如何使用 iText 或 android 上的其他库创建 PDF 文件？
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【中文标题】如何使用 iText 或 android 上的其他库创建 PDF 文件？【英文标题】：How to create PDF file using iText or some other library on android? 【发布时间】：2012-01-16 03:10:33 【问题描述】：有没有关于iText for android 的教程？
谢谢
【问题讨论】：
您从什么创建 PDF？我不熟悉iText。
不，我想在 Android 应用程序中使用文本和图像创建 PDF 文件。
【参考方案1】：
这很简单，例如
Here我存储库中的代码（更新链接）
gradle.build
compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.madgag:scpkix-jdk15on:1.47.0.1'
compile 'com.itextpdf:itextpdf:5.0.6'
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:tools="http://schemas.android.com/tools"
android:layout_
android:layout_
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.hackro.itext.MainActivity">
<Button
android:layout_
android:layout_
android:id="@+id/btnwrite"
android:text="PDF"
android:onClick="GeneratePDF"
/>
</RelativeLayout>
MainActivity.java
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import com.itextpdf.text.pdf.BaseFont;
import java.io.File;
public class MainActivity extends Activity
private static final String LOG_TAG = "GeneratePDF";
private BaseFont bfBold;
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
public void GeneratePDF(View view)
// TODO Auto-generated method stub
String filename = "david";
String filecontent = "Contenido";
Metodos fop = new Metodos();
if (fop.write(filename, filecontent))
Toast.makeText(getApplicationContext(),
filename + ".pdf created", Toast.LENGTH_SHORT)
.show();
else
Toast.makeText(getApplicationContext(), "I/O error",
Toast.LENGTH_SHORT).show();
Metodos.java
import android.util.Log;
import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.pdf.PdfPCell;
import com.itextpdf.text.pdf.PdfPTable;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
/**
* Created by hackro on 24/11/15.
*/
public class Metodos
public Boolean write(String fname, String fcontent)
try
String fpath = "/sdcard/" + fname + ".pdf";
File file = new File(fpath);
if (!file.exists())
file.createNewFile();
Font bfBold12 = new Font(Font.FontFamily.TIMES_ROMAN, 12, Font.BOLD, new BaseColor(0, 0, 0));
Font bf12 = new Font(Font.FontFamily.TIMES_ROMAN, 12);
Document document = new Document();
PdfWriter.getInstance(document,
new FileOutputStream(file.getAbsoluteFile()));
document.open();
document.add(new Paragraph("Sigueme en Twitter!"));
document.add(new Paragraph("@DavidHackro"));
document.close();
return true;
catch (IOException e)
e.printStackTrace();
return false;
catch (DocumentException e)
// TODO Auto-generated catch block
e.printStackTrace();
return false;
结果
祝你好运
【讨论】：
iTextpdf v5.0.6 被列为依赖项。我有两个问题。 1. 5.0.6 太老了。坚持使用新版本的新应用程序。 2. 您使用的是 iText Java 而不是 iTextG（Android 端口）。 Android 端口有一些小的修改。仅举几例：排除使用不在 Android API (java.awt) 中的 API 和防止命名空间冲突 (BouncyCastle)。 是的，我正在使用 iTextG 构建第二个示例；) 好吧。首先谢谢你希望我在几个小时前看到你的解决方案。其次我要问itext不是免费的吗？ 我在这里使用 itextg 是我用来创建 pdf 的要点。我添加了水印、图片和使用表gist.github.com/mhd-zulqarnain/ee99c42c4d35dcdcaffd610507f75402【参考方案2】：我创建了一个示例项目，用于使用 itextpdf/itext7 库
从数据中创建 pdf 文件示例项目链接：https://github.com/rheyansh/RPdfGenerator
在您的应用程序 gradle 中添加以下依赖项：
implementation 'com.itextpdf:itext7-core:7.1.12'
重要提示
在 AndroidManifest.xml 中添加 WRITE_EXTERNAL_STORAGE 权限
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
在 AndroidManifest.xml 中添加文件提供程序
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="com.rheyansh.rpdfgenerator.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths" />
</provider>
添加 XML 资源文件夹（参见示例文件夹中的 provider_paths.xml）
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path name="external_files" path="."/>
</paths>
创建 RPdfGenerator 类
import android.content.Context
import android.os.Environment
import com.rheyansh.model.RTransaction
import android.widget.Toast
import com.itextpdf.io.font.constants.StandardFonts
import com.itextpdf.kernel.colors.ColorConstants
