Int16List.view constructor
Creates an Int16List view of the specified region in buffer
.
Changes in the Int16List will be visible in the byte
buffer and vice versa.
If the offsetInBytes
index of the region is not specified,
it defaults to zero (the first byte in the byte buffer).
If the length is not specified, it defaults to null
,
which indicates that the view extends to the end of the byte buffer.
Throws RangeError if offsetInBytes
or length
are negative, or
if offsetInBytes
+ (length
* elementSizeInBytes) is greater than
the length of buffer
.
Throws ArgumentError if offsetInBytes
is not a multiple of
bytesPerElement.
Note that when creating a view from a TypedData list or byte data,
that list or byte data may itself be a view on a larger buffer
with a TypedData.offsetInBytes greater than zero.
Merely doing Int16List.view(other.buffer, 0, count)
may not
point to the bytes you intended. Instead you may need to do:
Int16List.view(other.buffer, other.offsetInBytes, count)
Alternatively, use Int16List.sublistView which includes this computation.
Int16List.sublistView(other, 0, count)
(The third argument is an end index rather than a length, so if you start from a position greater than zero, you need not reduce the count correspondingly).
Implementation
factory Int16List.view(ByteBuffer buffer,
[int offsetInBytes = 0, int length]) {
return buffer.asInt16List(offsetInBytes, length);
}