I have tried all the possible way and I have searched a lot. Only solution I found is here Adding (and overriding) files to compressed archive but when I run the code in the line zipFile.renameTo(tempFile) something happens and its just hang in there. I couldn't figure out what happened?
Can anyone help me?
File zipFile = new File("C:/ass.zip");
// get a temp file
File tempFile = null;
try {
tempFile = File.createTempFile(zipFile.getName(), null);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// delete it, otherwise you cannot rename your existing zip to it.
tempFile.delete();
System.out.println(zipFile.getAbsolutePath());
boolean renameOk=zipFile.renameTo(tempFile);
if (!renameOk)
{
try {
throw new Exception("could not rename the file "+zipFile.getAbsolutePath()+" to "+tempFile.getAbsolutePath());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
byte[] buf = new byte[4096 * 1024];
ZipInputStream zin = null;
ZipEntry entry = null;
ZipOutputStream out = null;
try {
zin = new ZipInputStream(new FileInputStream(tempFile));
out = new ZipOutputStream(new FileOutputStream(zipFile));
entry = zin.getNextEntry();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
while (entry != null) {
String name = entry.getName();
if (entry.getName().contains("s.txt")) {
// Compress the files
InputStream in = null;
try {
in = new FileInputStream(entry.getName());
String fName = entry.getName();
// Add ZIP entry to output stream.
out.putNextEntry(new ZipEntry(fName));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// Transfer bytes from the file to the ZIP file
int len;
try {
while ((len = in.read(buf)) > 0) {
String s = new String(buf);
if (s.contains("host=")) {
buf = s.replaceAll("host=sssws", "host="+PropertyHandler.getInstance().getProperty("hostName")).getBytes();
}
out.write(buf, 0, (len < buf.length) ? len : buf.length);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// Complete the entry
try {
out.closeEntry();
in.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else{
// Add ZIP entry to output stream.
try {
out.putNextEntry(new ZipEntry(name));
// Transfer bytes from the ZIP file to the output file
int len;
while ((len = zin.read(buf)) > 0) {
try {
out.write(buf, 0, len);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
try {
entry = zin.getNextEntry();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// Close the streams
try {
zin.close();
// Complete the ZIP file
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
tempFile.delete();
}
you should place
tempFile.delete();
this line after rename the zipFile
boolean renameOk=zipFile.renameTo(tempFile);
so it's be like
boolean renameOk=zipFile.renameTo(tempFile);
tempFile.delete();
Related
I have a .tar.gz file and I want to untar that same file.
To do that I have this function in java:
private void unTarFile(String tarFile, File destFile) {
TarArchiveInputStream tis = null;
FileInputStream fis = null;
GZIPInputStream gzipInputStream = null;
BufferedInputStream bis = null;
try {
fis = new FileInputStream(tarFile);
bis = new BufferedInputStream(fis);
// .gz
gzipInputStream = new GZIPInputStream(bis);
// .tar.gz
tis = new TarArchiveInputStream(gzipInputStream);
TarArchiveEntry tarEntry = null;
while ((tarEntry = tis.getNextTarEntry()) != null) {
System.out.println(" tar entry- " + tarEntry.getName());
if (tarEntry.isDirectory()) {
continue;
} else {
// In case entry is for file ensure parent directory is in place
// and write file content to Output Stream
File outputFile = new File(destFile + File.separator + tarEntry.getName());
outputFile.getParentFile().mkdirs();
IOUtils.copy(tis, new FileOutputStream(outputFile));
}
}
} catch (IOException ex) {
System.out.println("Error while untarring a file- " + ex.getMessage());
} finally {
if (bis != null) {
try {
bis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (gzipInputStream != null) {
try {
gzipInputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (fis != null) {
try {
fis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (tis != null) {
try {
tis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
This works and I can untar my .tar.gz successfully.
I can edit the files of the untarred directory to, but when I try to delete my directory I cant:
Did I forgot to close something?
