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    ListPicker: It provides a button to open a list of items for the user to select from. It is an
                        efficient way to display multiple choices without overcrowding the screen.

                         List View: It displays a scrollable list of items.
                         Notifier: It is a non-visible component used to provide alerts, messages or feedback to

                        users in the form of pop-ups.

                         PasswordTextBox: It is a special type of TextBox used for securely entering sensitive
                        information, such as passwords. It masks the input characters by displaying them as
                        asterisks or dots to protect user privacy.
                         Slider: It lets users select a value from a range by sliding a marker.

                         Spinner: It offers a compact way to select an option from a predefined list.

                         Switch: It offers a toggle switch for binary on/off states.

                         TextBox: It allows users to input text.

                         TimePicker: It lets users select a specific time using a clock interface. It also allows them
                        to schedule alarms or set reminders.

                         WebViewer: It displays web pages or HTML content directly within the app.

                                TOUCH EVENTS OVERVIEW

                      Touch events in MIT App Inventor are mechanisms that allow apps to respond to user
                      interactions on the screen. These events are particularly useful for creating interactive
                      elements, such as buttons, drawing canvases or custom gestures.

                      TYPES OF TOUCH EVENTS

                      There are four types of touch events:

                         TouchDown: This event triggered when the user first touches the screen or a specific
                        component. Generally, it is used to start an action, like drawing a line or detecting the
                        initial position of a touch.

                         TouchUp: This event is triggered when the user lifts their finger off the screen or a specific
                        component. It is commonly used to complete an action, like finishing a drag operation or
                        stopping a drawing.

                         Touched: This event is triggered when the user taps on a component. It is a simple event
                        that detects touch interactions.

                         Drag: This event is triggered when the user moves their finger across the screen or
                        a component  while keeping  it  pressed.  Use this  event  to  implement  drag-and-drop
                        functionality or create drawing apps.

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