Highlight color in Android display keywords in text

Should be a long time did not write about the technical class article, the day before yesterday there are people in the group asked me, said the group of the Lord for a long period did not share dry, today to share an Android TextView in a large section of the text content how to make the key word color of the article, I hope to help you, I finally got back on the Crooked Road. This article in peacetime should be more commonly used, if you will, you do not have to see, if not, you can take a look, very simple.

Today's share of the article about how to make a large paragraph in the text content of the keyword color highlighting, divided into a keyword highlighting color display and a number of keywords highlighted color display. TextView I have encapsulated it into the Keywordutil tool class, which can be called directly, as follows:

The specific code is as follows:

Package net.loonggg.test;

Import Java.util.regex.Matcher;

Import Java.util.regex.Pattern;

Import android.text.SpannableString;

Import android.text.Spanned;

Import Android.text.style.ForegroundColorSpan;

public class Keywordutil {

/**

* Keywords highlighting color

*

* @param color

* Change in color value

* @param text

* Text

* @param keyword

* Keywords in the text

* @return

*/

public static spannablestring matchersearchtitle (int color, String text,

String keyword) {

spannablestring s = new spannablestring (text);

Pattern p = pattern.compile (keyword);

Matcher m = P.matcher (s);

while (M.find ()) {

int start = M.start ();

int end = M.end ();

S.setspan (new Foregroundcolorspan (color), start, end,

spanned.span_exclusive_exclusive);

}

return s;

}

/**

* Multiple keywords highlighting color

*

* @param color

* Change in color value

* @param text

* Text

* @param keyword

* Key word groups in text

* @return

*/

public static spannablestring matchersearchtitle (int color, String text,

string[] keyword) {

spannablestring s = new spannablestring (text);

for (int i = 0; i < keyword.length; i++) {

Pattern p = pattern.compile (Keyword[i]);

Matcher m = P.matcher (s);

while (M.find ()) {

int start = M.start ();

int end = M.end ();

S.setspan (new Foregroundcolorspan (color), start, end,

spanned.span_exclusive_exclusive);

}

}

return s;

}

}

In fact, after reading the code will know, very simple. You can try it!

Highlight color in Android display keywords in text