java - 将字符串转换为时间格式

Question

我想设置一个闹钟时间。但是当我从数据库获取时间值时，它是字符串格式的。所以请告诉我我可以为此做什么。 我是新来的，在 Android 中请忽略任何错误 代码是

String s= names.get(i).getTime();
System.out.println("Value: " + s);
//value of s is 11:50 AM
Intent intent = new Intent(getBaseContext(), AlarmReceiver.class);
PendingIntent pendingIntent =PendingIntent.getBroadcast(getBaseContext(),     
RQS_1, intent, 0);
AlarmManager alarmManager=(AlarmManager)getSystemService(Context.ALARM_SERVICE);    
alarmManager.set(AlarmManager.RTC_WAKEUP, s.getTimeInMillis(), pendingIntent);

Answer 1

执行此操作，您可以将字符串转换为 timeinMillis:

String givenDateString =s;
            Log.d("Pana", "The value of s is " + s);
            SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy HH:mm", Locale.ENGLISH);
            sdf.setTimeZone(TimeZone.getTimeZone("GMT+0530"));
            try {
                Date mDate = sdf.parse(givenDateString);
                timeInMilliseconds = mDate.getTime();
                Log.d("Pana ", "Date in milli :: " + timeInMilliseconds);

                Log.i("TAG", "System.currentTimeMillis() = " + System.currentTimeMillis());
            } catch (ParseException e) {
                e.printStackTrace();
            }

希望这有帮助。