Returns a modified version of this playlist. Because BCOVPlaylist objects
are immutable, an entirely new BCOVPlaylist must be created even if only
a single change is needed. Therefore, this method provides a convenient way
to obtain a temporary mutable copy of this instance and modify it (within
updateBlock).
- (instancetype)update:(void ( ^ ) ( id<BCOVMutablePlaylist> mutablePlaylist ))updateBlock
Parameters
updateBlock |
A block which is passed a mutable copy of this playlist. |
Return Value
The copy of this cue point modified by updateBlock.
Discussion
Returns a modified version of this playlist. Because BCOVPlaylist objects
are immutable, an entirely new BCOVPlaylist must be created even if only
a single change is needed. Therefore, this method provides a convenient way
to obtain a temporary mutable copy of this instance and modify it (within
updateBlock).
Do not attempt to save a reference to the mutable playlist passed to
updateBlock, as the behavior of doing this is undefined. Instead, make
whatever modifications are necessary in the block and then capture the
playlist object returned from this method.
Declared In
BCOVPlaylist.h