CODEWITHSUNDEEP
androidsd-cardfilewriterbufferedwriter
SSG
SSG

Reputation: 314

Android : Write in same file multiple times

New with Android. Sorry! I'm trying to create the following...

  1. Wait for Timer to Finish. (No issues here).
  2. Write time to a log file.
  3. Activate Timer again.
  4. Go back to step 1 & repeat.

The code for writing to the file is as follows...

    File file = new File("/sdcard/log.txt");
    BufferedWriter writer = new BufferedWriter(new FileWriter(file));
    writer.write(str);
    writer.newLine();
    writer.flush();
    writer.close();

The code is only writing the last .write in the file! The previous WRITE is removed. I suspect that its creating a new file everytime and writing the latest line. I tried with FOS and OSW but with same results! Please help, am stuck on this one for almost 48 hours.

Upvotes: 1

Views: 2478

Answers (2)

COD3BOY
COD3BOY

Reputation: 12092

You may want to use this constructor for FileWriter :

FileWriter (File file, boolean append)

By using the second argument as true then the bytes will be written to the end of the file rather than the beginning.

In your code use : BufferedWriter writer = new BufferedWriter(new FileWriter(file,true));

Upvotes: 2

user1417430
user1417430

Reputation: 376

Use the FileWriter in append mode.

BufferedWriter writer = new BufferedWriter(new FileWriter(file, true));

Upvotes: 3

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