What's new in Android M

Transcript

1. You should be looking at
   

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2. Hi!
   I’m Jérémie
   @jeremie_laval
   

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4. Android
   IDE
   tooling
   Android
   Component
   s Evangelis
   m
   A monkey?!
   

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5. Android
   Fanboy
   Android
   Fanboy
   Android
   Fanboy
   Banana!
   

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6. what’s new in
   Android M
   

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7. Android M Preview
   codename MNC
   Macadamia Nut Cookie
   (Marzipan?)
   (M&Ms?)
   

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8. Preview Availability
   

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9. Timeline
   A preview release ~every month
   Preview 1 Google I/O 2015
   Preview 2 July 16th
   Preview 3 August?
   Final release Late September
   

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10. Release Focus
    Polish
    Performance
    Battery savings
    7
    

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11. Platform Highlights
    New Permission Workflow
    Doze / App Standby
    Material Design Updates
    

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12. App Permissions
    

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13. Old Style
    

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14. Issues
    Prevent automatic updates
    Out-of-context
    Low user-engagement
    

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15. Advantage
    Total Developer Freedom
    
    

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16. The New System
    Low and high risk permission split
    → Only if your app targets M
    Contextualized asking for more
    Cope with refusal/revocation
    

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17. What you get
    Bluetooth Internet Network State
    NFC Vibrate Settings
    Flashlight Accounts Alarm
    …
    As declared in app manifest
    

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18. Asking for a cookie
    if (CheckSelfPermission (this, Manifest.Permission.Camera) != Permission.Granted) {

    if (ShouldShowRequestPermissionRationale (Manifest.Permission.Camera))

    Toast.MakeText (/* ... */);

    RequestPermissions (new string[] { Manifest.Permission.Camera }, RequestCamera);

    }
    public override void OnRequestPermissionsResult (int requestCode,

    string[] permissions,

    int[] grantResults)

    {

    if (requestCode == RequestCamera) {

    // Handle permission response

    }

    }
    

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19. In-app permission
    

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20. Revoke permissions
    

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21. What about “necessary”
    permissions?
    

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22. Cold start permissions
    

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23. The Battery Savers
    

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24. Doze
    Smart detect device inactivity and force shut everything
    Network is disabled
    Wake locks are ignored
    AlarmManager, Sync, JobScheduler
    prevented
    

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25. App Standby
    Automatically jail inactive applications
    Network is disabled
    Wakeups are regulated
    → Unless charging or app deemed used
    

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26. Material Updates
    

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27. Spec Updates
    1 year of Material design
    google.com/design
    

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28. New Resources
    Icon Library
    Device Metrics Tool
    

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29. Support Design Library
    Default implementation of Material
    Support Library Design
    Companion to support-v7-appcompat
    

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30. What’s in the box
    And more…
    NavigationView Snackbar Floating Action
    Button
    

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31. NavigationView
    xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    android:id="@+id/drawer_layout"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:fitsSystemWindows="true">

    

    android:id="@+id/left_drawer"

    android:layout_width="wrap_content"

    android:layout_height="match_parent"

    android:layout_gravity="start"

    app:headerLayout="@layout/drawerheader"

    app:menu="@menu/drawer_menu" />

    
    

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32. NavigationView
    

    

    android:id="@+id/drawer_nav_map"

    android:checked="true"

    android:icon="@drawable/ic_drawer_map"

    android:title="Map"

    android:orderInCategory="0" />

    android:id="@+id/drawer_nav_favorites"

    android:icon="@drawable/ic_drawer_star"

    android:title="Favorites"

    android:orderInCategory="1" />

    android:id="@+id/drawer_nav_rentals"

    android:icon="@drawable/ic_drawer_rentals"

    android:title="Rental History"

    android:orderInCategory="2" />

    

    
    

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33. SnackBar
    Snackbar.Make (view, "Here's a snackbar!", Snackbar.LengthLong)

    .SetAction ("Action", v => {})

    .Show ();
    

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34. Floating Action Button
    android:id="@+id/fab"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:layout_gravity="end|bottom"

    android:layout_margin="@dimen/fab_margin"

    android:src="@drawable/ic_add" />
    

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35. CoordinatorLayout
    Anchor floating items
    Choreograph view movements
    Implement interaction patterns
    

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36. CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:fitsSystemWindows="true">

    android:id="@+id/appbar" />

    

    android:layout_height="wrap_content"

    android:layout_width="wrap_content"

    android:src="@drawable/ic_discuss"

    android:layout_margin="@dimen/fab_margin"

    app:layout_anchor="@id/appbar"

    app:layout_anchorGravity="bottom|right|end"

    app:layout_behavior="FloatingActionButton.Behavior" />

    
    

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37. Behaviors
    CoordinatorLayout.Behavior
    LayoutDependsOn / OnDependentViewChanged
    OnLayoutChild/OnMeasureChild
    OnInterceptTouchEvent/OnTouchEvent
    OnNested*Scroll/OnNested*Fling
    

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38. Custom behavior
    public class InfoPaneFabBehavior : CoordinatorLayout.Behavior

    {

    // …

    

    public override bool LayoutDependsOn (CoordinatorLayout parent, Java.Lang.Object child, View dependency)

    {

    return dependency is InfoPane;

    }

    

    public override bool OnDependentViewChanged (CoordinatorLayout parent, Java.Lang.Object child, View dependency)

    {

    // Move the fab vertically to place correctly wrt the info pane

    var fab = child.JavaCast ();

    var currentInfoPaneY = ViewCompat.GetTranslationY (dependency);

    var newTransY = (int)Math.Max (0, dependency.Height - currentInfoPaneY - minMarginBottom - fab.Height / 2);

    ViewCompat.SetTranslationY (fab, -newTransY);

    

    // If alternating between open/closed state, change the FAB face

    if (wasOpened ^ ((InfoPane)dependency).Opened) {

    fab.Switch ();

    wasOpened = !wasOpened;

    }

    

    return true;

    }

    }
    

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39. Custom behavior
    

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40. M Checklist
    Think about your permission workflow
    Be careful that Doze won’t break your app
    Consider porting your app to appcompat
    

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41. Links
    Google I/O 2015 talks
    Permissions youtu.be/f17qe9vZ8RM
    Material Now youtu.be/8UicJ0SxBwA
    Samples
    github.com/xamarin/monodroid-samples/tree/master/android-m
    github.com/xamarin/monodroid-samples/tree/master/android5.0/Cheesesquare
    Blogs
    android-developers.blogspot.com/2015/05/android-design-support-library.html
    blog.xamarin.com/add-beautiful-material-design-with-the-android-support-design-library/
    

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