Apply styles to text in a string Android

Question

I'm trying to create a String with SpannableString to apply colors and bold text.

Spannable WordtoSpan = new SpannableString("Salida de la Capilla de María Auxiliadora\n00:00\nMarquesa de Sales\n00:00\nEspíritu Santo\n00:00\nSagasta\n00:00\nPza. Meneses\n00:00\nPozo Nuevo\n00:00\nPza. Ayuntamiento\n00:00\nSan Miguel\n00:00\nEstación de Penitencia, Iglesia San Miguel\n00:00\nÁnimas\n00:00\nMariano Hernández\n00:00\nEduardo Dato\n00:00\nRojas Marcos\n00:00\nPza. Meneses\n00:00\nCarrera\n00:00\nCalzadilla\n00:00\nGregorio María Ferro\n00:00\nMaría Auxiliadora\n00:00\nMarquesa de Sales\n00:00\nEntrada al Templo\n00:00\n");

tv.setText(WordtoSpan);

To speed up my work I am trying to create a condition like this:

if(WordtoSpan.toString().contains(":")){
// found the text string ":" (00:00)

WordtoSpan.setSpan(new ForegroundColorSpan(Color.rgb(140, 117, 189)), 42, 47, 
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
WordtoSpan.setSpan(new StyleSpan(Typeface.BOLD), 42,47, 47);
}else{
//Not found ":"
}

I would implement the bold text and color to all the String 00:00. Anyone know any quick and easy way? Do not go telling words to words to fill all the 00:00?

Regards!

Answer 1

find the index of "00:00" , and set it as start index of span , and end index as length of "00:00"

    Spannable WordtoSpan = new SpannableString("Salida de la Capilla de María Auxiliadora\n00:00\nMarquesa de Sales\n00:00\nEspíritu Santo\n00:00\nSagasta\n00:00\nPza. Meneses\n00:00\nPozo Nuevo\n00:00\nPza. Ayuntamiento\n00:00\nSan Miguel\n00:00\nEstación de Penitencia, Iglesia San Miguel\n00:00\nÁnimas\n00:00\nMariano Hernández\n00:00\nEduardo Dato\n00:00\nRojas Marcos\n00:00\nPza. Meneses\n00:00\nCarrera\n00:00\nCalzadilla\n00:00\nGregorio María Ferro\n00:00\nMaría Auxiliadora\n00:00\nMarquesa de Sales\n00:00\nEntrada al Templo\n00:00\n");

    String search = new String("00:00");
    int length = search.length();
    String input = WordtoSpan.toString();
    int startIndex = input.indexOf(search);
    while(startIndex > length)
    {
        WordtoSpan.setSpan(new ForegroundColorSpan(Color.rgb(140, 117, 189)), startIndex, startIndex + length,
                Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        WordtoSpan.setSpan(new StyleSpan(Typeface.BOLD), startIndex, startIndex + length, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        startIndex = input.indexOf(search, startIndex + length);
    }

You have to loop throughout the string for the index