PrimeDatePicker :zap:

Firstly, PrimeDatePicker is a tool that provides picking a single day, multiple days, and a range of days. Secondly, you can use internal elements like MonthView and CalendarView as stand-alone views in your projects.

Multiple Days | Civil BottomSheet | Dark	Range of Days | Persian BottomSheet | Light	Single Day | Hijri Dialog | Light	Goto Feature | Japanese Dialog | Dark

Table of Contents

• Core Logic
• Main Characteristics
• Download
• Usage
  • Java Example
  • Builder Configurations
  • Input Calendar Configurations
• Customizing Theme
  • Customizing Texts
• Stand-Alone Views
• Change Log

Core Logic

The ❤️ of this library is provided by PrimeCalendar.

Main Characteristics

• Endless Scrolling
• Fully Customizable Views & Themes
• Align With Material Design
• Fluent UI
• RTL Support
• Landscape Support
• Various Calendar Types
• Various Date Picking Strategies
• Dialog & BottomSheet Presentations
• Fast Goto

:dart: Download SampleApp.apk

Download

PrimeDatePicker is available on MavenCentral to download using build tools systems. Add the following lines to your build.gradle file:

dependencies {
    implementation 'com.aminography:primedatepicker:3.6.0'
    implementation 'com.aminography:primecalendar:1.7.0'
}

Usage

To enjoy PrimeDatePicker, create an instance using a builder pattern in simple 4 steps.

1. Decide on BottomSheet or Dialog representation along with an initial calendar:

   
   // To show a date picker with Civil dates, also today as the starting date
   val today = CivilCalendar()

val datePicker = PrimeDatePicker.bottomSheetWith(today) // or dialogWith(today)

2. Decide on picking strategy along with passing a proper callback:
```kotlin
val callback = SingleDayPickCallback { day ->
    // TODO
}

val today = CivilCalendar()

val datePicker = PrimeDatePicker.bottomSheetWith(today)
        .pickSingleDay(callback)  // or pickRangeDays(callback) or pickMultipleDays(callback)

3. Apply some optional configurations:

...

val datePicker = PrimeDatePicker.bottomSheetWith(today)
        .pickSingleDay(callback)
        .initiallyPickedSingleDay(pickedDay)
        ...

4. Build the date picker and show it:

   
   val callback = SingleDayPickCallback { day ->
   // TODO
   }

val today = CivilCalendar()

val datePicker = PrimeDatePicker.bottomSheetWith(today) .pickSingleDay(callback) .initiallyPickedSingleDay(pickedDay) .build()

datePicker.show(supportFragmentManager, "SOME_TAG")

<br/>

### Java Example

> Java
```java
SingleDayPickCallback callback = new SingleDayPickCallback() {
    @Override
    public void onSingleDayPicked(PrimeCalendar singleDay) {
        // TODO
    }
};

// To show a date picker with Japanese dates, also today as the starting date
PrimeCalendar today = new JapaneseCalendar();  

PrimeDatePicker datePicker = PrimeDatePicker.Companion.dialogWith(today)
    .pickSingleDay(callback)
    .build();

datePicker.show(getSupportFragmentManager(), "SOME_TAG");

Builder Configurations

There are several builder functions applying relevant configurations on the date picker.

Input Calendar Configurations

In addition to the builder functions, PrimeDatePicker receives some configurations from the input calendar. For example:

// shows a Persian calendar, but in English language, which leads to LTR direction
val calendar = PersianCalendar(Locale.ENGLISH).also {
    it.year = 1398                       // determines starting year
    it.month = 7                         // determines starting month
    it.firstDayOfWeek = Calendar.MONDAY  // sets first day of week to Monday
}

val datePicker = PrimeDatePicker.bottomSheetWith(calendar)
        ...
        .build()

Customizing Theme

PrimeDatePicker is fully customizable and you can tailor it to what you desire. Almost everything you see is customizable. For example:

• text sizes & colors
• background & element colors
• padding & distances
• font typeface
• string formatter
• calendar animations & transition parameters
• etc

In this way, a set of customizable theme factory classes are provided to specify theme parameters. By default, there are two concrete subclasses for the them factory:

• DarkThemeFactory
• LightThemeFactory

You can override their parameters, or inherit a class from, or make your own theme factory.

Here is an example of how to override theme parameters to customize it:

val themeFactory = object : LightThemeFactory() {

    override val typefacePath: String?
        get() = "fonts/Righteous-Regular.ttf"

    override val dialogBackgroundColor: Int
        get() = getColor(R.color.yellow100)

    override val calendarViewBackgroundColor: Int
        get() = getColor(R.color.yellow100)

    override val pickedDayBackgroundShapeType: BackgroundShapeType
        get() = BackgroundShapeType.ROUND_SQUARE

    override val calendarViewPickedDayBackgroundColor: Int
        get() = getColor(R.color.green800)

    override val calendarViewPickedDayInRangeBackgroundColor: Int
        get() = getColor(R.color.green400)

    override val calendarViewPickedDayInRangeLabelTextColor: Int
        get() = getColor(R.color.gray900)

    override val calendarViewTodayLabelTextColor: Int
        get() = getColor(R.color.purple200)

    override val calendarViewWeekLabelFormatter: LabelFormatter
        get() = { primeCalendar ->
            when (primeCalendar[Calendar.DAY_OF_WEEK]) {
                Calendar.SATURDAY,
                Calendar.SUNDAY -> String.format("%s😍", primeCalendar.weekDayNameShort)
                else -> String.format("%s", primeCalendar.weekDayNameShort)
            }
        }

    override val calendarViewWeekLabelTextColors: SparseIntArray
        get() = SparseIntArray(7).apply {
            val red = getColor(R.color.red300)
            val indigo = getColor(R.color.indigo500)
            put(Calendar.SATURDAY, red)
            put(Calendar.SUNDAY, red)
            put(Calendar.MONDAY, indigo)
            put(Calendar.TUESDAY, indigo)
            put(Calendar.WEDNESDAY, indigo)
            put(Calendar.THURSDAY, indigo)
            put(Calendar.FRIDAY, indigo)
        }

    override val calendarViewShowAdjacentMonthDays: Boolean
        get() = true

    override val selectionBarBackgroundColor: Int
        get() = getColor(R.color.brown600)

    override val selectionBarRangeDaysItemBackgroundColor: Int
        get() = getColor(R.color.orange700)
}

Using above theme, we can transform the light theme (left picture) to the right one.

Normal Light Theme	Customized Light Theme

Java Theme Customization Example

BaseThemeFactory themeFactory = new LightThemeFactory() {

@NotNull
@Override
public PrimeCalendarView.FlingOrientation getCalendarViewFlingOrientation() {
    return PrimeCalendarView.FlingOrientation.HORIZONTAL;
}

@Override
public int getSelectionBarBackgroundColor() {
    return super.getColor(R.color.green300);
}

// Other customizations...

};

<br/>

### Customizing Texts

If you want to change some texts in `PrimeDatePicker`, such as a button text, the current solution is to
define some strings in your project's `strings.xml` with equal name defined in the library's `strings.xml`, to override them.

<br/>

Stand-Alone Views
-----------------

To see how to use **`PrimeMonthView`** & **`PrimeCalendarView`**, [refer to wiki page](https://github.com/aminography/PrimeDatePicker/wiki#stand-alone-views) .

<br/>

Change Log
----------

The change log is available [here](https://github.com/aminography/PrimeDatePicker/wiki/Change-Log).

<br/>

License
--------

Copyright 2019 Mohammad Amin Hassani.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.