实验性
Properties required to create a status bar item
可选
Alignment of item within status bar. If undefined, it will be left aligned.
Optional icon image resource of the item.
Size of the status bar item. If undefined, it will wrap text content.
Default localized display text of the item. If undefined, it will be empty string.
Default visibility of the item. If undefined, it will be true.
Properties required to create a status bar item