ricknout / android-mdc-theming

Sample code used for a series of Medium posts on Material Components for Android

MDC Theming

Sample code used for a series of Medium posts on Material Components for Android

Intro: Setting up a Material Components theme for Android

https://medium.com/over-engineering/setting-up-a-material-components-theme-for-android-fbf7774da739

Part 1: Hands-on with Material Components for Android: Bottom App Bar

https://medium.com/over-engineering/hands-on-with-material-components-for-android-bottom-app-bar-28835a1feb82

Part 2: Hands-on with Material Components for Android: Bottom Navigation

https://medium.com/over-engineering/hands-on-with-material-components-for-android-bottom-navigation-aae2aa9066be

Part 3: Hands-on with Material Components for Android: Bottom Sheets

https://medium.com/over-engineering/hands-on-with-material-components-for-android-bottom-sheet-970c5f0f1840

Part 4: Hands-on with Material Components for Android: Buttons

https://medium.com/over-engineering/hands-on-with-material-components-for-android-buttons-76fa1a92ec0a

Part 5: Hands-on with Material Components for Android: Chips

https://medium.com/over-engineering/hands-on-with-material-components-for-android-chips-21dc67c8b956

Part 6: Hands-on with Material Components for Android: Cards

https://medium.com/over-engineering/hands-on-with-material-components-for-android-cards-311b00a5ea3

Part 7: Hands-on with Material Components for Android: Dialogs

https://medium.com/over-engineering/hands-on-with-material-components-for-android-dialogs-75c6d726f83a

Part 8: Hands-on with Material Components for Android: Selection Controls

https://medium.com/over-engineering/hands-on-with-material-components-for-android-selection-controls-a2cf17ea4473

More coming soon...

android-mdc-theming's Issues

UI bug in Scrolling demo

Good day,
your UI setup doesn't adhere to the device measurement guidelines. Please see attached video, the scrolling demo gets jumbled up with the System Bar:

device-2019-11-09-180344.mp4.zip

round corners not working

Hello,

I tried to follow the tutorial as per the medium comment here . But still I'm not getting round corners. I made sure I extended the BottomSheetDialog thru my xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="AppTheme.BottomSheet" parent="Theme.MaterialComponents.DayNight" />

    <style name="AppTheme.BottomSheet.Themed" parent="Theme.MaterialComponents.DayNight.NoActionBar">
        <!-- Global color attributes -->
        <item name="colorPrimary">@color/color_primary</item>
        <item name="colorPrimaryVariant">@color/color_primary_variant</item>
        <item name="colorOnPrimary">@color/color_on_primary</item>
        <item name="colorSecondary">@color/color_secondary</item>
        <item name="colorSecondaryVariant">@color/color_secondary_variant</item>
        <item name="colorOnSecondary">@color/color_on_secondary</item>
        <item name="colorError">@color/color_error</item>
        <item name="colorOnError">@color/color_on_error</item>
        <item name="colorSurface">@color/color_surface</item>
        <item name="colorOnSurface">@color/color_on_surface</item>
        <item name="android:colorBackground">@color/color_background</item>
        <item name="colorOnBackground">@color/color_on_background</item>
        <item name="android:statusBarColor">@color/color_status_bar</item>
        <!-- Global type attributes -->
        <item name="fontFamily">@font/roboto_mono</item>
        <item name="android:fontFamily">@font/roboto_mono</item>
        <!-- Global shape attributes -->
        <item name="shapeAppearanceSmallComponent">@style/AppShapeAppearance.SmallComponent</item>
        <item name="shapeAppearanceMediumComponent">@style/AppShapeAppearance.MediumComponent</item>
        <item name="shapeAppearanceLargeComponent">@style/AppShapeAppearance.LargeComponent</item>
        <!-- Bottom Sheet widget style attributes -->
        <item name="bottomSheetStyle">@style/AppStandardBottomSheet</item>
        <item name="bottomSheetDialogTheme">@style/AppModalBottomSheet</item>
    </style>

    <style name="AppStandardBottomSheet">
        <item name="shapeAppearance">?attr/shapeAppearanceLargeComponent</item>
        <item name="backgroundTint">?attr/colorSecondary</item>
        <item name="android:elevation">8dp</item>
        <item name="behavior_hideable">false</item>
        <item name="behavior_draggable">true</item>
        <item name="behavior_skipCollapsed">false</item>
        <item name="behavior_peekHeight">80dp</item>
        <item name="behavior_fitToContents">false</item>
        <item name="behavior_halfExpandedRatio">0.5</item>
        <item name="behavior_expandedOffset">0</item>
    </style>

    <style name="AppModalBottomSheet" parent="ThemeOverlay.MaterialComponents.DayNight.BottomSheetDialog">
        <item name="bottomSheetStyle">@style/ModalBottomSheet</item>
    </style>

    <style name="ModalBottomSheet" parent="Widget.MaterialComponents.BottomSheet.Modal">
        <!-- Apply attributes here -->
    </style>
</resources>

But still, I'm not seeing the round corners

Question: is BottomSheetDialogFragment shown small on landscape, on purpose?

I've noticed that if you show the BottomSheetDialogFragment via the sample, by clicking on "show modal bottom sheet", while on landscape , it gets shown much smaller:

Is this on purpose?
Why does it occur?
Is there an official way to handle this? To know if it's in this state? Is it possible to expand it by default?

The only thing I've found about it, is a workaround as such:
https://stackoverflow.com/a/55713263/878126
but it's not an official solution...

Question: is it possible to use a theme based on OS settings?

On Android 8.1 (and maybe 9.0) there is a way to set a wallpaper or live wallpaper that will (try to) change the theme of the OS, making it dark or not.

Is it possible to adjust the UI based on it? If so, how can I do it and detect the theme?

I know that on Android Q it should be possible, but what about previous versions?

Bug on "chips" sample: the EditText doesn't allow to remove the chip right away

When you go to this:

And then you press backspace, it won't go away. You need to press it multiple times.

See video:
device-2019-05-23-124415.zip

Can the chips have dynamic text other than "ChipDrawable"?

Hi,
Wonderful tutorial! The android documentation is particularly lacking and your project merges that gap.
In the file chip.xml the text seems hardcoded i.e. "ChipDrawable." Is this by design or can it be changed? I tried modifying chip.text but it made no difference.

Request: add sample for using ExtendedFloatingActionButton

This:

https://material.io/develop/android/components/extended-floating-action-button/

Question: is it possible to use ExtendedFloatingActionButton to have a progress bar within?

This way, it can have multiple states for doing something, and an animation between the states.
Example:

1. "Download" (press to initialize downloading of something)
2. progress bar (to show the download progress)
3. "Retry" (failed to download, press again to start)
4. "Done" (icon of "V" , to show that it's done).