FilePickerFileType 继承自： Enum

Defines the file types that can be selected using the FilePicker.

枚举值

名称	类型	默认值	说明
ANY	—	'any'	Allows any file type.
MEDIA	—	'media'	A combination of VIDEO and IMAGE.
IMAGE	—	'image'	Allows only image files.
VIDEO	—	'video'	Allows only video files.
AUDIO	—	'audio'	Allows only audio files.
CUSTOM	—	'custom'	Allows only the custom file types specified in the allowed_extensions list.