Accessibility : Introduction of custom views

While adding the grouping of views into a view-group , what if there are more than one click-lisnters added on views , how clicks are handled in accessibility grouping?

This can be done with the help of AccessibilityDelegateCompat , which is the part of accessibility api.
This class is helpful for adding the actions and events on any view. Actions will be listed under Local Context Menu and events will announce after the content announcement , like double tap to activate or double tap and hold to long press etc.

For example :

• If it is required to add anything on double tap when talkback is on , then it will add in event.
• when it is required to add any custom action like : detail or delete etc. then it will add in actions.

Note : 

• All the events for that view will announce after the content announcement
• All the action will appear under local context menu 
• All the action names , should covey the exact meaning of that action , not like click here 

As per developer.android.com there are many methods defined , which can be overridden :

 dispatchPopulateAccessibilityEvent : Dispatches an AccessibilityEvent to the host view first and then to its children for adding their text content to the event.

 onInitializeAccessibilityEvent : Initializes an AccessibilityEvent with information about the host view which is the event source.

onInitializeAccessibilityNodeInfo : Initializes an AccessibilityNodeInfoCompat with information about the host view.

onPopulateAccessibilityEvent : Gives a chance to the host View to populate the accessibility event with its text content

onRequestSendAccessibilityEvent : Called when a child of the host view has requested sending an AccessibilityEvent and gives an opportunity to the parent (the host) to add the event.

sendAccessibilityEvent : Sends an accessibility event of the given type. If accessibility is not enabled this method has no effect.

sendAccessibilityEventUnchecked : Sends an accessibility event. This method behaves exactly as sendAccessibilityEvent(View, int) but takes as an argument an
 empty AccessibilityEvent and does not perform a check whether accessibility is enabled.

getAccessibilityNodeProvider : Gets the provider for managing a virtual view hierarchy rooted at this View and reported to android.accessibilityservice.AccessibilityService
that explore the window content.

performAccessibilityAction : Performs the specified accessibility action on the view.