How to convert base64 to different kind of files ( doc , pdf , word ..etc ) ?
0
I am working on project where I have to download attachments that i receive from server. I have to exploit base64 data and convert it to the appropriate type and download it. It works for me perfectly with images ( base 64 => bytes => bitmap ) but I find troubles with other types ( txt , pdf ..etc )
java
android base64 asked Nov 14 '18 at 8:21
rachadkhrachadkh
43
add a comment |
0
I am working on project where I have to download attachments that i receive from server. I have to exploit base64 data and convert it to the appropriate type and download it. It works for me perfectly with images ( base 64 => bytes => bitmap ) but I find troubles with other types ( txt , pdf ..etc )
java
android base64 asked Nov 14 '18 at 8:21
rachadkhrachadkh
43
add a comment |
0
0
0
I am working on project where I have to download attachments that i receive from server. I have to exploit base64 data and convert it to the appropriate type and download it. It works for me perfectly with images ( base 64 => bytes => bitmap ) but I find troubles with other types ( txt , pdf ..etc )
java
android base64 asked Nov 14 '18 at 8:21
rachadkhrachadkh
43
I am working on project where I have to download attachments that i receive from server. I have to exploit base64 data and convert it to the appropriate type and download it. It works for me perfectly with images ( base 64 => bytes => bitmap ) but I find troubles with other types ( txt , pdf ..etc )
java
android base64 java
android base64 asked Nov 14 '18 at 8:21
rachadkhrachadkh
43
asked Nov 14 '18 at 8:21
rachadkhrachadkh
43
asked Nov 14 '18 at 8:21
rachadkhrachadkh
43
asked Nov 14 '18 at 8:21
rachadkhrachadkh
43
asked Nov 14 '18 at 8:21
rachadkhrachadkh
43
43
add a comment |
add a comment |
1 Answer
1
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oldest
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0
try this
try {
File sdcard = Environment.getExternalStorageDirectory();
File file = new File(sdcard,"test.pdf");
File new_file_name = new File(sdcard,"new_file.pdf");
byte input_file = IOUtil.readFile(file);
byte encodedBytes = Base64.encode(input_file,URL_SAFE);
String encodedString = new String(encodedBytes);
byte decodedBytes = Base64.decode(encodedString.getBytes(),URL_SAFE);
FileOutputStream fos = new FileOutputStream(new_file_name);
fos.write(decodedBytes);
fos.flush();
fos.close();
}catch (Exception e)
{
Log.e("ERROR",e.toString());
}
And IOUtil class
public class IOUtil {
public static byte readFile(String file) throws IOException {
return readFile(new File(file));
}
public static byte readFile(File file) throws IOException {
// Open file
RandomAccessFile f = new RandomAccessFile(file, "r");
try {
// Get and check length
long longlength = f.length();
int length = (int) longlength;
if (length != longlength)
throw new IOException("File size >= 2 GB");
// Read file and return data
byte data = new byte[length];
f.readFully(data);
return data;
} finally {
f.close();
}
}
}
this code contain both encode and decode parts
answered Nov 14 '18 at 9:27
Lahiru PrasannaLahiru Prasanna
418825
I found troubles with FileOutputStream , it occurs an FileNotFoundException in this line : FileOutputStream fos = new FileOutputStream(new_file_name);
– rachadkh
Nov 14 '18 at 10:54
It was a permission problem , it works fine , thanks
– rachadkh
Nov 14 '18 at 13:23
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
try this
try {
File sdcard = Environment.getExternalStorageDirectory();
File file = new File(sdcard,"test.pdf");
File new_file_name = new File(sdcard,"new_file.pdf");
byte input_file = IOUtil.readFile(file);
byte encodedBytes = Base64.encode(input_file,URL_SAFE);
String encodedString = new String(encodedBytes);
byte decodedBytes = Base64.decode(encodedString.getBytes(),URL_SAFE);
FileOutputStream fos = new FileOutputStream(new_file_name);
fos.write(decodedBytes);
fos.flush();
fos.close();
}catch (Exception e)
{
Log.e("ERROR",e.toString());
}
And IOUtil class
public class IOUtil {
public static byte readFile(String file) throws IOException {
return readFile(new File(file));
}
public static byte readFile(File file) throws IOException {
// Open file
RandomAccessFile f = new RandomAccessFile(file, "r");
try {
// Get and check length
long longlength = f.length();
int length = (int) longlength;
if (length != longlength)
throw new IOException("File size >= 2 GB");
// Read file and return data
byte data = new byte[length];
f.readFully(data);
return data;
} finally {
f.close();
}
}
}
this code contain both encode and decode parts
answered Nov 14 '18 at 9:27
Lahiru PrasannaLahiru Prasanna
418825
I found troubles with FileOutputStream , it occurs an FileNotFoundException in this line : FileOutputStream fos = new FileOutputStream(new_file_name);
– rachadkh
Nov 14 '18 at 10:54
It was a permission problem , it works fine , thanks
– rachadkh
Nov 14 '18 at 13:23
add a comment |
0
try this
try {
File sdcard = Environment.getExternalStorageDirectory();
File file = new File(sdcard,"test.pdf");
File new_file_name = new File(sdcard,"new_file.pdf");
