Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.text.SpannableStringBuilder;
import android.text.style.CharacterStyle;

public class Main {
    /**
     * Given either a Spannable String or a regular String and a token, apply
     * the given CharacterStyle to the span between the tokens, and also remove
     * tokens.
     * <p/>
     * For example, {@code setSpanBetweenTokens("Hello ##world##!", "##",
     *new ForegroundColorSpan(0xFFFF0000));} will return a CharSequence
     * {@code "Hello world!"} with {@code world} in red.
     *
     * @param text  The text, with the tokens, to adjust.
     * @param token The token string; there should be at least two instances of
     *              token in text.
     * @param cs    The style to apply to the CharSequence. WARNING: You cannot
     *              send the same two instances of this parameter, otherwise the
     *              second call will remove the original span.
     * @return A Spannable CharSequence with the new style applied.
     * @see <a href="http://developer.android.com/reference/android/text/style/CharacterStyle
     * .html">Character Style</a>
     */
    public static CharSequence setSpanBetweenTokens(CharSequence text, String token, CharacterStyle... cs) {
        // Start and end refer to the points where the span will apply
        int tokenLen = token.length();
        int start = text.toString().indexOf(token) + tokenLen;
        int end = text.toString().indexOf(token, start);

        if (start > -1 && end > -1) {
            // Copy the spannable string to a mutable spannable string
            SpannableStringBuilder ssb = new SpannableStringBuilder(text);
            for (CharacterStyle c : cs) {
                ssb.setSpan(c, start, end, 0);
            }

            // Delete the tokens before and after the span
            ssb.delete(end, end + tokenLen);
            ssb.delete(start - tokenLen, start);

            text = ssb;
        }

        return text;
    }
}