比较不同的时间然后显示错误消息android

Question

我大部分时间都花了一天的时间进行两次比较但直到现在都没有值得的结果。我基本上试图比较两个不同的时间，我想避免第一次存储数据ID少于第二次，但我不能。另外，相等部分工作顺利但第二部分不工作

@Override
        public void onTimeSet(int id, TimePicker view, int hourOfDay, int minute) throws ParseException {
            String AM_PM = " AM";
            String pattern = "HH:mm";
            SimpleDateFormat format = new SimpleDateFormat(pattern);

            String mm_precede = "";
            if (hourOfDay >= 12) {
                AM_PM = " PM";
                if (hourOfDay >=13 && hourOfDay < 24) {
                    hourOfDay -= 12;
                }
                else {
                    hourOfDay = 12;
                }
            } else if (hourOfDay == 0) {
                hourOfDay = 12;
            }
            if (minute < 10) {
                mm_precede = "0";
            }

     if (id == 1 && id ==2) {
         Date date1 = format.parse(sTimeApp.getText().toString());
         Date date2 = format.parse(eTimeApp.getText().toString());
         DateTime da1 = new DateTime(date1);
         DateTime da2 = new DateTime(date2);
         System.out.println("Date" + date1);
         System.out.println("Date" + date1);
         if (da1.equals(da2) ){
             Toast.makeText(this, "Error , Time should be different ", Toast.LENGTH_SHORT).show();
             return;
         }else if (da1.isBefore(da2)){
             Toast.makeText(this, "Error , Time should be different ", Toast.LENGTH_SHORT).show();
             return;
         }

     }


    //        if (sTimeApp.equals(eTimeApp) ) {
    //            Toast.makeText(this, "Error , Time should be different ", Toast.LENGTH_SHORT).show();
    //            return;
    //        }

            if (id == 1) {
                if (minute <= 9) {
                    sTimeApp.setText(hourOfDay + ":" +  mm_precede + minute + AM_PM);
                } else {

                    sTimeApp.setText(hourOfDay + ":" + mm_precede + minute + AM_PM);
                }
            } else if (id == 2) {
                if (minute <= 9) {
                    eTimeApp.setText(hourOfDay + ":" +  mm_precede + minute + AM_PM);
                } else {
                    eTimeApp.setText(hourOfDay + ":" + mm_precede + minute + AM_PM);
                }
            }

        }
    }