byte input_file = IOUtil.readFile(file);
byte encodedBytes = Base64.encode(input_file,URL_SAFE);
String encodedString = new String(encodedBytes);
byte decodedBytes = Base64.decode(encodedString.getBytes(),URL_SAFE);
FileOutputStream fos = new FileOutputStream(new_file_name);
fos.write(decodedBytes);
fos.flush();
fos.close();
}catch (Exception e)
{
Log.e("ERROR",e.toString());
}
And IOUtil class
public class IOUtil {
public static byte readFile(String file) throws IOException {
return readFile(new File(file));
}
public static byte readFile(File file) throws IOException {
// Open file
RandomAccessFile f = new RandomAccessFile(file, "r");
try {
// Get and check length
long longlength = f.length();
int length = (int) longlength;
if (length != longlength)
throw new IOException("File size >= 2 GB");
// Read file and return data
byte data = new byte[length];
f.readFully(data);
return data;
} finally {
f.close();
}
}
}
this code contain both encode and decode parts
answered Nov 14 '18 at 9:27
Lahiru PrasannaLahiru Prasanna
418825
I found troubles with FileOutputStream , it occurs an FileNotFoundException in this line : FileOutputStream fos = new FileOutputStream(new_file_name);
– rachadkh
Nov 14 '18 at 10:54
It was a permission problem , it works fine , thanks
– rachadkh
Nov 14 '18 at 13:23
add a comment |
0
0
0
try this
try {
File sdcard = Environment.getExternalStorageDirectory();
File file = new File(sdcard,"test.pdf");
File new_file_name = new File(sdcard,"new_file.pdf");
byte input_file = IOUtil.readFile(file);
byte encodedBytes = Base64.encode(input_file,URL_SAFE);
String encodedString = new String(encodedBytes);
byte decodedBytes = Base64.decode(encodedString.getBytes(),URL_SAFE);
FileOutputStream fos = new FileOutputStream(new_file_name);
fos.write(decodedBytes);
fos.flush();
fos.close();
}catch (Exception e)
{
Log.e("ERROR",e.toString());
}
And IOUtil class
public class IOUtil {
public static byte readFile(String file) throws IOException {
return readFile(new File(file));
}
public static byte readFile(File file) throws IOException {
// Open file
RandomAccessFile f = new RandomAccessFile(file, "r");
try {
// Get and check length
long longlength = f.length();
int length = (int) longlength;
if (length != longlength)
throw new IOException("File size >= 2 GB");
// Read file and return data
byte data = new byte[length];
f.readFully(data);
return data;
} finally {
f.close();
}
}
}
this code contain both encode and decode parts
answered Nov 14 '18 at 9:27
Lahiru PrasannaLahiru Prasanna
418825
try this
try {
File sdcard = Environment.getExternalStorageDirectory();
File file = new File(sdcard,"test.pdf");
File new_file_name = new File(sdcard,"new_file.pdf");
byte input_file = IOUtil.readFile(file);
byte encodedBytes = Base64.encode(input_file,URL_SAFE);
String encodedString = new String(encodedBytes);
byte decodedBytes = Base64.decode(encodedString.getBytes(),URL_SAFE);
FileOutputStream fos = new FileOutputStream(new_file_name);
fos.write(decodedBytes);
fos.flush();
fos.close();
}catch (Exception e)
{
Log.e("ERROR",e.toString());
}
And IOUtil class
public class IOUtil {
public static byte readFile(String file) throws IOException {
return readFile(new File(file));
}
public static byte readFile(File file) throws IOException {
// Open file
RandomAccessFile f = new RandomAccessFile(file, "r");
try {
// Get and check length
long longlength = f.length();
int length = (int) longlength;
if (length != longlength)
throw new IOException("File size >= 2 GB");
// Read file and return data
byte data = new byte[length];
f.readFully(data);
return data;
} finally {
f.close();
}
}
}
this code contain both encode and decode parts
answered Nov 14 '18 at 9:27
Lahiru PrasannaLahiru Prasanna
418825
answered Nov 14 '18 at 9:27
Lahiru PrasannaLahiru Prasanna
418825
answered Nov 14 '18 at 9:27
Lahiru PrasannaLahiru Prasanna
418825
answered Nov 14 '18 at 9:27
Lahiru PrasannaLahiru Prasanna
418825
418825
I found troubles with FileOutputStream , it occurs an FileNotFoundException in this line : FileOutputStream fos = new FileOutputStream(new_file_name);
– rachadkh
Nov 14 '18 at 10:54
It was a permission problem , it works fine , thanks
– rachadkh
Nov 14 '18 at 13:23
add a comment |
I found troubles with FileOutputStream , it occurs an FileNotFoundException in this line : FileOutputStream fos = new FileOutputStream(new_file_name);
– rachadkh
Nov 14 '18 at 10:54
It was a permission problem , it works fine , thanks
– rachadkh
Nov 14 '18 at 13:23
I found troubles with FileOutputStream , it occurs an FileNotFoundException in this line : FileOutputStream fos = new FileOutputStream(new_file_name);
– rachadkh
Nov 14 '18 at 10:54
I found troubles with FileOutputStream , it occurs an FileNotFoundException in this line : FileOutputStream fos = new FileOutputStream(new_file_name);
– rachadkh
Nov 14 '18 at 10:54
It was a permission problem , it works fine , thanks
– rachadkh
Nov 14 '18 at 13:23
It was a permission problem , it works fine , thanks
– rachadkh
Nov 14 '18 at 13:23
add a comment |
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