import com.itextpdf.kernel.font.PdfFontFactory
import com.itextpdf.kernel.pdf.PdfDocument
import com.itextpdf.kernel.pdf.PdfWriter
import com.itextpdf.kernel.pdf.action.PdfAction
import com.itextpdf.layout.Document
import com.itextpdf.layout.element.Paragraph
import com.itextpdf.layout.element.Table
import com.itextpdf.layout.element.Text
import com.itextpdf.layout.property.TextAlignment
import com.itextpdf.layout.property.UnitValue
import com.rheyansh.lenden.model.RPdfGeneratorModel
import java.io.File
import java.io.FileOutputStream
object RPdfGenerator
private val linkSample = "https://github.com/rheyansh/RPdfGenerator"
fun generatePdf(context: Context, info: RPdfGeneratorModel)
val FILENAME = info.header + ".pdf"
val filePath = getAppPath(context) + FILENAME
if (File(filePath).exists())
File(filePath).delete()
val fOut = FileOutputStream(filePath)
val pdfWriter = PdfWriter(fOut)
// Creating a PdfDocument
val pdfDocument =
PdfDocument(pdfWriter)
val layoutDocument = Document(pdfDocument)
// title
addTitle(layoutDocument, info.header)
//add empty line
addEmptyLine(layoutDocument,1)
//Add sub heading
val appName = "RPdfGenerator"
addSubHeading(layoutDocument, "Generated via: $appName")
addLink(layoutDocument, linkSample)
//add empty line
addEmptyLine(layoutDocument,1)
// customer reference information
addDebitCredit(layoutDocument, info)
//add empty line
addEmptyLine(layoutDocument,1)
//Add sub heading
addSubHeading(layoutDocument, "Transactions")
//Add list
addTable(layoutDocument, info.list)
layoutDocument.close()
Toast.makeText(context, "Pdf saved successfully to location $filePath", Toast.LENGTH_LONG).show()
//FileUtils.openFile(context, File(filePath))
private fun getAppPath(context: Context): String
val dir = File(
Environment.getExternalStorageDirectory()
.toString() + File.separator
+ context.resources.getString(R.string.app_name)
+ File.separator
)
if (!dir.exists())
dir.mkdir()
return dir.path + File.separator
private fun addTable(layoutDocument: Document, items: List<RTransaction>)
val table = Table(
UnitValue.createPointArray(
floatArrayOf(
100f,
180f,
80f,
80f,
80f,
100f
)
)
)
// headers
//table.addCell(Paragraph("S.N.O.").setBold())
table.addCell(Paragraph("Item").setBold())
table.addCell(Paragraph("Customer").setBold())
table.addCell(Paragraph("Qty").setBold())
table.addCell(Paragraph("Price/Q").setBold())
table.addCell(Paragraph("Total").setBold())
table.addCell(Paragraph("Date").setBold())
// items
for (a in items)
// table.addCell(Paragraph(a.SNO.toString() + ""))
table.addCell(Paragraph(a.itemName + ""))
table.addCell(Paragraph(a.custName + ""))
table.addCell(Paragraph(a.quantity.toString() + ""))
table.addCell(Paragraph(a.pricePerUnit.toString() + ""))
table.addCell(Paragraph((a.quantity * a.pricePerUnit).toString() + ""))
table.addCell(Paragraph(a.transactionDateStr + ""))
layoutDocument.add(table)
private fun addEmptyLine(layoutDocument: Document, number: Int)
for (i in 0 until number)
layoutDocument.add(Paragraph(" "))
private fun addDebitCredit(layoutDocument: Document, info: RPdfGeneratorModel)
val table = Table(
UnitValue.createPointArray(
floatArrayOf(
100f,
160f
)
)
)
table.addCell(Paragraph("Total Credit").setBold())
table.addCell(Paragraph(info.totalCredit + ""))
table.addCell(Paragraph("Total Debit").setBold())
table.addCell(Paragraph(info.totalDebit + ""))
table.addCell(Paragraph("Total Profit").setBold())
table.addCell(Paragraph(info.totalProfit + ""))
layoutDocument.add(table)
private fun addSubHeading(layoutDocument: Document, text: String)
layoutDocument.add(
Paragraph(text).setBold()
.setTextAlignment(TextAlignment.CENTER)
)
private fun addLink(layoutDocument: Document, text: String)
val blueText: Text = Text(text)
.setFontColor(ColorConstants.BLUE)
