Android M

Charla sobre novedades de Android M impartida en Cylicon Valley

Transcript

1. Android M @nhpatt / Javier Gamarra
2. @nhpatt / Javier Gamarra @liferay @agilecyl
3. Android?
4. Best improvement in M?
5. Best improvement in M • Design support library? • Data binding?
6. What is the biggest problem developing with Android?
7. Android Problems • Fragmentation anyone? • Let`s talk about it… • How many support libraries are there?
8. Design Support Library
9. Design Support Library Yet Another Support Library: compile 'com.android.support:design:22.2.0' Embeds the normal support library
10. Design Support Library • Snackbar -> fixing toasts and “manual” snackbars Snackbar.make(view, "Your message", LENGTH_SHORT) .setAction(getString(R.string.text_undo), this) .show();
11. Design Support Library • FAB -> replaces “manual” libraries <android.support.design.widget.FloatingActionButton android:id="@+id/fab_normal" app:fabSize="normal" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/ic_plus" />
12. Design Support Library Customizable (size, tint, border, ripple…)
13. Design Support Library • TextInputLayout -> awesome fields with floating hints and errors
14. Design Support Library <android.support.design.widget.TextInputLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <EditText android:id="@+id/edit_text_email" android:layout_width="match_parent" android:layout_height="wrap_content" android:inputType="textEmailAddress" android:hint="@string/hint_email" /> </android.support.design.widget.TextInputLayout>
15. Design Support Library And errors: setErrorEnabled(true); setError(getString(R.string.text_error_message));
16. Design Support Library • NavigationView replaces “manual” sidebar
17. Design Support Library <android.support.design.widget.NavigationView android:id="@+id/navigation_view" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_gravity="start" app:headerLayout="@layout/navigation_header" app:menu="@menu/drawer" />
18. Design Support Library We can group menu entries, change background, capture click events...
19. Design Support Library • TabLayout -> tabs made easy <android.support.design.widget.TabLayout android:id="@+id/sliding_tabs" android:layout_width="match_parent" android:layout_height="wrap_content" app:tabMode="fixed" app:tabGravity="fill" />
20. Design Support Library • TabMode • Listeners • Integration with ViewPager • ...
21. Design Support Library • CoordinatorLayout & AppBarLayout -> automatic transitions and integration with toolbar (or FAB…) • Scroll actions like enterAlways • Parallax effect
22. Design Support Library • Vector drawables (this is cool) -> better shapes • Only on M • But easy to animate!
23. Design Support Library • And new support library version… ◦ colorPrimary <3 • And new play-services… • And support annotations ◦ (Null, resources, threading, permissions…)
24. Design support library Looks great but… bugs!
25. App Permissions
26. App permissions Now you have to be aware of the permissions (and the chain of permissions!) • You define the permissions in the manifest (as always) • But there are NORMAL permissions and SPECIAL.
27. App permissions Permission is requested on first use for SPECIAL permissions. • You have to check explicitly • You have to deal with revoking a permission ◦ Or the user deciding against granting it
28. App permissions Only for M targeted builds! <uses-permission-sdk-m> Build.VERSION Context.checkSelfPermission(permission_name) Activity.requestPermissions(String[], int) public void onRequestPermissionsResult(...)
29. App permissions Reference
30. App Links
31. App links Allow registering your app as default handler (instead of dialog) of links.
32. App links • Host a JSON, including your fingerprint • And request the verification from your manifest Reference
33. Data binding
34. Data binding • Declarative layouts • Less code Yeah… but why? Simple Example
35. Data binding <layout> <data> <variable name="movie" type="com.nhpatt.androidm.model.Movie" /> </data> <LinearLayout ...> <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@{movie.title}" /> </LinearLayout> </layout>
36. Data binding ActivityBindingBinding binding = DataBindingUtil.setContentView(this, R.layout.activity_binding); binding.setMovie(new Movie("Mad Max"));
37. Data binding Conditionals: android:visibility="@{movie.isNew ? View.VISIBLE : View.GONE}" Includes: <include layout="@layout/name" bind:movie="@{movie}"/>
38. Data binding • Expression language! Like JSTL, JSF: concatenation, math expressions, comparisons, casts, method calls… Except this, new and super.
39. Data binding New operators! ?? like || in JS android:text="@{movie.displayName ?? movie.title}"
40. Data binding NPE tolerant: @{movie.name} -> returns null if movie is null
41. Data binding “Live” data binding with Observable Objects: • inherit from BaseObservable • @Bindable in getter • notifyPropertyChanged in setter Or being a instance of ObservableField or ObservableArrayMap...
42. Data binding Lots of more stuff: • Converters • Custom getters/setters • Dynamic binding • ... Reference
43. Direct share
44. Direct share Easy & powerful way of sharing :) But only in M… (right now)
45. Backup & restore
46. Backup & restore • Google Drive • Every 24 hours • Opt out • Don’t do it with the registrationId
47. Backup & restore Reference with the manifest and specify what to save: android:fullBackupContent="@xml/mybackupscheme" <?xml version="1.0" encoding="utf-8"?> <full-backup-content> <exclude domain="database" path="device_info.db"/> </full-backup-content>
48. Backup & restore Testeable!: adb shell bmgr run Reference
49. And more things...
50. And more things... • Cloud test lab • Doze (testeable!) • Now on tap • API device unlock • Developer page • Lots.
51. Not Android L but a lot of cool stuff
52. References • Good android guide • Exploring design support library ! • And another great one !
53. Android M @nhpatt / Javier Gamarra