setCaptionOffset method
Sets the caption offset.
The offset
will be used when getting the correct caption for a specific position.
The offset
can be positive or negative.
The values will be handled as follows:
- 0: This is the default behaviour. No offset will be applied.
-
0: The caption will have a negative offset. So you will get caption text from the past.
- <0: The caption will have a positive offset. So you will get caption text from the future.
Implementation
void setCaptionOffset(Duration offset) {
value = value.copyWith(
captionOffset: offset,
caption: _getCaptionAt(value.position),
);
}