.setFont(PdfFontFactory.createFont(StandardFonts.HELVETICA_BOLD))
layoutDocument.add(
Paragraph(blueText)
.setAction(PdfAction.createURI(text))
.setTextAlignment(TextAlignment.CENTER)
.setUnderline()
.setItalic()
)
private fun addTitle(layoutDocument: Document, text: String)
layoutDocument.add(
Paragraph(text).setBold().setUnderline()
.setTextAlignment(TextAlignment.CENTER)
)
RPdfGeneratorModel
class RPdfGeneratorModel(list: List<RTransaction>, header: String)
var list = emptyList<RTransaction>()
var header = ""
var totalCredit = ""
var totalDebit = ""
var totalProfit = ""
init
this.list = list
this.header = header
calculateTotal(list)
private fun calculateTotal(items: List<RTransaction>)
val totalPlus = items.map
if (it.transType == RTransactionType.plus)
it.totalPrice
else 0.0
.sum()
val totalMinus = items.map
if (it.transType == RTransactionType.minus)
it.totalPrice
else 0.0
.sum()
val final = totalPlus - totalMinus
totalDebit = "-" + totalMinus.toString()
totalCredit = totalPlus.toString()
totalProfit = final.toString()
RTransaction 模型
enum class RTransactionType plus, minus
class RTransaction
var itemName: String = ""
var custName: String = ""
var transType: RTransactionType = RTransactionType.plus
var pricePerUnit: Double = 0.0
var quantity: Int = 0
var totalPrice: Double = 0.0
var transactionDateStr: String = ""
constructor()
在您的活动类中编写以下函数以创建虚拟数据
private fun dummyModel(): RPdfGeneratorModel
val list = dummyTransactions()
val header = "Statement"
val dummy = RPdfGeneratorModel(list, header)
return dummy
private fun dummyTransactions(): List<RTransaction>
val list = arrayListOf<RTransaction>()
val i1 = RTransaction()
i1.custName = "Johan Store"
i1.itemName = "Snacks"
i1.quantity = 4
i1.pricePerUnit = 40.0
i1.totalPrice = i1.quantity * i1.pricePerUnit
i1.transactionDateStr = "10 Sep, 20"
i1.transType = RTransactionType.plus
list.add(i1)
val i2 = RTransaction()
i2.custName = "Alice Store"
i2.itemName = "Chocolate"
i2.quantity = 3
i2.pricePerUnit = 79.0
i2.totalPrice = i2.quantity * i2.pricePerUnit
i2.transactionDateStr = "9 Sep, 20"
i2.transType = RTransactionType.plus
list.add(i2)
val i3 = RTransaction()
i3.custName = "Alexa Mall"
i3.itemName = "Shoes"
i3.quantity = 2
i3.pricePerUnit = 177.0
i3.totalPrice = i3.quantity * i3.pricePerUnit
i3.transactionDateStr = "9 Sep, 20"
i3.transType = RTransactionType.minus
list.add(i3)
val i4 = RTransaction()
i4.custName = "Zainab Baba"
i4.itemName = "Chips"
i4.quantity = 5
i4.pricePerUnit = 140.0
i4.totalPrice = i4.quantity * i4.pricePerUnit
i4.transactionDateStr = "8 Sep, 20"
i4.transType = RTransactionType.plus
list.add(i4)
list.add(i1)
list.add(i2)
list.add(i3)
list.add(i4)
list.add(i1)
list.add(i2)
list.add(i3)
list.add(i4)
return list
现在调用 RPdfGenerator 函数。请务必在调用之前询问 WRITE_EXTERNAL_STORAGE 权限。更多详情请查看example project
val dummyInfo = dummyModel()
RPdfGenerator.generatePdf(this, dummyInfo)
【讨论】：
【参考方案3】：package com.cete.androidexamples.dynamicpdf.helloworld;
import com.cete.dynamicpdf.*;
import com.cete.dynamicpdf.pageelements.Label;
import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.widget.Toast;
public class DynamicPDFHelloWorld extends Activity
private static String FILE = Environment.getExternalStorageDirectory()
+ "/HelloWorld.pdf";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Create a document and set it's properties
Document objDocument = new Document();
objDocument.setCreator("DynamicPDFHelloWorld.java");
objDocument.setAuthor("Your Name");
objDocument.setTitle("Hello World");
// Create a page to add to the document
Page objPage = new Page(PageSize.LETTER, PageOrientation.PORTRAIT,
54.0f);
// Create a Label to add to the page
String strText = "Hello World...\nFrom DynamicPDF™ Generator "
+ "for Java\nDynamicPDF.com";
Label objLabel = new Label(strText, 0, 0, 504, 100,