I am trying through HWCryto - https://github.com/open-eid/hwcrypto.js/wiki/ModernAPI - to add support in a Struts2 application to digital signing.
Trying to follow Bruno Lowagie's book first i create an empty signature
CertificateFactory certFactory;
try {
certFactory = CertificateFactory.getInstance("X.509");
ByteArrayInputStream in = new ByteArrayInputStream(certDecoded);
cert = (X509Certificate) certFactory.generateCertificate(in);
} catch (CertificateException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
Calendar cal = Calendar.getInstance();
int estimatedSize = 8192;
PdfSignatureAppearance sap = pdfStamper.getSignatureAppearance();
sap.setVisibleSignature("sig");
sap.setCertificate(cert);
sap.setCertificationLevel(PdfSignatureAppearance.CERTIFIED_NO_CHANGES_ALLOWED);
sap.setSignDate(cal);
ExternalSignatureContainer external = new ExternalBlankSignatureContainer(PdfName.ADOBE_PPKLITE,
PdfName.ADBE_PKCS7_DETACHED);
try {
MakeSignature.signExternalContainer(sap, external, 8192);
pdfStamper.close();
pdfReader.close();
} catch (GeneralSecurityException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (DocumentException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
After that i get the pdf output and create a new hash that i will send to smartcard
byte [] alteredPDF=output.toByteArray();
ExternalDigest externalDigest = new ExternalDigest() {
#Override
public MessageDigest getMessageDigest(String hashAlgorithm) throws GeneralSecurityException {
return DigestAlgorithms.getMessageDigest(hashAlgorithm, "BC");
}
};
PdfSignatureAppearance sapFinal = null;
try {
ByteArrayOutputStream outputFinal = new ByteArrayOutputStream();
pdfReader = new PdfReader(new ByteArrayInputStream(alteredPDF));
pdfStamper = PdfStamper.createSignature(pdfReader, outputFinal, '\0');
sapFinal = pdfStamper.getSignatureAppearance();
sapFinal.setVisibleSignature("sig");
sapFinal.setCertificationLevel(PdfSignatureAppearance.CERTIFIED_NO_CHANGES_ALLOWED);
sapFinal.setCertificate(cert);
sapFinal.setSignDate(cal);
PdfSignature dic = new PdfSignature(PdfName.ADOBE_PPKLITE, PdfName.ADBE_PKCS7_DETACHED);
dic.setReason(sap.getReason());
dic.setLocation(sap.getLocation());
String certInfo = cert.getSubjectX500Principal().getName();
dic.setName(certInfo.substring(certInfo.indexOf("CN=") + 3,
certInfo.indexOf(",OU", certInfo.indexOf("CN=") + 3)));
dic.setSignatureCreator(sap.getSignatureCreator());
dic.setContact(sap.getContact());
dic.setCert(certDecoded);
dic.setDate(new PdfDate(sap.getSignDate()));
sapFinal.setCryptoDictionary(dic);
HashMap<PdfName, Integer> exc = new HashMap<PdfName, Integer>();
exc.put(PdfName.CONTENTS, new Integer(estimatedSize * 2 + 2));
sapFinal.preClose(exc);
} catch (IOException e) {
e.printStackTrace();
} catch (DocumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}catch(Exception e){
e.printStackTrace();
}
byte[] sh = null;
byte[] hashVal = null;
PdfPKCS7 sgn = null;
try {
sgn = new PdfPKCS7(null, new Certificate[] { cert }, "SHA256", null, externalDigest, false);
InputStream data = sapFinal.getRangeStream();
hashVal = DigestAlgorithms.digest(data, externalDigest.getMessageDigest("SHA256"));
sh = sgn.getAuthenticatedAttributeBytes(hashVal, cal, null, null, CryptoStandard.CMS);
sh = MessageDigest.getInstance("SHA256", "BC").digest(sh);
} catch (IOException e) {
e.printStackTrace();
} catch (InvalidKeyException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchProviderException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (GeneralSecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
And finally having the generated sig
sgn.setExternalDigest(sig, null, "RSA");
byte[] encodedSign = null;
try {
System.out.println(Arrays.toString(Hex.decodeHex(hash.toCharArray())));
encodedSign = sgn.getEncodedPKCS7(Hex.decodeHex(hash.toCharArray()), cal, null, null, null,
CryptoStandard.CMS);
} catch (DecoderException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
MakeSignature.signDeferred(pdfReader, "sig", output,
new MyExternalSignatureContainer(encodedSign));
} catch (DocumentException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (GeneralSecurityException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
System.out.println("called sign pdf");
try {
FileOutputStream outputStream = new FileOutputStream("d:\\debug.pdf");
output.writeTo(outputStream);
output.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
Can anyone please point me to what i am doing wrong?
