A collection of useful Kotlin extension for Android

Install

Add to gradle in allprojects

maven { url 'https://jitpack.io' }

then add this

compile 'com.github.matteocrippa:karamba:1.2.0'

Usage

Karamba provides you a list of different and useful extensions for your project, here the list organized by the type extended.

General

• support(apiVersion), lambda that allow you to run code only if current SDK is up to specified one
• supportKitkat(), lambda that checks if kitkat is supported and run the code
• supportLollipop(), lambda that checks if lollipop is supported and run the code

Bitmap

• base64(), produces a base64 representation of the current bitmap
• resize(height, width), resize the current bitmap to new format

Boolean

• toggle(), handle the bool as a toogle changing the value to opposite one, then the new value is returned (not yet possible to change this)
• random(), returns a random boolean value, then the new value is returned (not yet possible to change this)

Date

• convertTo(format), converts current date to a custom format provided as argument (eg. dd-MM-yy HH:mm)
• toCalendar(), converts current date to Calendar
• isFuture(), returns true if date is in the future
• isPast(), returns true if date is in the past
• isToday(), returns if current date is today
• isTomorrow(), returns if current date is tomorrow
• isYesterday(), returns if current date is yesterday
• today(), returns today's date
• tomorrow(), returns tomorrow's date
• yesterday(), returns yesterday's date
• hour(), returns current date hour as number
• minute(), returns current date minutes as number
• second(), returns current date seconds as number
• month(), returns current date month as number
• monthName(), returns current date month as long name
• year(), returns current date year as number
• day(), returns current date day as number
• dayOfWeek(), returns current date day of the week as number
• dayOfWeekName(), returns current date weekday as string
• dayOfYear(), returns current date day of year as number

Double

• localCurrency(currency), converts current double to the currency format passed as argument (eg. EUR)
• celsiusToFahrenheit(), converts current double to fahrenheit
• fahrenheitToCelsius(), converts current double to celsius

Drawable

• toBitmap(), converts the current drawable in Bitmap

Int

• readableDistanceFromMeters(), converts an int amount of meters in a readable meter, kilometers distance
• commaSeparatedId(), converts an array of int, in a string of comma separated items
• random(), provides a random number in the range provided (eg. (0..10).random())

String

• isValidEmail(), returns if current string is a valid email
• isUrl(), returns if current string is a valid url
• isNumeric(), returns if current string contains a number
• isPhoneNumber(), returns if current string contains a phone number
• random(lenght), returns a random string of provided length
• toBitmap(), convert current base64 string into Bitmap
• ellipsize(chars), ellipsizes the current string, truncating at defined amount of characters
• toDate(format), converts current string in a Date object using the provided format
• plainText(), removes all html formatting from current string
• toCamelCase(), camel case the current string current string

View

• toBitmap(), converts current view into Bitmap

Credits

Icon is taken by free emojii set by Vincent Le Moign