代列表,并为列表中的每个元素添加 pdf 中的详细信息。下面是一个示例,您可以在这里找到完整的代码。
private void createPdf(Order order) throws FileNotFoundException, DocumentException {
File docsFolder = new File(Environment.getExternalStorageDirectory() + "/Documents");
if (!docsFolder.exists()) {
docsFolder.mkdir();
}
String pdfName = order.getOrderId() + "ST.pdf";
// This is the list of product items, that populates the recyclerView
List<ProductItem> items = order.getItemsList();
File pdfFile = new File(docsFolder.getAbsolutePath(), pdfName);
OutputStream output = new FileOutputStream(pdfFile);
Document document = new Document(PageSize.A4);
// We create a table to store different details of each product
PdfPTable table = new PdfPTable(new float[]{3, 5, 3, 3});
// This is some formatting done to make it look good
table.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);
table.getDefaultCell().setFixedHeight(28);
table.setTotalWidth(PageSize.A4.getWidth());
table.setWidthPercentage(100);
table.getDefaultCell().setVerticalAlignment(Element.ALIGN_MIDDLE);
// We add the headers for each column of the table
table.addCell("Product Id");
table.addCell("Name");
table.addCell("Quantity");
table.addCell("Price");
table.setHeaderRows(1);
PdfPCell[] cells = table.getRow(0).getCells();
for (PdfPCell cell : cells) {
cell.setBackgroundColor(BaseColor.LIGHT_GRAY);
}
// Here we iterate over the list, and for every product in the list we add a row in the table with details of the product.
for (ProductItem item : items) {
table.addCell(String.valueOf(item.getProductId()));
table.addCell(String.valueOf(item.getProductName()));
int quantity = item.getProductQuantity();
table.addCell(String.valueOf(quantity));
table.addCell(String.valueOf(item.getProductPrice() * quantity));
}
// Now we add the table to the document
PdfWriter.getInstance(document, output);
document.open();
document.add(table);
document.close();
}