Factor out the material form control part of Input so it can be reused in non-text-editing scenarios

[tvolkert]

Currently, the DatePicker "launcher widget" is a button. This is a feature request from Customer Leafy to add the ability to make the launcher widget look like a text input (probably with a format string that displays the current date).

[tvolkert]

"It would be great to leave what the input field will launch to the client. We currently use input fields to launch all kinds of things: custom full-page pickers, date pickers and even Google Drive file picker.

All we are asking for here is an input field that retains the same semantics as the regular one (can display errors, hints, values etc) except for one key area: We should be able to install a tap handler instead of launching into a text edit mode with keyboard."

[tvolkert]

@mpcomplete @Hixie

[Hixie]

Yeah we should abstract out the part of Input that shows the hint, the error message, etc, into a component that can be re-used by Input and by this generic widget, and then also provide some specifically for time values and date values with a similar API to Input.

[mehmetf]

A few more thoughts on this:

• We recently fixed a bug in our native app where users were able to paste data into these launcher fields. We need these fields to be read only. No keyboard launch, no manual input, no copy/paste.
• We turn off text suggestions / auto correct so you don't get red squiggly lines for these elements.

If you are curious, this is the layout we currently use for launcher elements:

<android.support.design.widget.TextInputLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:auto="http://schemas.android.com/apk/res-auto"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  auto:hintEnabled="false">
  <EditText
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingTop="0dp"
    android:inputType="textNoSuggestions"
    android:textSize="@dimen/input_text_size"
    android:focusableInTouchMode="false"
    android:longClickable="false"
    android:hint="@string/select"
    android:textColorHint="@color/quantum_grey400"
    android:maxLines="1"/>
</android.support.design.widget.TextInputLayout>

• If material mandates a different design, I am up for presenting that to our UX and pushing it through. That is, we don't have to have an Input field to display this data. You could have regular text widget with a button whose label is configurable; or no button. Check out the due date etc fields for this form: