How do i retrive text from sdcard and set text view accordingly?

Question

I am using gridview and layout inflater to display icon with text.

It should look like this:

My text file contains following data:

Profile 0|Profile 1|Profile 2

I am using following code:

    public View getView(final int position, View convertView, ViewGroup parent) {
        View v;
        //String text;
        final ImageView picturesView;
        if (convertView == null) {
            LayoutInflater li = getLayoutInflater();
            v = li.inflate(R.layout.icon, null);
            File sdcard = Environment.getExternalStorageDirectory();
            File file = new File(sdcard,"string.txt");
            //StringBuilder stext = new StringBuilder();
            TextView tv = (TextView)v.findViewById(R.id.icon_text);
            try {
                BufferedReader br = new BufferedReader(new FileReader(file));
                String line;

                while ((line = br.readLine()) != null) {
                    String[] columns = line.split("\\|");
                    for (String name : columns){ 

                       tv.setText(name);
                    }

                    //stext.append(line);
                    //stext.append('\n');
                }
            }
            catch (IOException e) {
                //You'll need to add proper error handling here
            }

            
            tv.setTextSize(12);
            tv.setTextColor(Color.BLACK);              
            
        }
        else {
            v = convertView;
        }

}

I want to set the text view with the string values

TextView tv = (TextView)v.findViewById(R.id.icon_text);
tv.setText();

I tried to check the columns length through Toast.makeText(SDCardImagesActivity.this, ""+columns.length, Toast.LENGTH_LONG).show(); but it is showing 1(5 times)

I am confused how to use columns value in tv.setText and whether columns array is correct or not.

Answer 1

Looking at the code you're referencing

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        View v;
        if(convertView==null){
            LayoutInflater li = getLayoutInflater();
            v = li.inflate(R.layout.icon, null);
            TextView tv = (TextView)v.findViewById(R.id.icon_text);
            tv.setText("Profile "+position);
            ImageView iv = (ImageView)v.findViewById(R.id.icon_image);
            iv.setImageResource(R.drawable.icon);
        }
        else
        {
            v = convertView;
        }
        return v;
    }

Instead of this line...

tv.setText("Profile "+position);

...use the following...

tv.setText(columns[position]);

Answer 2

You store the content of each file line in the columns-array. You should store this data for later, or set the text at once in your loop.

Answer 3

Please try the following code to set TextView

File sdcard = Environment.getExternalStorageDirectory();
    File file = new File(sdcard,"string.txt");



    try {
        BufferedReader br = new BufferedReader(new FileReader(file));
        String line;

        while ((line = br.readLine()) != null) {


            String delimiter = "\\|";

            String[] columns = line.split(delimiter);
            for (String name : columns){ 

                tv.setText(name);
            }

        }
    }
    catch (Exception e) {
        //You'll need to add proper error handling here
        e.printStackTrace();
    }

Thanks Deepak

Answer 4

You have can create the above view without creating TextView and ImageVIew. Just create a button and use drawableTop. If you want to set Profile name as per your image. create condition statements if button1 then button.settext("Profile1") like this.

<Button 
  android:id="@+id/openpdfbutton"
  android:layout_width="100dip"
  android:layout_height="60dip"
  android:text="Click"

  android:tag="@drawable/cancelfocus"
  android:drawableTop="@drawable/cancelfocus"
  />

Thanks Deepak