file has been created but when opened nothing is in it

Question

I have an android app and simply i need to store data in a file. I need to use external storage to make it available for other applications too. im using this piece of code

BufferedWriter bw;
 try {
 bw = new BufferedWriter(new FileWriter("/storage/sdcard0/download/themagicfile.txt", true));
 bw.write("hi");
 } catch (IOException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }

which i got from http://stackoverflow.com/questions/10041007/write-to-txt-file-but-not-overwrite I can see the file in the directory but when i open it there is nothing in it. i need to use FileWriter to make it appendable. any suggestion

• sjain: Also check - stackoverflow.com/questions/11386441/…

Answer 1

you should also call

 bw.flush(); 
 bw.close();

rembember to add the WRITE_EXTERNAL_STORAGE permission to the AndroidManifest.xml file

 try {
 bw = new BufferedWriter(new FileWriter("/storage/sdcard0/download/themagicfile.txt", true));
 bw.write("hi");
 bw.flush();
 } (IOException e) { 
 e.printStackTrace();
 } finally {
 try {
 bw.close();
 } (IOException e) { }
 }

• Vivere_FlowCoder: I could see the text after this. But i needed to refresh the file manager in my device. it just doesnt show it write away. even if the usb Cable is not connected to laptop..why? is there any solutoin for that that i can use inside a code?