What's new in Android M

Transcript

1. You should be looking at
2. Hi! I’m Jérémie @jeremie_laval
4. Android IDE tooling Android Component s Evangelis m A monkey?!
5. Android Fanboy Android Fanboy Android Fanboy Banana!
6. what’s new in Android M
7. Android M Preview codename MNC Macadamia Nut Cookie (Marzipan?) (M&Ms?)
8. Preview Availability
9. Timeline A preview release ~every month Preview 1 Google I/O 2015 Preview 2 July 16th Preview 3 August? Final release Late September
10. Release Focus Polish Performance Battery savings 7
11. Platform Highlights New Permission Workflow Doze / App Standby Material Design Updates
12. App Permissions
13. Old Style
14. Issues Prevent automatic updates Out-of-context Low user-engagement
15. Advantage Total Developer Freedom
16. The New System Low and high risk permission split → Only if your app targets M Contextualized asking for more Cope with refusal/revocation
17. What you get Bluetooth Internet Network State NFC Vibrate Settings Flashlight Accounts Alarm … As declared in app manifest
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
 }
 }
19. In-app permission
20. Revoke permissions
21. What about “necessary” permissions?
22. Cold start permissions
23. The Battery Savers
24. Doze Smart detect device inactivity and force shut everything Network is disabled Wake locks are ignored AlarmManager, Sync, JobScheduler prevented
25. App Standby Automatically jail inactive applications Network is disabled Wakeups are regulated → Unless charging or app deemed used
26. Material Updates
27. Spec Updates 1 year of Material design google.com/design
28. New Resources Icon Library Device Metrics Tool
29. Support Design Library Default implementation of Material Support Library Design Companion to support-v7-appcompat
30. What’s in the box And more… NavigationView Snackbar Floating Action Button
31. NavigationView <android.support.v4.widget.DrawerLayout 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">
 <!-- Content view -->
 <android.support.design.widget.NavigationView
 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" />
 </android.support.v4.widget.DrawerLayout>
32. NavigationView <menu xmlns:android="http://schemas.android.com/apk/res/android">
 <group android:checkableBehavior="single">
 <item
 android:id="@+id/drawer_nav_map"
 android:checked="true"
 android:icon="@drawable/ic_drawer_map"
 android:title="Map"
 android:orderInCategory="0" />
 <item
 android:id="@+id/drawer_nav_favorites"
 android:icon="@drawable/ic_drawer_star"
 android:title="Favorites"
 android:orderInCategory="1" />
 <item
 android:id="@+id/drawer_nav_rentals"
 android:icon="@drawable/ic_drawer_rentals"
 android:title="Rental History"
 android:orderInCategory="2" />
 </group>
 </menu>
33. SnackBar Snackbar.Make (view, "Here's a snackbar!", Snackbar.LengthLong)
 .SetAction ("Action", v => {})
 .Show ();
34. Floating Action Button <android.support.design.widget.FloatingActionButton
 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" />
35. CoordinatorLayout Anchor floating items Choreograph view movements Implement interaction patterns
36. CoordinatorLayout <android.support.design.widget.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.support.design.widget.AppBarLayout
 android:id="@+id/appbar" />
 <!-- ... -->
 <android.support.design.widget.FloatingActionButton
 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" />
 </android.support.design.widget.CoordinatorLayout>
37. Behaviors CoordinatorLayout.Behavior LayoutDependsOn / OnDependentViewChanged OnLayoutChild/OnMeasureChild OnInterceptTouchEvent/OnTouchEvent OnNested*Scroll/OnNested*Fling
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<SwitchableFab> ();
 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;
 }
 }
39. Custom behavior
40. M Checklist Think about your permission workflow Be careful that Doze won’t break your app Consider porting your app to appcompat
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/