Finally managed to solve my issue. Storing an empty signature into the PDF and recreating the outputstream was being the culprit. Managed to use the same outputstream from beginning to end and it worked.
This link - https://github.com/sueastside/BEIDSign/blob/master/beidsign-service/src/main/java/be/redtree/beid/services/SignatureServiceImpl.java -surely helped me.
Thank you mkl for your time.
The following Java code in two ways to copy files which more efficient? Want to be able to explain why, thank you.
By the way, I've tested the same file which size is about 300 megabytes. The speed of the first method as fast as the second one. But after tested more times, the result is differently.
One of my test result as below:
NO.1: Using transferFrom took 3396ms
NO.1: Using while took 3334ms
NO.2: Using transferFrom took 4239ms
NO.2: Using while took 3225ms
NO.3: Using transferFrom took 3906ms
NO.3: Using while took 4153ms
NO.4: Using transferFrom took 3100ms
NO.4: Using while took 3174ms
NO.5: Using transferFrom took 3156ms
NO.5: Using while took 3180ms
Code:
public void copyData(String inPath, String outPath1, String outPath2) {
FileChannel inChannel = null;
FileChannel outChannel = null;
FileInputStream fin = null;
FileOutputStream fout = null;
File out1File = null;
File out2File = null;
int bufferLen = 20480 * 2 * 1024;
long runTime;
ByteBuffer bb = ByteBuffer.allocateDirect(bufferLen);
for (int i = 0; i < 5; i++) {
try {
fin = new FileInputStream(new File(inPath));
out1File = new File(outPath1);
fout = new FileOutputStream(out1File);
inChannel = fin.getChannel();
outChannel = fout.getChannel();
runTime = System.currentTimeMillis();
outChannel.transferFrom(inChannel, 0, inChannel.size());
runTime = System.currentTimeMillis() - runTime;
System.out.println("NO." + (i + 1) + ": "
+ "Using transferFrom took " + runTime + "ms");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (null != fin) {
try {
fin.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (null != fout) {
try {
fout.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (null != inChannel) {
try {
inChannel.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (null != outChannel) {
try {
outChannel.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
out1File.deleteOnExit();
}
/**********************************************************/
try {
fin = new FileInputStream(new File(inPath));
out2File = new File(outPath2);
fout = new FileOutputStream(out2File);
inChannel = fin.getChannel();
outChannel = fout.getChannel();
runTime = System.currentTimeMillis();
while (true) {
int ret = inChannel.read(bb);
if (ret == -1) {
break;
}
bb.flip();
outChannel.write(bb);
bb.clear();
}
runTime = System.currentTimeMillis() - runTime;
System.out.println("NO." + (i + 1) + ": " + "Using while took "
+ runTime + "ms");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (null != fin) {
try {
fin.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (null != fout) {
try {
fout.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (null != inChannel) {
try {
inChannel.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (null != outChannel) {
try {
outChannel.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
out2File.deleteOnExit();
}
}
}
I wanted to store an Image to SD card by first converting the returned JSONObject that contains base64, then convert it to bitmap. I tried the code below, but nothing seems working.
