Helper class for showing cheat sheets (tooltips) for icon-only UI elements on long-press. This is already default platform behavior for icon-only {@link android.app.ActionBar} items and tabs. This class provides this behavior for any other such UI element.
Removes the cheat sheet for the given view by removing the view's {@link android.view.View.OnLongClickListener}. view: The view whose cheat sheet should be removed.
Sets up a cheat sheet (tooltip) for the given view by setting its {@link android.view.View.OnLongClickListener}. When the view is long-pressed, a {@link Toast} with the given text will be shown either above (default) or below the view (if there isn't room above it). view: The view to add a cheat sheet for. text: The text to show on long-press.