Loop with delay period

android, handler, runnable

Solution

int i = 0;
String text;
Handler handler = new Handler();

public void spanText(String txt) {
    text = txt;
    handler.post(runnable);

Runnable runnable = new Runnable() {
    @Override
    public void run() {
        Spannable spannable = Spannable.Factory.getInstance().newSpannable(text);
        StyleSpan style = new StyleSpan(Typeface.BOLD);
        spannable.setSpan(style, i, i+1, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
        bestResult.setText(spannable, BufferType.SPANNABLE);
        i++;
        if(i < text.length())
            handler.postDelayed(runnable, 5000);
    }
};

Problem

I have a TextView and I want each second to highlight another letter in the word. For example: h e l l o - h e l l o - h e l l o - h e l l o - h e l l o What I have done: ``` int i = 0; String text; Handler handler = new Handler(); public void spanText(String txt) { text = txt; for(int i=0; i<text.length(); i++) { handler.post(runnable); } Runnable runnable = new Runnable() { @Override public void run() { Spannable spannable = Spannable.Factory.getInstance().newSpannable(text); StyleSpan style = new StyleSpan(Typeface.BOLD); spannable.setSpan(style, i, i+1, Spanned.SPAN_INCLUSIVE_INCLUSIVE); bestResult.setText(spannable, BufferType.SPANNABLE); i++; if(i < text.length()) handler.postDelayed(runnable, 5000); } }; ``` Unfortunately it doesn't work and I can see only the last letter highlighted. Thank you in advance.

Original source