自定义的TextView android系统中有不同的颜色的话 [英] Custom TextView in android with different color words

问题描述

是否有可能有一个的TextView 有不同颜色的每一个字？甚至每一个字母？我试图延长的TextView 和创造，但不过，我认为这个问题是，我将如何绘制所有的文字出来，同时用不同的颜色？

Is it possible to have a textview to have different color for every word? Or even every letter? I tried extending textview and creating it but however I thought of the problem is, how would I draw all the the text out at the same time with different colors?

推荐答案

使用<一个href="http://developer.android.com/reference/android/text/Spannable.html"><$c$c>android.text.Spannable

final SpannableStringBuilder str = new SpannableStringBuilder(text);
str.setSpan(
    new ForegroundColorSpan(Color.BLUE), 
    wordStart, 
    wordEnd, 
    SpannableStringBuilder.SPAN_EXCLUSIVE_EXCLUSIVE
);
myTextView.setText(str);

修改：为了让所有的Java绿色

EDIT: To make all "Java" green

final Pattern p = Pattern.compile("Java");
final Matcher matcher = p.matcher(text);

final SpannableStringBuilder spannable = new SpannableStringBuilder(text);
final ForegroundColorSpan span = new ForegroundColorSpan(Color.GREEN);
while (matcher.find()) {
    spannable.setSpan(
        span, matcher.start(), matcher.end(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
    );
}
myTextView.setText(spannable);

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