How to develop Screen Saver app for Android TV? - android

I want to Make a screen saver app for Android TV in Android Studio like this app https://play.google.com/store/apps/details?id=com.acrodea.fish.lite
I saw in this app but I don't know what layout is using on this application or what widget ?
I want to do same but with my creativity ?
I want to make same app for Android TV ?
I search about what functionality to use in this demo app but can't find anything on the internet about this.

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Is there a way to have leanback's (hidden) Playback Controls to show up in mobile?

I've developed a simple "video catalog" android TV app using the leanback sample from Android Studio. The app works fine in both TV and mobile, with TV working obviously better since I know the leanback features are intended to be for TV apps. The app works fine with mobile phones, and there's almost no difference in using it on TV or phone. In fact, the one big difference and issue I see is that when the Playback controls are hidden there's no way to make them show up again in phone, whilst in TV it's as easy as just clicking a button of the remote.
My question is if there's some way to fix that, to get the controls to show up again after being hidden (in phone). Thanks

Multiwindow playground sample in Android Automotive N

Iam trying to run Android multiwindow sample https://github.com/googlesamples/android-MultiWindowPlayground on Android Automotive N. Inorder to switch app into split screen mode, it is suggested to long-press the recents button. Though the resizableactivity attribute is set true in Android manifest, it doesnot works in split screen mode in Headunit.
Please let me know how can I enable split screen mode in Android N Automotive Headunit?
Hope I understand your question, but fairly sure the point of Android Auto is to provide 'safe' access to some phone features, multi-window kinda defeats that purpose so I'm guessing the force it off in the Android Auto app.

How to force a widget to appear on lock screen programmatically (Android)

I want to force a widget to appear on the lock screen in Android.
Any ideas or code examples?
Thanks in advance.
First, the standard Android lockscreen framework only supports app widgets from Android 4.1 through 4.4, which is a steadily shrinking portion of the Android device ecosystem.
Second, there is no programmatic means, in standard Android, to force the user to add an app widget to the home screen or to the lockscreen.

How to support new ambient mode in android wear?

Since last update Android Wear has a new feature - the always-on mode. This means that the Android Wear device doesn’t turn off the screen; it changes to the ambient mode to save battery and keeps certain apps running in the background.
How exactly should I implement this?
p.s. I'm developing sport application, not watchface.
We have also created a code lab to run through the steps. Please find it here:
https://io2015codelabs.appspot.com/codelabs/always-on#1
What you're looking for is how to support "Ambient Mode" in your Wear app's activity.
There is an entire doc dedicated to this:
http://developer.android.com/training/wearables/apps/always-on.html
As well as a code sample:
https://github.com/googlesamples/android-AlwaysOn/

Android: How to disable Desktops?

We have an App for a tablet with Android 2.2. This is the only App that should run on this tablet. It starts automatically.
Thats why the user should not have access to other Apps on this tablet, especially not to the settings.
How we can realize this?
You should probably write your application as a Home application. There is an example in the developer docs here:
http://developer.android.com/resources/samples/Home/index.html
Then you'd be able to switch the default Home application for your one.

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