如何在Android上使用iText或其他一些库创建PDF文件？
Khu*_*ant 7 pdf android pdf-generation itext pdflib
如何在Android上使用iText或其他一些库创建PDF文件？
iText上有没有关于android的教程？
谢谢
小智 12
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.你可以使用这样的东西来完成pdf的创建.
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,不要忘记使用权限写入manifest.xml中的外部存储.
例如,这很简单
这里的代码在我的代理中
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中
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
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_width="fill_parent"
android:layout_height="wrap_content"
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
祝好运
- iTextpdf v5.0.6被列为依赖项.我有两个问题.1. 5.0.6是疯了.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.举几个例子:排除Android API(java.awt)中不存在的API的使用和防止命名空间冲突(BouncyCastle). (2认同)
小智 0
我在 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！