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android – How do you start the user's selected Daydream programmatically?

Posted by: admin June 15, 2020 Leave a comment

Questions:

On my Galaxy Nexus, I can tap this button in system preferences to start my currently selected daydream.

preferences screenshot

Is there a way to reproduce this functionality in an app via Intent? I don’t have a daydream service, but I would like to allow the user to start their preferred daydream.

How to&Answers:
  • Edit 9/22/2014: This does not work on some Samsung phones
    I figured out how to do this by digging through some Android source code.
final Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("com.android.systemui", "com.android.systemui.Somnambulator");
startActivity(intent);

Sample app available here.