Develop Reference

Convert Bitmap image to iText image to be used in PDF

I am taking a photo with the camera and saving the photo value into a bitmap. I would like to use that photo in itext to generate an pdf.
This is the code I have so far.
Bitmap bitmap;
public void Picture()
{
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent,0);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
bitmap=(Bitmap)data.getExtras().get("data");
PDF();
}
public void PDF()
{
try {
ByteArrayOutputStream out = new ByteArrayOutputStream();
Image img = Image.getInstance(bitmap);
Document document = new Document();
PdfWriter.getInstance(document, out);
document.open();
document.add(new Paragraph("Example"));
document.close();
}

bitmap=(Bitmap)data.getExtras().get("data");
ByteArrayOutputStream stream3 = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream3);
Image maimg = Image.getInstance(stream3.toByteArray());
maimg.setAbsolutePosition(490, 745);
maimg.scalePercent(40);
document.add(maimg);

you should download itextpdf-5.3.2.jar file and attach in your project.
You can use it as an example:
public class WritePdfActivity extends Activity
{
private static String FILE = "mnt/sdcard/FirstPdf.pdf";
static Image image;
static ImageView img;
Bitmap bmp;
static Bitmap bt;
static byte[] bArray;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
img=(ImageView)findViewById(R.id.imageView1);
try
{
Document document = new Document();
PdfWriter.getInstance(document, new FileOutputStream(FILE));
document.open();
addImage(document);
document.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
private static void addImage(Document document)
{
try
{
image = Image.getInstance(bArray); ///Here i set byte array..you can do bitmap to byte array and set in image...
}
catch (BadElementException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (MalformedURLException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
// image.scaleAbsolute(150f, 150f);
try
{
document.add(image);
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Here is the reference, Please check
enter link description here
One Important thing better to use PDFBox library for convert Image to PDF

How to capture a photo and immediately put it into an existing pdf?

