Question

I want to create a file in android application during runtime. As i understand i can do it using :

openFileOutput("samplefile.txt", MODE_WORLD_READABLE);

The problem is, i want to create this file in another class not in Activity. How can I do this ?

Answer 1

send context instance as parameters of method in your second class

public class classOI{

    public void writeToFile(Context ctx,String string,String FILENAME){

    try{
      FileOutputStream fos = ctx.openFileOutput(FILENAME, Context.MODE_PRIVATE);
      fos.write(string.getBytes());
      fos.close();
      }catch(Exception e){
        //log for error
      }
    }
}

now you can call it like this in you main activilty :

new classOI().writeToFile(this,"text to write","myFile");