Php code to return JSON object:
$img = $row["imageName"];
$b64img = mysql_real_escape_string($b64img);
$b64img = base64_encode ($img);
$product["imageName"] = $b64img;
Java Code that retrieves the returned JSON:
for (int i = 0; i < products.length(); i++) {
JSONObject c = products.getJSONObject(i);
byte[] decodedString = Base64.decode(c.getString(TAG_IMAGE_NAME), Base64.DEFAULT);
Bitmap decodedByte = BitmapFactory.decodeByteArray(decodedString, 0, decodedString.length);
String fileN = (i+1)+".jpg";
OutputStream fOut = null;
File file = new File(Environment.getExternalStorageDirectory() + "/FinalTestforDatabase/",fileN);
try {
fOut = new FileOutputStream(file);
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
decodedByte.compress(Bitmap.CompressFormat.JPEG, 85, fOut);
try {
fOut.flush();
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
try {
fOut.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
MediaStore.Images.Media.insertImage(getContentResolver(),file.getAbsolutePath(),file.getName(),file.getName());
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
I have to make sure that the main folder is created first to contain the images, then after that the code below did the trick. The next thing it to create a new folder to contains the images so "/FolderName/FolderName2/" is what I need.
OutputStream fOut = null;
File file = new File(
Environment.getExternalStorageDirectory()
+ "/FolderName/FolderName2/",
fileN);
try {
fOut = new FileOutputStream(file);
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
decodedByte.compress(
Bitmap.CompressFormat.JPEG, 85, fOut);
try {
fOut.flush();
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
try {
fOut.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
MediaStore.Images.Media.insertImage(
getContentResolver(),
file.getAbsolutePath(),
file.getName(), file.getName());
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
I have a problem with my code.
It keeps on crashing when i have a blank editText field.
This bit of code is in the settings of my app and works the data fine but when there is a blank field it crashes the program.
Here's the code for it.
Please don't be harsh because it is my 1st android app. So if anyone knows how to solves the blank edit text field problem that would be greatly appreciated! (Any other comments on how to improve the app would be a help to).
Cheers
package com.cleanyet.cyv100fp;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class sTasks extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.tasks);
/*Sets Up the Variables*/
Button done = (Button) findViewById(R.id.done1);
EditText t1 = (EditText)findViewById(R.id.tbTask1);
EditText t2 = (EditText)findViewById(R.id.tbTask2);
EditText t3 = (EditText)findViewById(R.id.tbTask3);
EditText t4 = (EditText)findViewById(R.id.tbTask4);
EditText t5 = (EditText)findViewById(R.id.tbTask5);
String FILENAME1 = "stask1";
String FILENAME2 = "stask2";
String FILENAME3 = "stask3";
String FILENAME4 = "stask4";
String FILENAME5 = "stask5";
String task1 = null;
String task2 = null;
String task3 = null;
String task4 = null;
String task5 = null;
String edit = "Edit Task";
/*Fixes the Blank Field bug*/
/*Sets up the file input*/
FileInputStream fis = null;
/*Gets the tasks set previously*/
/*Task 1 set up*/
try {
fis = openFileInput(FILENAME1);
byte[] dataArray = new byte[fis.available()];
while (fis.read(dataArray) != -1){
task1 = new String(dataArray);
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
try {
fis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (task1.toString().length() < 0) {
task1.toString();
t1.setText(task1);
}
else {
t1.setText(edit);
}
/*Task 2 set up*/
try {
fis = openFileInput(FILENAME2);
byte[] dataArray = new byte[fis.available()];
while (fis.read(dataArray) != -1){
task2 = new String(dataArray);
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
try {
fis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (task2.toString().length() < 0) {
task2.toString();
t2.setText(task2);
}
else {
t2.setText(edit);
}
/*Task 3 set up*/
try {
fis = openFileInput(FILENAME3);
byte[] dataArray = new byte[fis.available()];
