Android SpannableString Create getSpanableText(String wholeText, String spanableText)

Description

get Spanable Text

Declaration

public static SpannableString getSpanableText(String wholeText,
        String spanableText) 

Method Source Code

//package com.java2s;

import android.graphics.Color;

import android.text.Spannable;
import android.text.SpannableString;
import android.text.TextUtils;
import android.text.style.BackgroundColorSpan;

public class Main {

    public static SpannableString getSpanableText(String wholeText,
            String spanableText) {
        if (TextUtils.isEmpty(wholeText))
            wholeText = "";
        SpannableString spannableString = new SpannableString(wholeText);
        if (spanableText.equals(""))
            return spannableString;
        wholeText = wholeText.toLowerCase();
        spanableText = spanableText.toLowerCase();
        int startPos = wholeText.indexOf(spanableText);
        if (startPos == -1) {
            int tmpLength = spanableText.length();
            String tmpResult = "";
            for (int i = 1; i <= tmpLength; i++) {
                tmpResult = spanableText.substring(0, tmpLength - i);
                int tmpPos = wholeText.indexOf(tmpResult);
                if (tmpPos == -1) {
                    tmpResult = spanableText.substring(i, tmpLength);
                    tmpPos = wholeText.indexOf(tmpResult);
                }//  w  w w .  j a  v a  2  s  .  c om
                if (tmpPos != -1)
                    break;
                tmpResult = "";
            }
            if (tmpResult.length() != 0) {
                return getSpanableText(wholeText, tmpResult);
            } else {
                return spannableString;
            }
        }
        int endPos = startPos + spanableText.length();
        do {
            endPos = startPos + spanableText.length();
            spannableString.setSpan(new BackgroundColorSpan(Color.YELLOW),
                    startPos, endPos, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            startPos = wholeText.indexOf(spanableText, endPos);
        } while (startPos != -1);
        return spannableString;
    }

    public static boolean isEmpty(String str) {
        if (str == null || "".equals(str))
            return true;

        for (int i = 0; i < str.length(); i++) {
            char c = str.charAt(i);
            if (c != ' ' && c != '\t' && c != '\r' && c != '\n') {
                return false;
            }
        }
        return true;
    }
}

Related

1. makeColoredString(String text, int color)