Method contains

app/src/main/java/razerdp/demo/utils/StringUtil.java:45–50

(String source, String key)

    }

    public static boolean contains(String source, String key) {
        if (noEmpty(source)) {
            return source.contains(key);
        }
        return false;
    }

    public static CharSequence trim(CharSequence cs) {
        int len = cs.length();