Material Design for Old Schoolers

•

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Nowadays, we as android developers suffer serious problems regarding android fragmentation if we wanna use Material Design. In this talk we will learn how to make backward compatibility easier when applying material design on older devices. Welcome to the old school world of Material Design.

Material for old
schoolers
Fernado Cejas - Souncloud
aka Cejakas
@fernando_cejas
fernando.cejas@souncloud.com
+FernandoCejas
Jorge J. Barroso - Karumi
aka Flipper83
@flipper83
jorge@karumi.com
+JorgeJBarroso

com.android.support:appcompat-v7
Themes
ActionBar and ToolBar
Transitions
Widget Tinting

Styling Material
<style name="BaseAppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> 
<item name="colorPrimary">@color/theme_default_primary</item> 
<item name="colorPrimaryDark">@color/theme_default_primary_dark</item> 
<item name="colorAccent">@color/theme_default_accent</item> 
<item name="colorControlHighlight">@color/theme_default_accent_light</item> 
</style>

Styling Material
values/themes.xml
!
<style name="AppTheme" parent="BaseAppTheme"> 
</style>
!
values-21/themes.xml
!
<style name="AppTheme" parent="BaseAppTheme"> 
<item name="android:windowContentTransitions">true</item> 
<item name="android:windowAllowEnterTransitionOverlap">true</item> 
<item name="android:windowAllowReturnTransitionOverlap">true</item> 
</style>

Be careful with some
Samsung devices
Proguard to the rescue!!!

com.android.support:recyclerview-v7
Bye Bye List view!
Extends from RecyclerAdapter
ViewHolder by default
Layout manager

com.android.support:recyclerview-v7
Change your dividers for
ItemDecoration

com.android.support:recyclerview-v7
Change your headers and footers
for ItemTypes.

com.android.support:recyclerview-v7
OnItemClick doesn’t exist any
more, delegate click functionality
to view holders

com.android.support:recyclerview-v7
Add animations with
ItemAnimator, it’s easy and it’s
cool.

com.android.support:palette-v7
Only in compat
Check null
Problems with some images

Toolbar vs ActionBar
ToolBar is a viewGroup
setSupportActionBar();
Extends from ActionBarActivity
Deactivate ActionBar via Theme

VectorDrawable vs ‘Font as icon’
You can use icon fonts for reduce
the number of assets on you app.
Keep performance!!! please!!

Transitions
ActivityOptionsCompat options = ActivityOptionsCompat. 
makeSceneTransitionAnimation((Activity) context, pairs); 
!
!
<style name="AppTheme" parent="BaseAppTheme"> 
<item name="android:windowContentTransitions">true</item> 
<item name="android:windowAllowEnterTransitionOverlap">true</item> 
<item name="android:windowAllowReturnTransitionOverlap">true</item> 
</style>

Bibliography
https://developer.android.com/training/material/compatibility.html
http://android-developers.blogspot.de/2014/10/implementing-material-design-in-your.html
http://antonioleiva.com/material-design-everywhere/
http://www.slideshare.net/arueggeberg/material-design-and-backwards-compatibility
https://github.com/navasmdc/MaterialDesignLibrary
https://github.com/markushi/android-ui
https://github.com/flipper83/transition-old-school

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Material Design for Old Schoolers

1. Material for old schoolers Fernado Cejas - Souncloud aka Cejakas @fernando_cejas fernando.cejas@souncloud.com +FernandoCejas Jorge J. Barroso - Karumi aka Flipper83 @flipper83 jorge@karumi.com +JorgeJBarroso

2. Material is cool

3. What happens with old schoolers

4. What google provides?

5. com.android.support:appcompat-v7 Themes ActionBar and ToolBar Transitions Widget Tinting

6. Styling Material <style name="BaseAppTheme" parent="Theme.AppCompat.Light.DarkActionBar">  <item name="colorPrimary">@color/theme_default_primary</item>  <item name="colorPrimaryDark">@color/theme_default_primary_dark</item>  <item name="colorAccent">@color/theme_default_accent</item>  <item name="colorControlHighlight">@color/theme_default_accent_light</item>  </style>

7. Styling Material values/themes.xml ! <style name="AppTheme" parent="BaseAppTheme">  </style> ! values-21/themes.xml ! <style name="AppTheme" parent="BaseAppTheme">  <item name="android:windowContentTransitions">true</item>  <item name="android:windowAllowEnterTransitionOverlap">true</item>  <item name="android:windowAllowReturnTransitionOverlap">true</item>  </style>

8. Be careful with some Samsung devices Proguard to the rescue!!!

9. Tint doesn’t work on custom views!!

10. com.android.support:recyclerview-v7 Bye Bye List view! Extends from RecyclerAdapter ViewHolder by default Layout manager

11. com.android.support:recyclerview-v7 Change your dividers for ItemDecoration

12. com.android.support:recyclerview-v7 Change your headers and footers for ItemTypes.

13. com.android.support:recyclerview-v7 OnItemClick doesn’t exist any more, delegate click functionality to view holders

14. com.android.support:recyclerview-v7 Add animations with ItemAnimator, it’s easy and it’s cool.

15. com.android.support:cardview-v7

16. com.android.support:palette-v7 Only in compat Check null Problems with some images

17. Toolbar vs ActionBar ToolBar is a viewGroup setSupportActionBar(); Extends from ActionBarActivity Deactivate ActionBar via Theme

18. VectorDrawable vs ‘Font as icon’ You can use icon fonts for reduce the number of assets on you app. Keep performance!!! please!!

19. Transitions ActivityOptionsCompat options = ActivityOptionsCompat.  makeSceneTransitionAnimation((Activity) context, pairs);  ! ! <style name="AppTheme" parent="BaseAppTheme">  <item name="android:windowContentTransitions">true</item>  <item name="android:windowAllowEnterTransitionOverlap">true</item>  <item name="android:windowAllowReturnTransitionOverlap">true</item>  </style>

21. Bibliography https://developer.android.com/training/material/compatibility.html http://android-developers.blogspot.de/2014/10/implementing-material-design-in-your.html http://antonioleiva.com/material-design-everywhere/ http://www.slideshare.net/arueggeberg/material-design-and-backwards-compatibility https://github.com/navasmdc/MaterialDesignLibrary https://github.com/markushi/android-ui https://github.com/flipper83/transition-old-school

22. Q&A

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Material Design for Old Schoolers

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