Цветной текст в textview

myTextView.setText(Html.fromHtml(text + "<font color=white>" + "your white text" + "</font><br><br>" + "some other text"));

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

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);

public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        TextView txtView = new TextView(this);
        Spanned str = Html.fromHtml("<font color=\"red\">Привет.</font> <font color=\"yellow\">как </font> <font color=\"blue\">дела?</font>");
        txtView.setText(str);
        setContentView(txtView);
    }
}