I couldn't find the solution for my issue. My MainActivity creates a pdf file, the user adds some text via EditText and closes it, no problem with that. Then I have a secondary activity that is calling the MediaStore.ACTION_IMAGE_CAPTURE to take pictures. Once a picture is taken, I'd like to know how I can get this just-captured image into that pdf.
I know I have to reopen the pdf, that is no problem, since I have the pdf file name saved in a variable. The major problem that I see is that I don't know how to programmatically get the file name of the picture, once it is automatically named after "yyyyMMdd_hhMMss.jpg". So how to get the file name from a picture taken by my secondary activity?
*EDIT - Showing code:
From MainActivity:
public class MainActivity extends Activity {
public String FILE = Environment.getExternalStorageDirectory() + "/CoManut/sample.pdf";
public static Font catFont = new Font(Font.FontFamily.TIMES_ROMAN, 18, Font.BOLD);
public static Font redFont = new Font(Font.FontFamily.TIMES_ROMAN, 12, Font.NORMAL, BaseColor.RED);
public static Font subFont = new Font(Font.FontFamily.TIMES_ROMAN, 16, Font.BOLD);
public static Font smallBold = new Font(Font.FontFamily.TIMES_ROMAN, 12, Font.BOLD);
EditText estRep;
EditText sensRep;
EditText cabRep;
String estais;
String sensores;
String cabos;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
estRep = (EditText)findViewById(R.id.estaisRep);
sensRep = (EditText)findViewById(R.id.sensoresRep);
cabRep = (EditText)findViewById(R.id.cabosRep);
}
public void gerarPDF(View view) {
estais = estRep.getText().toString();
sensores = sensRep.getText().toString();
cabos = cabRep.getText().toString();
try {
Document document = new Document();
PdfWriter.getInstance(document, new FileOutputStream(FILE));
document.open();
addMetaData(document);
addTitlePage(document);
addContent(document);
document.close();
} catch (Exception e) {
e.printStackTrace();
}
AlertDialog alertDialog = new AlertDialog.Builder(this).create();
alertDialog.setTitle("CoManut");
alertDialog.setMessage("Picture?");
alertDialog.setButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent intent = new Intent(MainActivity.this, PhotoActivity.class);
startActivity(intent);
}
});
alertDialog.setButton2("NO", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "Thanks for using this app!", Toast.LENGTH_LONG).show();
MainActivity.this.finish();
}
});
alertDialog.setIcon(R.mipmap.ic_launcher);
alertDialog.show();
}
private static void addMetaData(Document document) {
document.addTitle("Image and text to PDF");
document.addSubject("Using iText");
document.addKeywords("Java, PDF, iText");
document.addAuthor("Ricardo Gramowski");
document.addCreator("Ricardo Gramowski");
}
private static void addTitlePage(Document document)
throws DocumentException {
Paragraph preface = new Paragraph();
addEmptyLine(preface, 1);
preface.add(new Paragraph("Maintenance report", catFont));
addEmptyLine(preface, 1);
preface.add(new Paragraph("Report generated by: " + System.getProperty("user.name") + ", " + new Date(),
smallBold));
addEmptyLine(preface, 3);
preface.add(new Paragraph("This doc is important", smallBold));
addEmptyLine(preface, 8);
preface.add(new Paragraph("This doc has been generated by Gramowski.",
redFont));
document.add(preface);
// Start a new page
document.newPage();
}
private void addContent(Document document) throws DocumentException {
Anchor anchor = new Anchor("Chapter 1", catFont);
anchor.setName("Chapter 1");
Chapter catPart = new Chapter(new Paragraph(anchor), 1);
Paragraph subPara = new Paragraph("Results", subFont);
Section subCatPart = catPart.addSection(subPara);
addEmptyLine(subPara, 1);
createTable(subCatPart);
document.add(catPart);
}
private void createTable(Section subCatPart)
throws BadElementException {
PdfPTable table = new PdfPTable(2);
PdfPCell c1 = new PdfPCell(new Phrase("Item"));
c1.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(c1);
c1 = new PdfPCell(new Phrase("Is that good? (OK/Not OK)"));
c1.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(c1);
table.setHeaderRows(1);
table.addCell("Estais da Torrre ");
table.addCell(estais);
table.addCell("Sensores ");
table.addCell(sensores);
table.addCell("Cabos ");
table.addCell(cabos);
subCatPart.add(table);
}
private static void addEmptyLine(Paragraph paragraph, int number) {
for (int i = 0; i < number; i++) {
paragraph.add(new Paragraph(" "));
}
}
}
And my PhotoActivity:
public class PhotoActivity extends ActionBarActivity {
Button b1;
ImageView iv;
Bitmap bp;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_photo);
b1 = (Button) findViewById(R.id.button1);
iv = (ImageView) findViewById(R.id.imageView);
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 0);
}
});
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap mImageBitmap = (Bitmap) extras.get("data");
iv.setImageBitmap(mImageBitmap);
String fpath = Environment.getExternalStorageDirectory() + "/CoManut/sample.pdf";
File file = new File(fpath);
if (!file.exists()) {
try {
file.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Document document = new Document();
try {
PdfWriter.getInstance(document, new FileOutputStream(fpath));
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (DocumentException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
document.open();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
mImageBitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
Image myImg = null;
try {
myImg = Image.getInstance(stream.toByteArray());
} catch (BadElementException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
myImg.setAlignment(Image.MIDDLE);
try {
document.add(myImg);
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
document.close();
}
}
// Button to go back to the MainActivity
public void onclickButton2(View view) {
PhotoActivity.this.finish();
}
#Override
protected void onDestroy() {
super.onDestroy();
}
}

Override your onActivitResult() method in your Main Activity
Here you will get the image bitmap from (Intent Data)
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap mImageBitmap = (Bitmap) extras.get("data");
}
}
Now you have the bitmap. You can add bitmap image like below using the iText Library
try {
ByteArrayOutputStream stream = new ByteArrayOutputStream();
mImageBitmap.compress(Bitmap.CompressFormat.PNG, 100, stream); // Try with Bitmap.CompressFormat.JPG also
Image image = Image.getInstance(stream.toByteArray());
document.add(image);
}catch(IOException ex){
ex.printStackTrace();
}
Update1
Your onActivityResult() should look like this.
Note Make sure you have WRITE_EXTERNAL_STORAGE permissions in your menifest.xml file.
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap mImageBitmap = (Bitmap) extras.get("data");
img.setImageBitmap(mImageBitmap);
String fpath = Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/sample.pdf";
File file = new File(fpath);
if (!file.exists()) {
try {
file.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Document document = new Document();
try {
PdfWriter.getInstance(document, new FileOutputStream(fpath));
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (DocumentException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
document.open();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
mImageBitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
Image myImg = null;
try {
myImg = Image.getInstance(stream.toByteArray());
} catch (BadElementException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
myImg.setAlignment(Image.MIDDLE);
try {
document.add(myImg);
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
document.close();
}
}
This will create a sample.pdf file in your sdcard and add Image bitmap into it.
Hope this helps.
I tested it here its working. :)

ImagePager save images to sd card?

