What's new in Android (Development) 2015?

A talk given at Google IO Extended Yangon organised by GDG Yangon.
There are lots of New stuffs in Android. In this talk, I focused on what's new for Android Developers and what I found important for local developers.

Transcript

1. What’s new in Android (Development)? Google I/O Extended Yangon June 2015
2. Swan Htet Aung Software Engineer @ nex Product Manager Lead Android Engineer Lead Android Engineer .com
3. What’s new in Android (Development)?
4. M-Developer Preview
5. M Stands for…
6. So… what is new?
7. app permissions App links Battery Android Pay Fingerprint AutoBackup Adoptable External Storage Devices Improved USB flash drive support Launcher and App drawer Dark Mode Quick Settings Notifications Doze and App Standby (power improvements) Direct Share Hotspot 2.0 Bluetooth Stylus support Text Selection Split keyboard for tablets Multi-window mode
8. For development?
9. Icon with Bitmap Icon ic = Icon.createWithResource(context, R.drawable.ic_notification); 
 new Notification.Builder(context) .setSmallIcon(ic) … … … .build();
10. Icon with Bitmap Icon ic = Icon.createWithBitmap(iconBitmap); 
 new Notification.Builder(context) .setSmallIcon(ic) … … … .build();
11. Vector Images Bitmap Vector
12. Text Processing <intent-filter>
 <action android:name=“android.intent.action.PROCESS_TEXT” />
 </intent-filter>
13. App Link <intent-filter android:autoVerify=“true”>
 <action android:name=“android.intent.action.VIEW” />
 <category android:name=“android.intent.category.DEFAULT” /> <category android:name=“android.intent.category.BROWSABLE” /> <data android:scheme=“http” android:host=“www.letshush.com”/> <data android:scheme=“https” android:host=“www.letshush.com”/> </intent-filter> http://developer.android.com/preview/features/app-linking.html
14. Voice Interaction
15. Our dream (2014) Hackathon app “Poh”
16. Our dream (2014) • 5 hours • “OK Buddy” • used Pocketsphinx • had to develop custom Dictionary • hard to train • SpeechRecognizer is not good enough (may be I am dumb)
17. Voice Interaction (2015) • add Voice Intents • add Activity to handle those intents
18. Voice Interaction Dependency compile 'com.google.android.gms:play-services:7.5.0' build.gradle compileSdkVersion "android-MNC"
 buildToolsVersion "21.1.2"
 
 defaultConfig {
 minSdkVersion "android-MNC"
 targetSdkVersion "android-MNC"
 }
19. <activity
 android:name="com.swanhtetaung.iotalk.VoiceReceiveActivity"
 android:label="@string/app_name">
 
 <intent-filter>
 <action android:name="com.google.android.gms.actions.SEARCH_ACTION" />
 
 <category android:name="android.intent.category.DEFAULT" />
 <category android:name="android.intent.category.VOICE" />
 </intent-filter>
 
 </activity> AndroidManifest.xml
20. VoiceReceiveActivity.java Intent intent = getIntent(); 
 if (intent == null) {
 finish();
 } else {
 if (SearchIntents.ACTION_SEARCH.equals(intent.getAction())) {
 String query = intent.getStringExtra(SearchManager.QUERY);
 tvResult.setText(query);
 }
 }
21. Voice Interaction • Check out System Actions reference https://developers.google.com/voice-actions/system/#system_actions_reference • Not enough? • Submit your Custom Actions https://developers.google.com/voice-actions/custom-actions What’s Next?
22. Data Binding
23. Data Binding • Still in Beta • Depends on “DataBinding” plugin
24. Data Binding (Beta) • declare POJO types • listen directly in layout XML files
25. buildscript {
 repositories {
 jcenter()
 }
 dependencies {
 classpath 'com.android.tools.build:gradle:1.2.3'
 classpath "com.android.databinding:dataBinder:1.0-rc0"
 }
 } build.grade
26. build.grade /*[ ... ]*/
 
 apply plugin: 'com.android.application'
 apply plugin: 'com.android.databinding'
 
