Android - Persist file when app closes.
- by Donal Rafferty
I am creating a file in my Android application as follows:
HEADINGSTRING = new String("Android Debugging " + "\n"
"XML test Debugging");
}
public void setUpLogging(Context context){
Log.d("LOGGING", "Setting up logging.....");
try { // catches IOException below
FileOutputStream fOut = context.openFileOutput(FILE_NAME,Context.MODE_APPEND);
OutputStreamWriter osw = new OutputStreamWriter(fOut);
// Write the string to the file
osw.write(HEADINGSTRING);
/* ensure that everything is
* really written out and close */
osw.flush();
osw.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
finally{
Log.d("LOGGING", "Finished logging setup.....");
}
}
And I write to the file during the running of the app as follows:
public void addToLog(File file, String text) throws IOException {
BufferedWriter bw = new BufferedWriter (new FileWriter(file, true));
bw.write ("\n" + text);
bw.newLine();
bw.flush();
bw.close();
}
This works fine but when my app closes the file gets deleted and when the app is run again all the information I wrote to it is gone.
How can I make sure the file persists even after closure of the app?
Update:
I have changed MODE_PRIVATE to MODE_APPEND but the problem still remains.
