Android uses itext.jar to generate Chinese pdf files

Please download the itext jar package first, and import it into the android project

This article uses itextg-5.5.10.jar, paste the code directly

Document doc = new Document();

String path = Environment.getExternalStorageDirectory() + File.separator +"PDF" + File.separator;

File dir = new File(path);
if (!dir.exists()) {
    dir.mkdirs();
}

FileOutputStream fos = new FileOutputStream(new File(path +"test.pdf"));

PdfWriter.getInstance(doc, fos);

doc.open ();

1. If it is only a simple line of text display, follow the method below

//Add a main title and center it
Paragraph mainTitleP = new Paragraph("mainTitle", setChineseFont(16));
mainTitleP.setAlignment(Paragraph.ALIGN_CENTER);

//Add a subtitle and center it
Paragraph subTitleP = new Paragraph(subTitle, setChineseFont(14));
subTitleP.setAlignment(Paragraph.ALIGN_CENTER);

// add a line of simple memory
Paragraph p = new Paragraph("Simple PDF content", setChineseFont(10));

doc.add(mainTitleP);
doc.add(subTitleP);
doc.add(p);

If the content of the PDF document is simply displayed line by line, you can follow the above method, just adjust the font size

Take a look at the setChineseFont() method used above,

//The parameter passed in by fontSize is the text size of the displayed content, which can be set according to the needs

   public static Font setChineseFont(int fontSize) {
        BaseFont bf = null;
        Font fontChinese = null;
        try {

            bf = BaseFont.createFont("/assets/STSONG.TTF", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);

            fontChinese = new Font(bf, fontSize, Font.NORMAL);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return fontChinese;
    }

The above method needs to pay attention to the Chinese font file STSONG.TTF. This file is obtained from the Windows system and put into the assets of the project. I don’t care about the copyright issues involved in this font. We are only using it for demo testing. Follow-up Change the available Chinese font files by yourself.

2. If you use a table in the document, you can refer to the method

//For example, create a table with 3 columns, the number of rows is automatically generated according to the number of inserted cells

PdfPTable table = new PdfPTable(3);

//Set the width of each column separately

table.setTotalWidth(new float[]{300, 220, 240});

//Insert 6 cell contents

PdfPCell cellTable1 = new PdfPCell(new Paragraph("cell1", setChineseFont(12)));
tableInhale.addCell(cellTable1);

PdfPCell cellTable2 = new PdfPCell(new Paragraph("cell2", setChineseFont(12))); cellTable1.addCell(cellTable2 );

PdfPCell cellTable3 = new PdfPCell(new Paragraph("cell3", setChineseFont(12))); cellTable1.addCell(cellTable3 );

PdfPCell cellTable4 = new PdfPCell(new Paragraph("cell4", setChineseFont(12))); cellTable1.addCell(cellTable4 );

PdfPCell cellTable5 = new PdfPCell(new Paragraph("cell5", setChineseFont(12))); cellTable1.addCell(cellTable5 );

PdfPCell cellTable6 = new PdfPCell(new Paragraph("cell6", setChineseFont(12))); cellTable1.addCell(cellTable6 );

doc.add(cellTable1);

If a cell does not display any content, it is also necessary to insert a blank ""

If a cell does not need a border, it can be set (there is a border by default)

cell.setBorder(Rectangle.NO_BORDER);

If you need to merge the 2 rows of cells in the first column into one cell, you can set

cell1.setRowspan(2);

There are also some centering properties, see the requirements settings

cell.setHorizontalAlignment(Element.ALIGN_CENTER);
cell.setVerticalAlignment(Element.ALIGN_MIDDLE);

3. Finally add

doc.close();
fos.flush();
fos.close();

The above code can generate a simple PDF file