while (fis.read(dataArray) != -1){
task3 = new String(dataArray);
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
try {
fis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (task3.toString().length() < 0) {
task3.toString();
t3.setText(task3);
}
else {
t3.setText(edit);
}
/*Task 4 set up*/
try {
fis = openFileInput(FILENAME4);
byte[] dataArray = new byte[fis.available()];
while (fis.read(dataArray) != -1){
task4 = new String(dataArray);
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
try {
fis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (task4.toString().length() < 0) {
task4.toString();
t4.setText(task4);
}
else {
t4.setText(edit);
}
/*Task 5 set up*/
try {
fis = openFileInput(FILENAME5);
byte[] dataArray = new byte[fis.available()];
while (fis.read(dataArray) != -1){
task5 = new String(dataArray);
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
try {
fis.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (task5.toString().length() < 0) {
task5.toString();
t5.setText(task5);
}
else {
t5.setText(edit);
}
/*When changes have been made and done is clicked*/
done.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
/*Sets up the Variables*/
EditText t1 = (EditText)findViewById(R.id.tbTask1);
EditText t2 = (EditText)findViewById(R.id.tbTask2);
EditText t3 = (EditText)findViewById(R.id.tbTask3);
EditText t4 = (EditText)findViewById(R.id.tbTask4);
EditText t5 = (EditText)findViewById(R.id.tbTask5);
String tasks1 = t1.getText().toString();
String tasks2 = t2.getText().toString();
String tasks3 = t3.getText().toString();
String tasks4 = t4.getText().toString();
String tasks5 = t5.getText().toString();
String FILENAME1 = "stask1";
String FILENAME2 = "stask2";
String FILENAME3 = "stask3";
String FILENAME4 = "stask4";
String FILENAME5 = "stask5";
String task1 = tasks1;
String task2 = tasks2;
String task3 = tasks3;
String task4 = tasks4;
String task5 = tasks5;
String edit = "Go to settings to make this task.";
if (t1 != null){
t1.setText(edit);
/*t2.setText(edit);
t3.setText(edit);
t4.setText(edit);
t5.setText(edit);*/
};
/*Put if statement here to catch the empty field*/
/*Makes The Changes to the Tasks*/
try {
FileOutputStream fos1 = openFileOutput(FILENAME1, Context.MODE_PRIVATE);
fos1.write(task1.getBytes());
fos1.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
FileOutputStream fos2 = openFileOutput(FILENAME2, Context.MODE_PRIVATE);
fos2.write(task2.getBytes());
fos2.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
FileOutputStream fos3 = openFileOutput(FILENAME3, Context.MODE_PRIVATE);
fos3.write(task3.getBytes());
fos3.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
FileOutputStream fos4 = openFileOutput(FILENAME4, Context.MODE_PRIVATE);
fos4.write(task4.getBytes());
fos4.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
FileOutputStream fos5 = openFileOutput(FILENAME5, Context.MODE_PRIVATE);
fos5.write(task5.getBytes());
fos5.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
startActivity(new Intent("com.checkin.cyv100fp.settings"));
}
});
}
}
if (task1.toString().length() < 0) {
task1.toString();
t1.setText(task1);
}
else {
t1.setText(edit);
}
The above makes no sense at all.
Firstly task1 IS a string so there's no need to call toString() to convert it to one.
Secondly, your conditional statement (if) is checking to see if task1 has a length less than zero....think about it.
Thirdly, if it does have an impossible length less than zero you then call toString() on it again (with no variable to receive the impossible less than zero result) and you then try to set the text of your t1 EditText.
The chances are that your file reading is failing (probably because you only save the strings later in the onClick(...) method). Because your task strings will be null if the file reading fails then you need to test for null before trying to use them.
In other words you're doing this in your code...
String task1 = null;
To fix the bit of code I enclosed at the beginning, use...
if (task1 != null) {
t1.setText(task1);
}
else {
t1.setText(edit);
}
...but most importantly, make sure your files have the strings in them that you need to read.