Font.getHelvetica(), 18, TextAlign.CENTER);
// Add label to page
objPage.getElements().add(objLabel);
// Add page to document
objDocument.getPages().add(objPage);
try
// Outputs the document to file
objDocument.draw(FILE);
Toast.makeText(this, "File has been written to :" + FILE,
Toast.LENGTH_LONG).show();
catch (Exception e)
Toast.makeText(this,
"Error, unable to write to file\n" + e.getMessage(),
Toast.LENGTH_LONG).show();
将 DynamicPDF 添加到 libs 文件 你可以从link下载它
【讨论】：
【参考方案4】：这是我创建带有文本和图像的 pdf 文件的示例编码 内容使用 Itext 库并将 pdf 文件存储在外部 存储位置。唯一的事情是你需要下载itext 库并将其添加到您的项目中。
private void createPdf()
// TODO Auto-generated method stub
com.itextpdf.text.Document document = new com.itextpdf.text.Document();
try
String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/vindroid";
File dir = new File(path);
if(!dir.exists())
dir.mkdirs();
Log.d("PDFCreator", "PDF Path: " + path);
File file = new File(dir, "sample.pdf");
FileOutputStream fOut = new FileOutputStream(file);
PdfWriter.getInstance(document, fOut);
//open the document
document.open();
Paragraph p1 = new Paragraph("Sample PDF CREATION USING IText");
Font paraFont= new Font(Font.FontFamily.COURIER);
p1.setAlignment(Paragraph.ALIGN_CENTER);
p1.setFont(paraFont);
//add paragraph to document
document.add(p1);
Paragraph p2 = new Paragraph("This is an example of a simple paragraph");
Font paraFont2= new Font(Font.FontFamily.COURIER,14.0f,0, CMYKColor.GREEN);
p2.setAlignment(Paragraph.ALIGN_CENTER);
p2.setFont(paraFont2);
document.add(p2);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
Bitmap bitmap = BitmapFactory.decodeResource(getBaseContext().getResources(), R.drawable.ic_launcher);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100 , stream);
Image myImg = Image.getInstance(stream.toByteArray());
myImg.setAlignment(Image.MIDDLE);
//add image to document
document.add(myImg);
catch (DocumentException de)
Log.e("PDFCreator", "DocumentException:" + de);
catch (IOException e)
Log.e("PDFCreator", "ioException:" + e);
finally
document.close();
【讨论】：
【参考方案5】：您可以使用 iText 创建 PDF。使用最新版本 (5.1.3) 并在构建路径中仅包含 itextpdf-5.1.3.jar。您可以使用类似的东西来完成 pdf 创建。
Document document = new Document();
file = Environment.getExternalStorageDirectory().getPath() + "/Hello.pdf"
PdfWriter.getInstance(document,new FileOutputStream(file));
document.open();
Paragraph p = new Paragraph("Hello PDF");
document.add(p);
document.close();
另外，不要忘记在 manifest.xml 中使用写入外部存储的权限。
【讨论】：
这里出现错误.....PdfWriter.getInstance(document,new FileOutputStream(file));告诉我可能的解决方案 如果您发布错误，这里的人可以更好地帮助您。仅仅因为解决方案对您不起作用而投反对票并不是要走的路。在发布内容之前，请花一些时间学习行为准则。此外，如果您没有尝试自己调试至少一点，没有人会引导您完成解决方案。 我正在使用相同的代码，在控制台中显示正确的格式，但创建 PDF 后对齐不正确【参考方案6】：我在一个 java swing 应用程序中使用了 iText——它可以很好地创建一些基本的 PDF 文件。代码是这样的：
@Override public void buildPDF(List<Folder> folders)
Document document = new Document();
String fname = "";
boolean open = false;
try
// step 2:
// we create a writer that listens to the document
// and directs a PDF-stream to a file
fname = filename(getName()) + "-" + filename(getDataset().getName()) + ".pdf";
PdfWriter writer = PdfWriter.getInstance(document,
new FileOutputStream(fname));
for (int i = 0; i < folders.size(); i++ )
// grab the folder
LIFolder f = (LIFolder) folders.get(i);
if (f == null) continue;
open = true;
break;
// we have no valid folders
if (folders.size() > 0 && !open)
// they selected an empty row
javax.swing.JOptionPane.showMessageDialog(null, BUNDLE.getString("report-none-selected"),
BUNDLE.getString("report-none-selected-title"),
javax.swing.JOptionPane.ERROR_MESSAGE);
return;
if (folders.size() == 0)
// get all folders from dataset
folders = FolderFinder.findAll(getSession(), getDataset());
open = false;
for (int i = 0; i < folders.size(); i++ )
// grab the folder
LIFolder f = (LIFolder) folders.get(i);
