to Spannable String - Android Graphics

Android examples for Graphics:Spannable

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Description

to Spannable String

Demo Code


//package com.java2s;

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.TextUtils;
import android.text.style.ImageSpan;

public class Main {
    /** //w  w  w  .j a  va 2  s. c  o  m
     * toSpannableString
     * @return SpannableString
     * @throws
     */
    public static SpannableString toSpannableString(Context context,
            String text) {
        if (!TextUtils.isEmpty(text)) {
            SpannableString spannableString = new SpannableString(text);
            int start = 0;
            Pattern pattern = Pattern.compile("\\\\ue[a-z0-9]{3}",
                    Pattern.CASE_INSENSITIVE);
            Matcher matcher = pattern.matcher(text);
            while (matcher.find()) {
                String faceText = matcher.group();
                String key = faceText.substring(1);
                BitmapFactory.Options options = new BitmapFactory.Options();
                Bitmap bitmap = BitmapFactory.decodeResource(
                        context.getResources(),
                        context.getResources().getIdentifier(key,
                                "drawable", context.getPackageName()),
                        options);
                ImageSpan imageSpan = new ImageSpan(context, bitmap);
                int startIndex = text.indexOf(faceText, start);
                int endIndex = startIndex + faceText.length();
                if (startIndex >= 0)
                    spannableString.setSpan(imageSpan, startIndex,
                            endIndex, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                start = (endIndex - 1);
            }

            return spannableString;
        } else {
            return new SpannableString("");
        }
    }

    public static SpannableString toSpannableString(Context context,
            String text, SpannableString spannableString) {

        int start = 0;
        Pattern pattern = Pattern.compile("\\\\ue[a-z0-9]{3}",
                Pattern.CASE_INSENSITIVE);
        Matcher matcher = pattern.matcher(text);
        while (matcher.find()) {
            String faceText = matcher.group();
            String key = faceText.substring(1);
            BitmapFactory.Options options = new BitmapFactory.Options();
            //         options.inSampleSize = 2;
            Bitmap bitmap = BitmapFactory.decodeResource(
                    context.getResources(),
                    context.getResources().getIdentifier(key, "drawable",
                            context.getPackageName()), options);
            ImageSpan imageSpan = new ImageSpan(context, bitmap);
            int startIndex = text.indexOf(faceText, start);
            int endIndex = startIndex + faceText.length();
            if (startIndex >= 0)
                spannableString.setSpan(imageSpan, startIndex, endIndex,
                        Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            start = (endIndex - 1);
        }

        return spannableString;
    }
}

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