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POAndroid: Subtract minutes to my alarm
 

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  1. POAndroid: Subtract minutes to my alarm
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    <p>I'm making an alarm, get the current time as follows:</p> <pre><code>public String getAlarmTimeStringFive2db() { String timef2db = ""; if (alarmTime.get(Calendar.HOUR_OF_DAY) &lt;= 9) timef2db += "0"; timef2db += String.valueOf(alarmTime.get(Calendar.HOUR_OF_DAY)); timef2db += ":"; if (alarmTime.get(Calendar.MINUTE) &lt;= 9) timef2db += "0"; timef2db += String.valueOf(alarmTime.get(Calendar.MINUTE)); return timef2db; } ... public static long create(Alarm alarm) { ContentValues cv = new ContentValues(); cv.put(COLUMN_ALARM_ACTIVE, alarm.getAlarmActive()); cv.put(COLUMN_ALARM_TIME, alarm.getAlarmTimeStringFive2db()); ... public void setAlarmTime(String alarmTime) { String[] timePieces = alarmTime.split(":"); Calendar newAlarmTime = Calendar.getInstance(); newAlarmTime.set(Calendar.HOUR_OF_DAY, Integer.parseInt(timePieces[0])); newAlarmTime.set(Calendar.MINUTE, Integer.parseInt(timePieces[1])); newAlarmTime.set(Calendar.SECOND, 0); setAlarmTime(newAlarmTime); } </code></pre> <p>...</p> <p>This works fine, for example returns 5:35 ... all right.</p> <p>My problem is I want to subtract 5 minutes always on time. If the time is 5:35, I want the alarm time starts at 5:30.</p> <p>My problem is I do not know how to subtract those 5 minutes. I tried</p> <p>Calendar.MINUTE, Integer.parseInt(timePieces[1],5)</p> <p>Calendar.MINUTE, -5)</p> <p>...but nothing works</p> <p>I read this link <a href="https://stackoverflow.com/questions/11857251/set-alarm-to-alert-5-minutes-before-a-certian-time">Set Alarm To Alert 5 Minutes Before a certian Time</a> .. but I could not apply it to my code</p> <p>Can anyone tell me as subtracting 5 minutes of my alarm?</p> <p>thanks in advance</p> <p>Regards</p>
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    1. USSergio76
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    1. COyou mean you tried this code and it did't work: Calendar.getInstance().add(Calendar.MINUTE, -5);
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    2. CO@Moh.Sukhni exact
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      1. POAndroid: Subtract minutes to my alarm
      1. USSergio76
 

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