if (f == null) continue;
if (!open)
open = true;
document.open();
Paragraph p = new Paragraph(BUNDLE.getString("report-heading-summary-main"), getPageHeadingFont());
p.setAlignment("center");
document.add(p);
p = new Paragraph(BUNDLE.getString("report-heading-summary-main-sub"), this.pageHeadingFont1);
p.setAlignment("center");
document.add(p);
blankLine(document);
drawLine(writer);
///////////////////////////////////////////////////////////////////////////////////////////////////
// Primary Statement Details
///////////////////////////////////////////////////////////////////////////////////////////////////
p = new Paragraph("Primary Statement Details", this.pageHeadingFont2);
p.setAlignment("center");
document.add(p);
blankLine(document);
PdfPTable table = new PdfPTable(4);
table.addCell(new BorderlessCell(new Paragraph("Dataset:", getFieldHeadingFont())));
BorderlessCell cell = new BorderlessCell(new Paragraph(getDataset().getName(), getTextFont()));
cell.setColspan(3);
table.addCell(cell);
table.addCell(new BorderlessCell(new Paragraph("Data Entry Clerk:", getFieldHeadingFont())));
cell = new BorderlessCell(new Paragraph(
(f.getDataEntryClerk() != null ? f.getDataEntryClerk().toDescriptionPathString() : emptyIfNull(null)),
getTextFont()));
cell.setColspan(3);
table.addCell(cell);
table.setWidthPercentage(100);
cell = new BorderlessCell(new Paragraph("Statement Number:", getFieldHeadingFont()));
table.addCell(cell);
table.addCell(new BorderlessCell(new Paragraph(f.getReferenceId(), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Statement Date:", getFieldHeadingFont())));
String strDate = "";
java.util.Date date = f.getStatementDate();
if (date != null)
SimpleDateFormat formatter = new SimpleDateFormat("MM/dd/yyyy");
strDate = formatter.format(date);
table.addCell(new BorderlessCell(new Paragraph(strDate, getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Statement Location:", getFieldHeadingFont())));
cell = new BorderlessCell(new Paragraph(emptyIfNull(f.getTakerLocation()), getTextFont()));
cell.setColspan(3);
table.addCell(cell);
table.addCell(new BorderlessCell(new Paragraph("Statement keywords:", getFieldHeadingFont())));
cell = new BorderlessCell(new Paragraph(emptyIfNull(f.getKeywords()), getTextFont()));
cell.setColspan(3);
table.addCell(cell);
document.add(table);
///////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////
// Statement Giver's Details
///////////////////////////////////////////////////////////////////////////////////////////////////
LIPerson p01 = null;
Set<Actor> actors = f.getActors();
Iterator iter = actors.iterator();
while (iter.hasNext())
Actor actor = (Actor) iter.next();
if (actor instanceof LIPerson)
LIPerson person = (LIPerson) actor;
if (person.getReferenceId().toString().equalsIgnoreCase("p01") )
p01 = person;
break;
blankLine(document);
drawLine(writer);
p = new Paragraph(new Chunk("Statement Giver's Details", this.pageHeadingFont2));
p.setAlignment("center");
document.add(p);
java.util.ArrayList giver = new java.util.ArrayList();
if (p01 != null)
giver.add(p01);
table = new PdfPTable(2);
table.setWidthPercentage(100f);
table.addCell(new BorderlessCell(new Paragraph("Name of Statement Giver:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph(ActorsToString(giver), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Sex:", getFieldHeadingFont())));
if (p01 == null)
table.addCell(new BorderlessCell(new Paragraph(emptyIfNull("TBD"), getTextFont())));
else
table.addCell(new BorderlessCell(new Paragraph((p01.getSex() != null ? p01.getSex().toString() : ""), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Tribe:", getFieldHeadingFont())));
if (p01 == null)
table.addCell(new BorderlessCell(new Paragraph(emptyIfNull(null), getTextFont())));