I have implemented a save button in my ImagePagerActivity however it crashes when i click the save button.
Please point out any errors I might be causing unaware or if there's another way of saving the images more effectively to the sd card. I am still a newbie to coding so please double check my work.
ImagePagerActivity.java
.....
Button isave;
isave = (Button) findViewById(R.id.save);
isave.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Bitmap mSaveBit = imageLoader.getMemoryCache().get(Constants.IMAGES[pager.getCurrentItem()]);
File imageFile = null;
if (null == mSaveBit) {
imageFile = imageLoader.getDiscCache().get(Constants.IMAGES[pager.getCurrentItem()]);
}
File f = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/Pictures/HD GOSPEL LOCKSCREENS");
if (!f.exists()) {
f.mkdirs();
}
f = new File(f.getAbsolutePath(),
String.valueOf(System.currentTimeMillis()) + "HDGL.PNG");
if (!f.exists()) {
try {
f.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
try {
mSaveBit.compress(Bitmap.CompressFormat.PNG, 100, new FileOutputStream(f));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Toast.makeText(ImagePagerActivity.this, "Image Successfully Saved", Toast.LENGTH_LONG).show();
}
});
.....

caching images in android

I want to cache some images when downloaded and when again my application starts, it should check if the images are cached so it returns images otherwise null , so I download and cache them again
I tried using LRU Cache http://developer.android.com/reference/android/util/LruCache.html but it didn't work for me , coz its for API level 12, and I am working on 10.
here is that question
caching images with LruCache
What are the other easy adoptable possible solutions to cache

Check out this for storing your files:
Storage options android sdk

okay I did like this
private Bitmap getFile(String fileName) {
Bitmap file = null;
try {
FileInputStream fis;
fis = openFileInput(fileName);
file = BitmapFactory.decodeStream(fis);
fis.close();
}
catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return file;
}
protected void putFile(Bitmap bitmap, String fileName){
FileOutputStream fos;
try {
fos = openFileOutput(fileName, Context.MODE_PRIVATE);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
fos.close();
}
catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
#Override
protected String doInBackground(Void... params) {
for (int i = 0; i < HomeActivity.globalObj.categoriesList.size(); i++) {
Bitmap b;
b = getFile(HomeActivity.globalObj.categoriesList.get(i).name);
if (b == null) {
b = getImageBitmap(HomeActivity.globalObj.categoriesList.get(i).large_image);
putFile(b, HomeActivity.globalObj.categoriesList.get(i).name);
}
ImageView iv = new ImageView(getApplicationContext());
iv.setImageBitmap(b);
imageViewList.add(iv);
}

display all textfiles in listview created by your app

The code creates a text file in local memory, but how do I get all files created by my application in a list view:
public class newfile extends Activity {
public EditText textBox,textbox2;
FileOutputStream fos=null;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.newfile);
Button save = (Button) findViewById(R.id.btnSave);
save.setOnClickListener(new View.OnClickListener(){
public void onClick(View v) {
textBox = (EditText) findViewById(R.id.txtText1);
textbox2 = (EditText) findViewById(R.id.fname);
String FILENAME = textbox2.getText().toString();
String value = textBox.getText().toString();
try{
fos = openFileOutput(FILENAME,MODE_WORLD_WRITEABLE);
}
catch(IOException e)
{
e.printStackTrace();
}
byte[] buffer = value.getBytes();
try {
fos.write(buffer);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fos.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fos.close();
Toast.makeText(getBaseContext(), "File saved successfully!", Toast.LENGTH_LONG).show();
finish();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
}
}

You can get a list all application files using Context.fileList. Then use ArrayAdapter to populate your list view