On Button Click Deletes Existing Data From Textview After Re-launching

Whenever i relaunch my app, getting old values into TextView if some stored by me, but facing a small issue, now after relaunching my app once i do tap on button, it deletes earlie

Solution 1:

Try this..

btnInput.setOnClickListener(newOnClickListener() {

        @OverridepublicvoidonClick(View arg0) {
                // TODO Auto-generated method stubString check = editTextInput.getText().toString();
                if(check.equalsIgnoreCase("ABC"))
                {
                        strInput = textViewResult.getText().toString()+","+check; 

                        Toast.makeText(getApplicationContext(), "done", Toast.LENGTH_LONG).show();
                        textViewResult.setText(strInput);
                        editTextInput.setText("");
                }
                else {
                        Toast.makeText(getApplicationContext(), "error", Toast.LENGTH_LONG).show();                    
                }
        }
    });

EDIT

Use split("")

String[] total_abc = textViewResult.getText().toString().split(",");
int total = total_abc.length;

Solution 2:

put prefs.edit().putString("autoSave", s.toString()).commit(); on the OnClick event

and remove textViewResult.setText(prefs.getString("autoSave", "")); instead of it write textViewResult.setText(prefs.getString("autoSave")); you just specify the key value when getting from sharedpreferences thats why you get blank