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Fix Alarm not showing remainder properly

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This commit is contained in:
Brandon Presley 2022-07-04 23:09:19 +12:00
parent 79b76c3a12
commit 4766fc408b
1 changed files with 11 additions and 6 deletions
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11
Alarm.tsx
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@ -7,22 +7,27 @@ export default function Alarm() {
const [show, setShow] = useState(false); const [show, setShow] = useState(false);
const [seconds, setSeconds] = useState(0); const [seconds, setSeconds] = useState(0);
const [minutes, setMinutes] = useState(0); const [minutes, setMinutes] = useState(0);
let intervalId: number;
useEffect(() => { useEffect(() => {
intervalId = setInterval(async () => { if (!show) return;
let intervalId: number;
(async () => {
const next = await AsyncStorage.getItem('nextAlarm'); const next = await AsyncStorage.getItem('nextAlarm');
if (!next) return; if (!next) return;
const ms = new Date(next).getTime() - new Date().getTime(); const ms = new Date(next).getTime() - new Date().getTime();
if (ms <= 0) return; if (ms <= 0) return;
let secondsLeft = ms / 1000; let secondsLeft = ms / 1000;
setSeconds(Math.floor(secondsLeft % 60));
setMinutes(Math.floor(secondsLeft / 60));
intervalId = setInterval(() => {
secondsLeft--; secondsLeft--;
if (secondsLeft <= 0) return clearInterval(intervalId); if (secondsLeft <= 0) return clearInterval(intervalId);
setSeconds(Math.floor(secondsLeft % 60)); setSeconds(Math.floor(secondsLeft % 60));
setMinutes(Math.floor(secondsLeft / 60)); setMinutes(Math.floor(secondsLeft / 60));
}, 1000); }, 1000);
})();
return () => clearInterval(intervalId); return () => clearInterval(intervalId);
}, []); }, [show]);
return ( return (
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