Java Time Kotlin extension functions.
- val dateTimeFormatter = DateTimeFormatter.ofPattern("yyyyMMdd")
- val date = LocalDate.parse(dateText, dateTimeFormatter)
+ val date = dateText.toLocalDate("yyyyMMdd")
- val dateFormatter = DateTimeFormatter.ofPattern("MM/dd/yyyy")
- print(dateFormatter.format(date))
+ print(date.print("MM/dd/yyyy"))
- if (ChronoUnit.YEARS.between(dateOfBirth, LocalDate.now()) < 18) {
+ if (dateOfBirth.getYearDifference(LocalDates.today) < 18) {
- val zoneId = ZoneId.of("America/Los_Angeles")
+ val zoneId = ZoneIds.AMERICA_LOS_ANGELESConvert strings into Java Time objects with ease
val result = "01:30 AM".toLocalTime()
val result = "2021-06-07".toLocalDate()
val result = "06/07/2021".toLocalDate(format = "MM/dd/yyyy")
val result = "2024-11-15T12:34:56.123456Z".toLocalDateTime() // handles fractional seconds that Java Time doesn't
val result = "2021-10-04T10:10:00+0000".toZonedDateTime()Create new date/time instances using factory functions
val result = LocalTimeFactory.new(hour = 7, minute = 30)
val result = LocalDateFactory.new(year = 2024, month = 11, day = 15)
val result = LocalDateTimeFactory.new(year = 2024, month = 11, day = 15)
val result = ZonedDateTimeFactory.new(year = 2024, month = 11, day = 15, zoneId = ZoneIds.AMERICA_LOS_ANGELES)Easily convert legacy date objects to Java Time
val result = Date().toLocalDateTime()
val result = GregorianCalendar().toZonedDateTime()Compare dates and times at various granularities
// Year
val result = dateA.compareYear(dateB)
val result = dateA.isBeforeYear(dateB)
// Month
val result = dateA.compareMonth(dateB)
val result = zonedDateA.getMonthDifference(zonedDateB) // auto-conversion to same time zone for expected results
val result = dateA.isEqualMonth(dateB)
// Day
val result = dateA.compareDay(dateB)
val result = dateA.getDayDifference(dateB)
val result = dateA.isAfterEqualDay(dateB)
// Time
val result = dateA.compareTime(dateB)
val result = dateA.getMinuteDifference(dateB)
val result = dateA.isAfterEqualTime(dateB)Print dates and times using a custom format
val date = "2021-07-06".toZonedDateTime()
val result = date.print(format = "MM/dd/yyyy")Query and transform date/time attributes
val result = date.isAtStartOfDay()
val result = date.getDaysInMonth()
val result = date.atStartOfDay()
val result = date.getLast(DayOfWeek.FRIDAY)
val result = date.getNext(DayOfWeek.MONDAY)Quickly access commonly used dates
val result = LocalDates.startOfYear()
val result = LocalDateTimes.tomorrow()
val result = ZonedDateTimes.nextMonday()Add the following to your module’s build.gradle:
repositories {
mavenCentral()
}
dependencies {
implementation("org.eljabali.sami.javatimefun:javatimefun:4.0.0")
} For Android
In addition to the above, you need to desugar your module:
- Ensure you're using Gradle Plugin 4.0.0+.
- Update module
build.gradle:
android {
defaultConfig {
// Required when setting minSdkVersion to 20 or lower
multiDexEnabled true
}
compileOptions {
// Flag to enable support for the new language APIs
coreLibraryDesugaringEnabled true
// Sets Java compatibility to Java 8
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
}For more information on Android desugaring click here.
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