Please see the SteadyScreen project for more details.

• Stilly app: The engine behind the scenes.
• SteadyService library: If you want to implement your own screen stabilizer service that won't need Stilly.
• SteadyViews library: Ready-to-use "Steady…" implementations of most common Android layouts (like e.g. LinearLayout or ConstraintLayout).
• SteadyView library (this): Core classes and methods. To be used for custom View or ViewGroup implementations.

This library enables you to implement the functionality in your own custom View or ViewGroup. If you need ready-to-use "Steady…" implementations of most common Android layouts (like e.g. LinearLayout or ConstraintLayout), you can use the SteadyViews library instead.

1. Add the following line to your build.gradle file (find more info at https://jitpack.io/#Sublimis/SteadyView):

implementation 'com.github.Sublimis:SteadyView:v1.3.1'

2. Let your custom android.view.View or android.view.ViewGroup implement the lib.sublimis.steadyview.ISteadyView interface. This helper interface has no required methods, only a few methods that you can call from your code.
3. Call the ISteadyView.super.initSteadyView() in every constructor of your custom view.
4. Override the android.view.View.performAccessibilityAction(int, Bundle) method, from which you should call the ISteadyView.super.performSteadyViewAction(int, Bundle), like so:

   @Override
   public boolean performAccessibilityAction(final int action, @Nullable final Bundle arguments)
   {
      final boolean status = ISteadyView.super.performSteadyViewAction(action, arguments);

      return super.performAccessibilityAction(action, arguments) || status;
   }

5. Install and enable the Stilly screen stabilizer accessibility service from the Play Store.
6. Enjoy!

Call the ISteadyView.setSteadyViewEnabled(final boolean enabled) method on your ISteadyView to disable or (re)enable the functionality:

MyCustomView extends View implements ISteadyView
{
   ...
}

MyCustomView myCustomView = new MyCustomView();

...

myCustomView.setSteadyViewEnabled(false);

...

myCustomView.setSteadyViewEnabled(true);

Note, this does not disable/enable the service, it just tells the View to ignore all service inputs. Call the boolean ISteadyView.isSteadyViewEnabled() on your ISteadyView to check the enabled state.

Below is the complete implementation of the functionality in a custom view that overrides the plain android.view.View.

If you need ready-to-use "Steady…" implementations of the most common Android layouts (like e.g. LinearLayout or ConstraintLayout), you can use the SteadyViews library instead.

import android.content.Context;
import android.os.Bundle;
import android.util.AttributeSet;
import android.view.View;

import androidx.annotation.Nullable;
import lib.sublimis.steadyview.ISteadyView;

public class SteadyView extends View implements ISteadyView
{
   public SteadyView(final Context context)
   {
      super(context);

      ISteadyView.super.initSteadyView();
   }

   public SteadyView(final Context context, @Nullable final AttributeSet attrs)
   {
      super(context, attrs);

      ISteadyView.super.initSteadyView();
   }

   public SteadyView(final Context context, @Nullable final AttributeSet attrs, final int defStyleAttr)
   {
      super(context, attrs, defStyleAttr);

      ISteadyView.super.initSteadyView();
   }

   public SteadyView(final Context context, @Nullable final AttributeSet attrs, final int defStyleAttr, final int defStyleRes)
   {
      super(context, attrs, defStyleAttr, defStyleRes);

      ISteadyView.super.initSteadyView();
   }

   @Override
   public boolean performAccessibilityAction(final int action, @Nullable final Bundle arguments)
   {
      final boolean status = ISteadyView.super.performSteadyViewAction(action, arguments);

      return super.performAccessibilityAction(action, arguments) || status;
   }
}