Question

[I’m quite new with Android programming so please excuse me for my nooby questions]

I’m developing a dictionary app. One of this app’s feature is the Favourite button which allows user to save favourite words (short-click) and view the list of favourite words (long-click).

So far, I have succeeded in saving words into a text file (myfav.txt). The format of the content of the text file is as below (each item on a line):

    A
    B
    C
    ...
    Z

However, I have problem in loading and viewing this file inside my app. I’m thinking of using ListView to display the content of “myfav.txt” but I don’t really know what to do. I have consulted the Qs & As from other similar posts here but found myself more confused as a result.

Therefore, my questions are:

1. How can I load content of “myfav.txt” and display it using ListView? Could you please give detailed instructions as for beginners?
2. Are there any better ways to do view the content of “myfav.txt” other than ListView?

Here is my code:

    //Reading lines from myfav.txt
    btnAddFavourite.setOnLongClickListener(new View.OnLongClickListener() {         

            @Override
            public boolean onLongClick(View v) {
                File sdcard = Environment.getExternalStorageDirectory();
                setContentView(R.layout.text_view);

             //trying opening the myfav.txt
                try{
                       File f = new File(sdcard,"myfolder/myfav.txt");
                       InputStream fileIS = new FileInputStream(f);
                       BufferedReader buf = new BufferedReader(new InputStreamReader(fileIS));
                       String readString = new String();
                       while((readString = buf.readLine())!= null){
                          Log.d("Content: ", readString);

                       //How to code to load/view the content of "myfav.txt" 

                       }
                    } catch (FileNotFoundException e) {
                       e.printStackTrace();
                    } catch (IOException e){
                       e.printStackTrace();
                    }
                return false; 

        }
    });

Thank you very much indeed.

Answer 1

Hi you can find useful example here.