https://github.com/brownsoo/android-vertically-scrollable-calendar-prototype
세로형 무한 스크롤 달력 프로토타입 (안드로이드)
https://github.com/brownsoo/android-vertically-scrollable-calendar-prototype
android calendar
Last synced: about 2 months ago
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세로형 무한 스크롤 달력 프로토타입 (안드로이드)
- Host: GitHub
- URL: https://github.com/brownsoo/android-vertically-scrollable-calendar-prototype
- Owner: brownsoo
- License: apache-2.0
- Created: 2015-09-30T11:22:36.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2023-11-01T11:15:44.000Z (over 1 year ago)
- Last Synced: 2025-03-28T05:11:18.436Z (2 months ago)
- Topics: android, calendar
- Language: Java
- Homepage:
- Size: 6.44 MB
- Stars: 9
- Watchers: 1
- Forks: 6
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
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README
# Android Vertically Scrollable Calendar Workout
[](https://codebeat.co/projects/github-com-brownsoo-android-vertically-scrollable-calendar-prototype-master)
This is the Android sample project making the Vertically scrollable calendar for study.
## 세로형 무한 스크롤 달력 프로토타입 (안드로이드)
이 저장소는 안드로이드에서 세로 스크롤이 가능한 달력을 만들기 위해 만든 목업샘플입니다.
### Check logic point 1
특정 날짜와 페이지 위치를 동기화하기 위해 기본 날짜를 만듭니다. 그리고 수천 페이지 중간에 기본 위치도 생성합니다.
```java
/** Default year to calculate the page position */
final static int BASE_YEAR = 2015;
/** Default month to calculate the page position */
final static int BASE_MONTH = Calendar.JANUARY;
/** Calendar instance based on default year and month */
final Calendar BASE_CAL;
/** Page numbers to reuse */
final static int PAGES = 5;
/** Loops, I think 1000 may be infinite scroll. */
final static int LOOPS = 1000;
/** position basis */
final static int BASE_POSITION = PAGES * LOOPS / 2;
...
Calendar base = Calendar.getInstance();
base.set(BASE_YEAR, BASE_MONTH, 1);
BASE_CAL = base;
...
```
### Check logic point 2
그런 다음 페이지 위치별로 특정 날짜를 얻을 수 있습니다.
```java
public YearMonth getYearMonth(int position) {
Calendar cal = (Calendar)BASE_CAL.clone();
cal.add(Calendar.MONTH, position - BASE_POSITION);
return new YearMonth(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH));
}
```
### Check logic point 3
주어진 날짜별로 특정 페이지 위치를 얻을 수 있습니다.
```java
/**
* Get the page position by given date
* @param year 4 digits number of year
* @param month month number
* @return page position
*/
public int getPosition(int year, int month) {
Calendar cal = Calendar.getInstance();
cal.set(year, month, 1);
return BASE_POSITION + howFarFromBase(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH));
}
/**
* How many months exist from the base month to the given values?
* @param year the year to compare with the base year
* @param month the month to compare with the base month
* @return counts of month
*/
private int howFarFromBase(int year, int month) {
int disY = (year - BASE_YEAR) * 12;
int disM = month - BASE_MONTH;
return disY + disM;
}
```
In this project, I embed [`VerticalViewPager`](https://github.com/castorflex/VerticalViewPager) for just vertical view pager. And I refer to ['SimpleInfiniteCarousel'](https://github.com/mrleolink/SimpleInfiniteCarousel) to make a simple infinite carousel with ViewPager on Android.
You can see sample [video](https://youtu.be/sHpk8f0WY7U).