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Material Design: Material Time Picker in Kotlin

Material Time Picker for developer who do not like default Material Time Picker that difficult to use for most users

Maven

<dependency>
  <groupId>com.akexorcist</groupId>
  <artifactId>snap-time-picker</artifactId>
  <version>1.0.0</version>
</dependency>

Gradle

implementation 'com.akexorcist:snap-time-picker:1.0.0'

Feature

• iOS Time Picker like with Material Design style
• Some text & color customization
• Selectable time range support
• ViewModel support for event callback with LiveData (See example)

Usage

• Relevant class in SnapTimePicker
• SnapTimePickerDialog - Main Class
• TimeValue - Time data holder that contain hour and minute
• TimeRange - Time range data holder that contain the range of time with start (TimeValue) and end (TimeValue)

To use the SnapTimePicker you have to create the SnapTimePickerDialog from builder

val dialog = SnapTimePickerDialog.Builder().build()
dialog.show(supportFragmentManager, tag)

To custom some text and color in TimePickerDialog.

SnapTimePickerDialog.Builder().apply {
    setTitle(R.string.title)
    setPrefix(R.string.time_suffix)
    setSuffix(R.string.time_prefix)
    setThemeColor(R.color.colorAccent)
    setTitleColor(R.color.colorWhite)
}.build().show(supportFragmentManager, tag)

To set pre-selected time and time range in TimePickerDialog.

SnapTimePickerDialog.Builder().apply {
    setPreselectedTime(TimeValue(2, 34))
    setSelectableTimeRange(TimeRange(TimeValue(2, 15), TimeValue(14, 30)))
}.build().show(supportFragmentManager, tag)

For event callback from SnapTimePicker, you have assign the listener after build the SnapTimePickerDialog from builder.

SnapTimePickerDialog.Builder().apply {
    //
}.build().apply{
    setListener { hour, minute ->
        // Do something when user selected the time
    }
}.show(supportFragmentManager, tag)

But use listener does not good enough if the app can work in portrait and landscape. To support screen orientation, call useViewModel() in SnapTimePickerDialog then observe the event callback from SnapTimePicker's ViewModel from SnapTimePickerUtil

SnapTimePickerDialog.Builder().apply {
    useViewModel()
}.build().show(supportFragmentManager, SnapTimePickerDialog.TAG)
SnapTimePickerUtil.observe(this) { selectedHour: Int, selectedMinute: Int ->
    onTimePicked(selectedHour, selectedMinute)

That's the articleMaterial Design: Material Time Picker in Kotlin

That's it for the article Material Design: Material Time Picker in Kotlin this time, hopefully can be useful for all of you. well, see you in another article post.

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