else
table.addCell(new BorderlessCell(
new Paragraph((p01.getEthnicityOrTribe() != null ? p01.getEthnicityOrTribe().toDescriptionPathString() : emptyIfNull(null)),
getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Nationality:", getFieldHeadingFont())));
if (p01 == null)
table.addCell(new BorderlessCell(new Paragraph(emptyIfNull(null), getTextFont())));
else
table.addCell(new BorderlessCell(
new Paragraph((p01.getNationality() != null ? p01.getNationality().toDescriptionPathString() : emptyIfNull(null)),
getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Marital Status:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph(emptyIfNull(f.getMaritalStatus()), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Education Level:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph(emptyIfNull(f.getEducationLevel()), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("County of Origin:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph(emptyIfNull(f.getCountyOfOrigin()), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Mother's Name:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph(emptyIfNull(f.getMothersName()), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Father's Name:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph(emptyIfNull(f.getFathersName()), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("# of Dependents:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph(Integer.toString(f.getNumDependents()), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Phone Number:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph(emptyIfNull(f.getPhoneNumber()), getTextFont())));
document.add(table);
///////////////////////////////////////////////////////////////////////////////////////////////////
// Summary
///////////////////////////////////////////////////////////////////////////////////////////////////
blankLine(document);
drawLine(writer);
p = new Paragraph(new Chunk("Summary", this.pageHeadingFont2));
p.setAlignment("center");
document.add(p);
p = new Paragraph(new Chunk(emptyIfNull(f.getSourceSummary()), getTextFont()));
document.add(p);
///////////////////////////////////////////////////////////////////////////////////////////////////
// Incident(s)
///////////////////////////////////////////////////////////////////////////////////////////////////
Set<Act> acts = f.getActs();
if (acts.size() > 0)
// sort them by id
Hashtable map = new Hashtable();
Iterator it = acts.iterator();
String[] ids = new String[acts.size()];
int x = 0;
while (it.hasNext())
LIAct act = (LIAct) it.next();
String index = Integer.toString(act.getId());
map.put(index, act);
ids[x++] = index;
java.util.Arrays.sort(ids);
blankLine(document);
drawLine(writer);
p = new Paragraph(new Chunk("Act(s)", this.pageHeadingFont2));
p.setAlignment("center");
document.add(p);
blankLine(document);
table = new PdfPTable(4);
table.setWidthPercentage(100);
for (int y = 0; y < ids.length; y++)
LIAct act = (LIAct) map.get(ids[y]);
table.addCell(new BorderlessCell(new Paragraph("Act ID:", getFieldHeadingFont())));
cell = new BorderlessCell(new Paragraph(act.getReferenceId(), getTextFont()));
cell.setColspan(3);
table.addCell(cell);
table.addCell(new BorderlessCell(new Paragraph("Start Date:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph((act.getWhen() != null ? act.getWhen().toString():""), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("End Date:", getFieldHeadingFont())));
table.addCell(new BorderlessCell(new Paragraph((act.getUntil() != null?act.getUntil().toString():""), getTextFont())));
table.addCell(new BorderlessCell(new Paragraph("Location of act:", getFieldHeadingFont())));
p = new Paragraph(emptyIfNull(act.getWhere().toString()), getTextFont());
p.setAlignment(Paragraph.ALIGN_LEFT);
