Reading .txt file from Asset Folder

Question

I am reading .txt files from Asset Folder by Passing a String which is in the previous activity list item.

Let us consider,Recyclerview item size in 5.

Android -- Item 1
IOS -- Item 2
BlackBerry -- Item 3
Symbian -- Item 4
Bada -- Item 5

When I click Android,the "Android" String is passed through an Intent and Assigned to the variable of Song.

 InputStream inputstream = getResources().getAssets().open(***Song*** + ".txt");

and reads the Android.txt file from the Asset Folder. Only the first item is called. When I click other items in the list, intent String passed to next activity, but did not open the respective .txt file from folder. It jumped to catch.

Here is my code.

 Intent i = getIntent();
        Song = i.getExtras().getString("Title");
        textView.setText(Song);
        System.out.println(".....1");
        try {
            System.out.println(".....2");
            InputStream inputstream = getResources().getAssets().open(Song + ".txt");
            System.out.println(".....3");
            BufferedReader reader = new BufferedReader(new InputStreamReader(inputstream));
            String m = reader.toString();
            StringBuilder total = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                total.append(line);
            }
            System.out.println(".....4");
            m = total.toString();
            System.out.println(".....5" + m);

            textView.setText(m);
            textView.setTextColor(Color.BLACK);
            System.out.println(".....6");
        } catch (IOException ex) {
            System.out.println(".....7" + ex);
        }

System.out.println ---> Prints all in the 1st item click

Except clicking of 1st item, print only the following in LogCat.
System.out: .....1
System.out: .....2

Adapter Class at where I click the RecyclerView item,

public class SongAdapter extends RecyclerView.Adapter<SongAdapter.ViewHolder> {
    Context con;

    ArrayList<String> songHeading = new ArrayList<>();
    SharedPreferences pref;
    String MyPREFERENCES = "Preference";


    public SongAdapter(Context context, ArrayList<String> heading) {
        this.con = context;
        this.songHeading = heading;
    }


    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.song_list_item, parent, false);
        ViewHolder viewHolder = new ViewHolder(v);

        return viewHolder;
    }

    @Override
    public void onBindViewHolder(final ViewHolder holder, final int position) {

        pref = con.getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
        holder.txtSong.setText(songHeading.get(position));

        holder.Clicker.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent i = new Intent(view.getContext(), MainActivity.class);
                i.putExtra("Title", songHeading.get(position));
                view.getContext().startActivity(i);
            }
        });
    }


    @Override
    public int getItemCount() {
        return songHeading.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        public final View mView;
        public TextView txtSong;
        LinearLayout Clicker;

        public ViewHolder(View itemView) {
            super(itemView);
            mView = itemView;
            txtSong = (TextView) itemView.findViewById(R.id.textView);
            Clicker = (LinearLayout) itemView.findViewById(R.id.Clicker);
        }
    }
}

UPDATE:

After changing code like the following getting Error in Verbose

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.song_list_item2);
        context = this;

        pref = this.context.getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
        textView = (TextView) findViewById(R.id.textView);

        Intent i = getIntent();
        Song = i.getExtras().getString("Title");
        textView.setText(Song);
        System.out.println(".....1");
        textView.setText(loadJSONFromAsset());
    }

    private String loadJSONFromAsset() {
        String json = null;
        try {

            InputStream is = getAssets().open(Song + ".txt");

            int size = is.available();

            byte[] buffer = new byte[size];

            is.read(buffer);

            is.close();

            json = new String(buffer, "UTF-8");

        } catch (IOException ex) {
            ex.printStackTrace();
            return null;
        }
        return json;
    }

at hitesh.androidjsonapp.MainActivity.loadJSONFromAsset(MainActivity.java:40) pointed this line

   InputStream is = getAssets().open(Song + ".txt");

Post your item click code. where you create an intent and send title value — Srinivasan, May 03 '16 at 06:44
If I can read the 5 files, it is an easy to read even it more than 10000. So for easy proceeding of question I mentioned 5 files. — Parama Sudha, May 03 '16 at 06:44
@ParamaSudha I think your problem with your onBindViewHolder(...) method. Just make sure with Log, the " Song = i.getExtras().getString("Title");" giving the respective item you click in the listview — Srinivasan, May 03 '16 at 06:54
Yeah.Even I checked. In Log.e prints when it jumped to catch. — Parama Sudha, May 03 '16 at 06:57
I guess the issue is in InputStream inputstream = getResources().getAssets().open(Song + ".txt"); — Parama Sudha, May 03 '16 at 06:58
Make sure the following line print the respective title System.out.println(".....1"+Song) and add finally block with your try..catch there you need to close the inputstream — Srinivasan, May 03 '16 at 07:08
13588-13588/hitesh.androidjsonapp I/System.out: .....1 \n BlackBerry — Parama Sudha, May 03 '16 at 07:14

score 0 · Answer 1 · answered May 03 '16 at 07:18

0

Make sure the file name is not append with any special characters(\n) or empty space and add finally block with your try..catch there you need to close the inputstream

13588-13588/hitesh.androidjsonapp I/System.out: .....1 \n BlackBerry

answered May 03 '16 at 07:18

Srinivasan

4,481
3
28
36

Actually \n is edited by me. I got the Lo.g result as 13588-13588/hitesh.androidjsonapp I/System.out: .....1 ---> 1st line BlackBerry ---> in second line. By showing separate texts to you it I used \n – Parama Sudha May 03 '16 at 07:20
Okay...I will check by using inputstream.close() – Parama Sudha May 03 '16 at 07:21
:P please check and let me know..Make sure the file name is exactly same as you have in asset folder – Srinivasan May 03 '16 at 07:22
Did not find any changes in Result.Still it is the same. – Parama Sudha May 03 '16 at 07:32
http://stackoverflow.com/a/9544781/1537419 can you please check this answer, may be character encoding creating problem for you.. – Srinivasan May 03 '16 at 07:49
I am Sorry...Even I referred & used the above link code.But have not seen any changes in my result. – Parama Sudha May 03 '16 at 08:27
Please check my UPDATION... Error in Verbose – Parama Sudha May 03 '16 at 09:07
Please help me to fix it @Srinivasan – Parama Sudha May 03 '16 at 09:12
Can you just rename the first file(which is working fine) and save it as BlackBerry.txt in your asset folder. If its working fine the problem is not on your code. – Srinivasan May 03 '16 at 09:47
Noticed that only 0th item click file is reading from asset. It may be Android,BlackBerry and anything. (I rearranged item as BlackBerry,Android.....) .Now BlackBerry.txt is opened. – Parama Sudha May 03 '16 at 09:55
Then I am sure the problem is not with files, Its because of how we are starting the Intent – Srinivasan May 03 '16 at 10:00
Instead of calling intent from adapter, why dont you pass the selected item from Adapter to Activity with the help of Interface – Srinivasan May 03 '16 at 10:01
Okay...Let me try. – Parama Sudha May 03 '16 at 10:02
And even I used SharedPreference , but it was worked the same. – Parama Sudha May 03 '16 at 10:03
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/110891/discussion-between-parama-sudha-and-srinivasan). – Parama Sudha May 03 '16 at 10:05

Reading .txt file from Asset Folder

1 Answers1