 /*[ ... ]*/
27. activity_data_binding.xml <?xml version="1.0" encoding="utf-8"?>
 <layout xmlns:android="http://schemas.android.com/apk/res/android">
 
 <data>
 
 <variable
 name="movie"
 type="com.swanhtetaung.iotalk.databinding.Movie" />
 </data>
 
 <LinearLayout
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical">
 
 <TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="@{movie.name}" />
 </LinearLayout>
 </layout>
28. DataBindingActivity.java ActivityDataBindingBinding sampleBinding =
 DataBindingUtil.setContentView(this, R.layout.activity_data_binding);
 
 Movie movie = new Movie("Fast & Furious");
 sampleBinding.setMovie(movie);
29. Data Binding • Check out Data Binding Guide http://developer.android.com/tools/data-binding/guide.html • Play with Recycler/List views • Play with other Observable Objects What’s Next?
30. Design Support Library
31. Design Support Library • TextInputLayout • FAB • Snackbar • TabLayout • NavigationView • CoordinatorLayout • AppBarLayout • CollapsingToolbarLayout
32. DataBindingActivity.java dependencies {
 
 compile ‘com.android.support:design:22.2.0' 
 }
33. NavigationView • say Goodbye to Navigation Fragments with ListView • becomes part of MENU • place inside DrawerLayout
34. activity_main.xml <android.support.v4.widget.DrawerLayout
 android:id="@+id/drawer_layout"
 xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 tools:context="com.swanhtetaung.iotalk.MainActivity">
 
 <FrameLayout
 android:id="@+id/container"
 android:layout_width="match_parent"
 android:layout_height="match_parent" />
 
 <fragment
 android:id="@+id/navigation_drawer"
 android:name="com.swanhtetaung.iotalk.drawer.old.NavigationDrawerFragment"
 android:layout_width="@dimen/navigation_drawer_width"
 android:layout_height="match_parent"
 android:layout_gravity="start"
 tools:layout="@layout/fragment_navigation_drawer" />
 
 </android.support.v4.widget.DrawerLayout>

35. activity_new_drawer.xml <?xml version="1.0" encoding="utf-8"?>
 <android.support.v4.widget.DrawerLayout
 android:id="@+id/drawer_layout"
 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">
 
 <FrameLayout
 android:id="@+id/container"
 android:layout_width="match_parent"
 android:layout_height="match_parent" />
 
 <android.support.design.widget.NavigationView
 android:id="@+id/nav_view"
 android:layout_width="wrap_content"
 android:layout_height="match_parent"
 android:layout_gravity="start"
 android:fitsSystemWindows="true"
 app:headerLayout="@layout/nav_header"
 app:menu="@menu/drawer_view" />
 
 </android.support.v4.widget.DrawerLayout>
36. drawer_view.xml <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
 
 <group android:checkableBehavior="single">
 <item
 android:id="@+id/nav_home"
 android:title="Home" />
 <item
 android:id="@+id/nav_messages"
 android:title="Hot" />
 </group>
 
 <item android:title="Sub items">
 <menu>
 <item
 android:icon="@drawable/ic_media_play"
 android:title="Sub item 1" />
 <item
 android:icon="@drawable/ic_media_pause"
 android:title="Sub item 2" />
 </menu>
 </item>
 </menu>

37. NewDrawer.java NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); navigationView.setNavigationItemSelectedListener(
 new NavigationView.OnNavigationItemSelectedListener() {
 @Override public boolean onNavigationItemSelected(MenuItem menuItem) {
 menuItem.setChecked(true);
 mDrawerLayout.closeDrawers();
 return true;
 }
 });
38. Design Support Lib • Check out ChrisBanes’ https://github.com/chrisbanes/cheesesquare • Start using design support libs in your projects • Support Material Design What’s Next?
39. New upcoming Feature in Android Studio
40. Visual Design Editors
41. Thank You
42. @swanhtet1992 twitter, github, etc…