Android Jetpack Compose NumberPicker Widget Equivalent - kotlin

Question

What is the recommended solution for creating a NumberPicker Widget in Jetpack Compose? Similar to the image below. I am able to create an NumberPicker using an AndroidView within my composable but the view does not seem to allow flings or snap to position. Btw the UI below shows three NumberPickers placed in a row. It is not supposed to represent a DatePicker

Answer 1

By coincidence I've implemented a screen like that last week.
I can't share the whole code here, but basically what I did was:
Create a layout with a DatePicker (res/layout/date_picker.xml).
<DatePicker xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/datePicker"
android:theme="#style/DatePickerStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:calendarViewShown="false"
android:datePickerMode="spinner" />
Then, use it in your composable function.
#Composable
fun DatePicker(
onDateSelected: (Date) -> Unit
) {
AndroidView(
modifier = Modifier.fillMaxWidth(),
factory = { context ->
val view = LayoutInflater.from(context).inflate(R.layout.date_picker, null)
val datePicker = view.findViewById<DatePicker>(R.id.datePicker)
val calendar = Calendar.getInstance() // show today by default
datePicker.init(
calendar.get(Calendar.YEAR),
calendar.get(Calendar.MONTH),
calendar.get(Calendar.DAY_OF_MONTH)
) { _, year, monthOfYear, dayOfMonth ->
val date = Calendar.getInstance().apply {
set(year, monthOfYear, dayOfMonth)
}.time
onSelectedDateUpdate(date)
}
datePicker
}
)
}
Finally, use it in a ModalBottomSheetLayout
Editing my answer... Using a NumberPicker working as well...
AndroidView(
modifier = Modifier.fillMaxWidth(),
factory = { context ->
NumberPicker(context).apply {
setOnValueChangedListener { numberPicker, i, i2 -> }
minValue = 0
maxValue = 50
}
}
)
Here is the result.

Answer 2

I know maybe you are not looking for something like this. But since there is no such widget in compose yet and compose is all about making your way easier to build your own component. So Apart from android.widget NumberPicker, you can make something like this one. You can change the visualization more like the NumberPicker widget and add your callback and stuff.
Have you checked this one on github? ComposeNumberPicker.Kt

Answer 3

We are using this library in our compose project for number picker widget.
https://github.com/ChargeMap/Compose-NumberPicker