Three methods for changing the font color of Android Development notes

1. Set the font color directly in the configuration xml file under the layout file, and change the color by adding android: textcolor = "# FFFFFF"

However, this effect only allows the font to display one color.

2. in the activity, use TextView TV = new TextView (this); to instantiate a textview, use setContentView (TV); to load it to the current activity, set the content to be displayed String str = "content to be displayed"; use the following code to change some text fonts. The numbers in the parameters indicate the start position and end position. This method is complex.Copy codeThe Code is as follows: SpannableStringBuilder style = new SpannableStringBuilder (str );
// SpannableStringBuilder implements the CharSequence Interface
Style. setSpan (new ForegroundColorSpan (Color. RED), 0, 2, Spannable. SPAN_EXCLUSIVE_EXCLUSIVE );
Style. setSpan (new ForegroundColorSpan (Color. YELLOW), 2, 4, Spannable. SPAN_EXCLUSIVE_EXCLUSIVE );
Style. setSpan (new ForegroundColorSpan (Color. GREEN), 4, 6, Spannable. SPAN_EXCLUSIVE_EXCLUSIVE );
TV. setText (style); // Add it to TV

3. Use html tags to change the text colorCopy codeThe Code is as follows: TV. setText (Html. fromHtml ("I am <font color = blue> danyijiangnan </font> "));

The Html tag can be used in the string through the html. fromHtml () method, and the font tag can be used to change the font format.