Set the checkbox state.
Allows you to select an item from a list of created ones or create a new one. After the item has been selected, the visual display of the item will automatically appear.
Allows you to change the state of the checkbox from the current one to the next in order.
Allows you to set the state to 'ON'.
Allows you to set the state to 'OFF'.
Contains an annotation to the activity. The input text will be displayed above the activity name.