android 工具类-关键字高亮 EditTextUtils

 
    public static SpannableString matcherSearchTitle(int color, String text,
                                                     String keyword) {
        List strings = new ArrayList();
        SpannableString s = new SpannableString(text);
        if (keyword.length() == 1) {

            Pattern p = Pattern.compile(escapeExprSpecialWord(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);
            }
        } else {
            for (int i = 0; i < keyword.length(); i++) {
                if (i == keyword.length()) {
                    String substring = keyword.substring(i);
                    strings.add(substring);
                } else {
                    String substring = keyword.substring(i, i + 1);
                    strings.add(substring);
                }
            }
            for (int i = 0; i < keyword.length(); i++) {
                Pattern p = Pattern.compile(escapeExprSpecialWord(strings.get(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;
    }

    
    private static String escapeExprSpecialWord(String keyword) {
        String[] fbsArr = {"\", "$", "(", ")", "*", "+", ".", "[", "]", "?", "^", "{", "}", "|"};
        for (String key : fbsArr) {
            if (keyword.contains(key)) {
                keyword = keyword.replace(key, "\" + key);
            }
        }
        return keyword;
    }

使用方式

KeywordUtil.matcherSearchTitle(Color.RED, "所有字", "需要高亮的关键字");

public class EditTextUtils {
    
    public static boolean isShouldHideSoftKeyBoard(View view, MotionEvent event) {
        if (view != null && (view instanceof EditText)) {
            int[] l = { 0, 0 };
            view.getLocationInWindow(l);
            int left = l[0], top = l[1], bottom = top + view.getHeight(), right = left + view.getWidth();
            if (event.getX() > left && event.getX() < right && event.getY() > top && event.getY() < bottom) {
                // If click the EditText event ,ignore it
                return false;
            } else {
                return true;
            }
        }
        // if the focus is EditText,ignore it;
        return false;
    }

    
    public static void hideSoftKeyBoard(IBinder token, Context context) {
        if (token != null) {
            InputMethodManager im = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
            im.hideSoftInputFromWindow(token, InputMethodManager.HIDE_NOT_ALWAYS);
        }
    }

    //禁止EditText输入空格
    public static InputFilter filter = (source, start, end, dest, dstart, dend) -> {
        if (source.equals(" ")){
            return "";
        } else return null;
    };