cell = new BorderlessCell(p);
cell.setColspan(3);
table.addCell(cell);
table.addCell(new BorderlessCell(new Paragraph("Precise Location:", getFieldHeadingFont())));
p = new Paragraph(emptyIfNull(act.getPreciseLocation()), getTextFont());
p.setAlignment(Paragraph.ALIGN_LEFT);
cell = new BorderlessCell(p);
cell.setColspan(3);
table.addCell(cell);
table.addCell(new BorderlessCell(new Paragraph("Violation:", getFieldHeadingFont())));
p = new Paragraph(emptyIfNull(act.getViolation().toDescriptionPathString()), getTextFont());
p.setAlignment(Paragraph.ALIGN_LEFT);
cell = new BorderlessCell(p);
cell.setColspan(3);
table.addCell(cell);
table.addCell(new BorderlessCell(new Paragraph("Description:", getFieldHeadingFont())));
p = new Paragraph(emptyIfNull(act.getDescriptionLocation()), getTextFont());
p.setAlignment(Paragraph.ALIGN_LEFT);
cell = new BorderlessCell(p);
cell.setColspan(3);
table.addCell(cell);
// add empty cell
cell = new BorderlessCell(new Paragraph(""));
cell.setColspan(4);
table.addCell(cell);
cell = new BorderlessCell(new Paragraph(""));
cell.setColspan(4);
table.addCell(cell);
document.add(table);
/////////////////////////////////////////////////////////////////////////////////////////////////
// Victims
/////////////////////////////////////////////////////////////////////////////////////////////////
List<Actor> victims = this.getAllVictims(f);
if (!victims.isEmpty())
blankLine(document);
drawLine(writer);
String strVictims = ActorsToString(victims);
p = new Paragraph(new Chunk("Victim(s)", this.pageHeadingFont2));
p.setAlignment("center");
document.add(p);
p = new Paragraph(new Chunk("Name(s) of Victim(s): ", getFieldHeadingFont()));
p.add(new Chunk(strVictims, getTextFont()));
document.add(p);
String gender = ActorsToGender(victims);
p = new Paragraph(new Chunk("Gender: ", getFieldHeadingFont()));
p.add(new Chunk(gender, getTextFont()));
document.add(p);
/////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////
// Perps
/////////////////////////////////////////////////////////////////////////////////////////////////
List<Actor> perps = this.getAllPerpetrators(f);
if (!perps.isEmpty())
blankLine(document);
drawLine(writer);
p = new Paragraph(new Chunk("Perpetrator(s)", this.pageHeadingFont2));
p.setAlignment("center");
document.add(p);
String strPerps = ActorsToString(perps);
p = new Paragraph(new Chunk("Name(s) of alleged perpetrator(s): ", getFieldHeadingFont()));
p.add(new Chunk(strPerps, getTextFont()));
document.add(p);
/////////////////////////////////////////////////////////////////////////////////////////////////
document.newPage();
catch (DocumentException de)
System.err.println(de.getMessage());
catch (java.io.IOException ioe)
System.err.println(ioe.getMessage());
// step 5: we close the document
if (open)
document.close();
if (!fname.equals(""))
// launch it
Reports.LaunchPDF(fname);
如果您需要更多信息，请告诉我。祝你好运！
【讨论】：
嗨 Tarrant，我想在 android 应用程序中创建一个 PDF 文件，而不是在 java swing 中。 我正在使用简单的代码使用 iText pdf 库在我的 sd 卡中创建一个 pdf 文件，但它给出了以下错误。 1. 找不到类 'com.itextpdf.text.pdf.PdfGraphics2D'，引用自方法 com.itextpdf.text.pdf.PdfContentByte.createGraphics 2.查找类 'com.itextpdf.text.pdf.PdfPrinterGraphics2D'，引用自方法 com.itextpdf.text.pdf.PdfContentByte.createPrinterGraphics 3。错误/dalvikvm(309)：找不到类 'org.bouncycastle.cms.CMSEnvelopedData'，引用自方法 com.itextpdf.text.pdf.PdfReader.readDecryptedDocObj 我假设您已将该库添加到您的项目中。我认为您可能需要在 jar 文件上运行 dx（在 android sdk 中），因为除非您使用的是 Eclipse？ dx 用于将非android jar 中的类文件转换为dex 文件，以便可以在设备上找到/使用它们。 是的，我已将库添加到我的项目中，并且我正在使用 Eclipse 作为 IDE。您能分享一下您使用过的 iText 版本吗？因为 iText 5.0.7 用于在 android 上开发应用程序，但它不是免费的。他们收取大约 1500 美元的许可证费用。你有其他安卓的开源 pdf 库吗。如果你知道请分享。 我使用了 iText 2.0.6。我相信当时它是开源的。以上是关于如何使用 iText 或 android 上的其他库创建 PDF 文件？的主要内容，如果未能解决你的问题，请参考以下文章
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