Make time selections in Android by typing them

NumberPadTimePicker

As you type or remove digits, number keys and the "OK" button are enabled or disabled to prevent you from setting invalid times. The time separator (e.g. ":") character is dynamically formatted into the correct position.

Available as an alert dialog, a bottom sheet dialog, and as a plain View.

Sample App

The sample app demos some built-in themes. You can also dynamically customize your own theme with a
limited color palette.

Source code

Installation

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

dependencies {
    compile 'com.github.philliphsu:numberpadtimepicker:1.1.1'
}

Usage

Use as Dialog

Implement the android.app.TimePickerDialog.OnTimeSetListener interface.

// The TimePicker returned in this callback is a dummy object. It is not
// the actual NumberPadTimePicker used by this library.
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
    // Do something with the time chosen by the user
}

Obtain an instance of NumberPadTimePickerDialog or BottomSheetNumberPadTimePickerDialog.
You may pass in an optional style resource to use as the dialog's theme. Alternatively, you can
theme the dialog programmatically after you've obtained an instance. See Themes and Styles for a
guide to styling the dialog.

NumberPadTimePickerDialog dialog = new NumberPadTimePickerDialog(
    context, R.style.MyNptpAlertDialogTheme, listener, is24HourMode);

BottomSheetNumberPadTimePickerDialog dialog = new BottomSheetNumberPadTimePickerDialog(
    context, R.style.MyNptpBottomSheetDialogTheme, listener, is24HourMode);

If you want to use the dialog in a DialogFragment, use the support library's
android.support.v4.app.DialogFragment. See the Pickers guide for more information.

Use as View

Using NumberPadTimePicker as a View requires more care to ensure it is sized appropriately
in your layouts. As of version 1.1.0, NumberPadTimePicker is not optimized for small screen
heights (for example, in landscape). If you are affected by this, you'll need to account for this
in a way that is appropriate for your use case.

Add a NumberPadTimePicker to your layout like any other View. However, by itself, it is not
very useful as a widget for time input.

Define an OK Button

For a NumberPadTimePicker to actually be useful for time input, you need to define an "OK"
button somewhere in your screen. For example, this can be a View in your layout or a
MenuItem in your app bar.

For your convenience, this library provides ready-to-use "OK" buttons you can add to the
NumberPadTimePicker instead of defining your own. These are the same buttons that are used
in the dialogs.

In your XML layout, specify the nptp_numberPadTimePickerLayout attribute on your
NumberPadTimePicker with one of these values:

Table 1. Values for the nptp_numberPadTimePickerLayout attribute

<com.philliphsu.numberpadtimepicker.NumberPadTimePicker
    xmlns:app="http://schemas.android.com/apk/res-auto"
    app:nptp_numberPadTimePickerLayout=["standalone" | "alert" | "bottomSheet"]
    ... 
    />

Register OK Button Callbacks

View okButton = ...

NumberPadTimePicker timePicker = ...
timePicker.setOkButtonCallbacks(new NumberPadTimePicker.OkButtonCallbacks() {
    @Override
    public void onOkButtonEnabled(boolean enabled) {
        // If you are using the provided OK buttons, you do not need to do anything.
        okButton.setEnabled(enabled);
    }

    @Override
    public void onOkButtonClick(NumberPadTimePicker view, int hourOfDay, int minute) {
        // Do something with the time chosen by the user
    }
});

// If you are using the provided OK buttons, you do not need to set this.
okButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        timePicker.confirmTimeSelection();  // Calls your onOkButtonClick() callback
    }
});

If you are using the alert layout, you may also want to set a click listener on the provided
cancel button:

timePicker.setCancelButtonClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        // Respond to cancel click 
    }
});

Themes and Styles

This section describes how to style the NumberPadTimePicker view, which is used in the dialogs
and is available to use in your own layouts.

You can style the view in XML or in code.

NumberPadTimePickerDialog, BottomSheetNumberPadTimePickerDialog, and the
NumberPadTimePicker view all have a method called getThemer(). This returns an object allowing
you to theme the time picker in code by chaining setters.

There are two return types to be aware of: NumberPadTimePickerThemer and
BottomSheetNumberPadTimePickerThemer.

• NumberPadTimePickerDialog returns a NumberPadTimePickerThemer.
• BottomSheetNumberPadTimePickerDialog returns a BottomSheetNumberPadTimePickerThemer.
• NumberPadTimePicker returns a NumberPadTimePickerThemer, which can possibly be
  casted to BottomSheetNumberPadTimePickerThemer.

The following table lists styleable attributes available in all layouts. These correspond
to setters in NumberPadTimePickerThemer.

Table 2. Common styleable attributes

The following table lists styleable attributes available only for the bottomSheet layout.
These correspond to setters in BottomSheetNumberPadTimePickerThemer.

Table 3. Bottom sheet styleable attributes

If you are using NumberPadTimePicker in your own layouts, you may find it convenient to specify
one of the following styles. These styles adjust layout_width and layout_height for multiple
size qualifiers.

• NPTP_NumberPadTimePickerStandaloneStyle_FillHeight
• NPTP_NumberPadTimePickerStandaloneStyle_ExactHeight
• NPTP_NumberPadTimePickerAlertStyle_FillHeight
• NPTP_NumberPadTimePickerAlertStyle_ExactHeight
• NPTP_NumberPadTimePickerBottomSheetStyle_FillHeight
• NPTP_NumberPadTimePickerBottomSheetStyle_ExactHeight

<com.philliphsu.numberpadtimepicker.NumberPadTimePicker
    style="@style/NPTP_NumberPadTimePickerStandaloneStyle_FillHeight"
    ... 
    />

You can create a theme for a dialog or Activity that uses NumberPadTimePicker.

Create a style resource using the attributes in Table 2 and Table 3. There are default
style resources that you may inherit from:

• NPTP_Base_NumberPadTimePickerStandaloneStyle
• NPTP_Base_NumberPadTimePickerAlertStyle
• NPTP_Base_NumberPadTimePickerBottomSheetStyle

Set this style resource in your theme using the nptp_numberPadTimePickerStyle attribute.

<style name="MyNptpAlertStyle" parent="NPTP_Base_NumberPadTimePickerAlertStyle">
    ...
</style>

<style name="MyNptpAlertDialogTheme" parent="Theme.AppCompat.Dialog.Alert">
    <item name="nptp_numberPadTimePickerStyle">@style/MyNptpAlertStyle</item>
</style>

<style name="MyNptpBottomSheetStyle" parent="NPTP_Base_NumberPadTimePickerBottomSheetStyle">
    ...
</style>

<style name="MyNptpBottomSheetDialogTheme" parent="Theme.Design.BottomSheetDialog">
    <item name="nptp_numberPadTimePickerStyle">@style/MyNptpBottomSheetStyle</item>
</style>

Obtain an instance of the dialog as described in Use as Dialog. If you don't want to pass
the theme to the dialog's constructor, you can instead specify it in your Activity's theme.

<style name="AppTheme" parent="Theme.AppCompat">
    <item name="nptp_numberPadTimePickerAlertDialogTheme">@style/MyNptpAlertDialogTheme</item>
    <item name="nptp_numberPadTimePickerBottomSheetDialogTheme">@style/MyNptpBottomSheetDialogTheme</item>
</style>

GitHub