KDK KDK - 6 months ago 42
Android Question

Write data continuously to file in external storage - Android App

I am writing the data to the file in an external storage (SD card) on my android. The issue that I am facing is that it just makes one entry and does not go beyond that. I have looked up a number of Q/As here. Could someone please point me in the write direction? TIA!

FileOutputStream outputstream;
try {
file1 = new File(Environment.getExternalStorageDirectory(), "MyData.txt");
outputstream = new FileOutputStream(file1);
OutputStreamWriter oswriter = new OutputStreamWriter(outputstream);
BufferedWriter bwriter = new BufferedWriter (oswriter);
} catch (Exception e) {


You have to tell FileOutputStream to append the data. By default it just overwrites all contents there. For this you only need to use a different constructor FileOutputStream(File, boolean):

outputstream = new FileOutputStream(file1, true);