How do I write a byte array to a file in Android?

Question

This is my code to create a file.

public void writeToFile(byte[] array) 
{ 
    try 
    { 
        String path = "/data/data/lalallalaa.txt"; 
        FileOutputStream stream = new FileOutputStream(path); 
        stream.write(array); 
    } catch (FileNotFoundException e1) 
    { 
        e1.printStackTrace(); 
    } 
} 

When I try to send my file to my server by just calling the path String path = "/data/data/lalallalaa.txt";

I get this logcat error message:

03-26 18:59:37.205: W/System.err(325): java.io.FileNotFoundException: /data/data/lalallalaa.txt

I don't understand why it can't find a file that is "supposedly" created already.

Answer 1

I think you'd better add close function of FileOutputStream for clear code

It works me perfectly

try {
    if (!file.exists()) {
        file.createNewFile();
    }
    FileOutputStream fos = new FileOutputStream(file);
    fos.write(bytes);
    fos.close();
} catch (Exception e) {
    Log.e(TAG, e.getMessage());
}