[Dialogs] Full screen dialog

[eric-labelle]

The full screen dialog described on material design website is not available and does not seem to be on the roadmap either.

Do you have any plans on adding this in a near future or is it expected for us to use the setView() with a custom DialogFragment?

[dsn5ft]

The animation there can be achieved with the new MaterialContainerTransform transition class (docs), using either a full-screen Fragment or Activity. That might be easier than trying to get a full-screen DialogFragment or Dialog working. Can you give that a try and let us know if you have any more specific questions about that potential setup?

[VincentJoshuaET]

open class FullScreenDialogFragment : DialogFragment() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setStyle(STYLE_NORMAL, R.style.FullScreenDialog)
    }

    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
        val dialog = super.onCreateDialog(savedInstanceState)
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE)
        return dialog
    }

    override fun onStart() {
        super.onStart()
        dialog?.window?.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
    }
}

<style name="FullScreenDialog" parent="Theme.MaterialComponents.DayNight.Dialog">
        <!-- Customize your theme here. -->
        <item name="android:windowBackground">@android:color/white</item>
        <item name="android:windowIsFloating">false</item>
</style>

I use this with Navigation Component so that the previous fragment does not get destroyed.