Post on 07-Apr-2017
What’s new in Android
Mateusz Herych
Android @ IG
Mateusz Herych
Android @ IG
Fresh dad of twins
Mateusz Herych
Android @ IG
Fresh dad of twins
Full time
Mateusz Herych
Android @ IG
Fresh dad of twins
Full time
4x fulltime
Mateusz Herych
Android @ IG
Fresh dad of twins
Android GDE program member
Mateusz Herych
Android @ IG
Fresh dad of twins
Android GDE program member
GDG Kraków co-org
What’s new in Android
Android N developer preview
Android N developer preview
N is for ...
What cool features is N coming with?
What cool features is N coming with?
How Android N will break my app?
Why should I care (now)?
Lollipop is over 40% now
Nexus is not just a developer-candy anymore
Multi window support
Multi window support
Was there in 6.0 (Marshmallow) preview, then removed before release.
Enabled for every app by default (even for non-N-targetting)
Enabled for every app by default (even for non-N-targetting)
Lifecycle - only most recent Activity is in resumed state.
Enabled for every app by default (even for non-N-targetting)
Lifecycle - only most recent Activity is in resumed state.
Lifecycle - split and resize works same as orientation / configuration change
Enabled for every app by default (even for non-N-targetting)
Lifecycle - only most recent Activity is in resumed state.
Lifecycle - split and resize works same as orientation / configuration change
You can specify a minimum height / width
Two screens at most
Two screens at most
One above another or side-by-side
Two screens at most
One above another or side-by-side
Drag’n’drop between two screens
How can I know it’ll work?
How can I know it’ll work?
Install N on your phone / run emulator.
How can I know it’ll work?
Install N on your phone / run emulator.
“Don’t keep activities” in settings
How can I know it’ll work?
Install N on your phone / run emulator.
“Don’t keep activities” in settings
Orientation changes
How can I know it’ll work?
Install N on your phone / run emulator.
“Don’t keep activities” in settings
Orientation changes
Consider your onPause()
Btw
screenOrientation=”portrait”, anyone?
Btw
Isn’t going to work in N.
Btw
Isn’t going to work in N. (unless you disable multi-window support for your app)
Btw
Same case if your app is hiding a status bar.
Yes, you can disable it entirely for your app.
android:resizeableActivity=["true" | "false"]
But, please.
Don’t.
Another cool feature that makes Android better.
Future?
Maybe.
Doze - Marshmallow
Doze - Marshmallow
Screen is off
Doze - Marshmallow
Screen is off
Not charging
Doze - Marshmallow
Screen is off
Not charging
Device is stationary
Doze - N
Screen is off
Not charging
Device is stationary
Doze - N
Screen is off
Not charging
Device is stationary
Broadcast Receivers
Broadcast Receivers
How much time does it take to shoot a picture on your Android device?
Broadcast Receivers
How much time does it take to shoot a picture on your Android device?
How your devices behaves (performance) when your device connects to a WIFI network?
Broadcast Receivers
CONNECTIVITY_ACTION
ACTION_NEW_PICTURE
ACTION_NEW_VIDEO
Broadcast Receivers
AndroidManifest.xml won’t work for them
Broadcast Receivers
AndroidManifest.xml won’t work for them
Only for foreground apps, with Receivers registered on a main thread
Broadcast Receivers
Even for targetSdk < N
Broadcast Receivers
Don’t listen on CONNECTIVITY_ACTION
Broadcast Receivers
JobScheduler / GCMNetworkManager
Metered plans
Metered plans
How much would you pay for 1 GB of data plan in a foreign country?
Metered plans
1 GB = ?
Metered plans
1 GB = ~2500 EUR
Data saver
Data saver
ConnectivityManager.isActiveNetworkMetered()
Data saver
ConnectivityManager.isActiveNetworkMetered()
(API Level 16)
Data saver
Settings -> “Restrict data consumption in the background”
Data saver
Your app can be now whitelisted. Yeah!
Data saver
ConnectivityManager.getRestrictBackgroundStatus()
Data saver
RESTRICT_BACKGROUND_STATUS_DISABLED
RESTRICT_BACKGROUND_STATUS_ENABLED
RESTRICT_BACKGROUND_STATUS_WHITELISTED
There are more
There are moreJava 8 support (finally, but!)
There are moreJava 8 support (finally, but!)
New notifications (built-in new support lib, Notification.Builder)
Questions?
Curry onand #minSdkLevel19