Android中使用到的——UtilToos收集整理（持续更新）

//时间转换(从一个String 转换到另一个String)private static final String FORMAT = "yyyy-MM-dd'T'HH:mm:ss";

private static final String FORMATPAY = "yyyy-MM-dd' 'HH:mm:ss";public static String String2String(String strFrom, String formatFrom, String formatTo) {
    SimpleDateFormat sdf = new SimpleDateFormat(formatTo);    if (strFrom == null || strFrom.length() == 0) {
return null;
}
    if (formatFrom == null || formatFrom.length() == 0) {
formatFrom = FORMAT;
}
    Date date = null;
try {
SimpleDateFormat sdt = new SimpleDateFormat(formatFrom);
        date = sdt.parse(formatFrom);

    } catch (Exception e) {
        e.printStackTrace();
}
return sdf.format(date);

}