removeListener method
Stop listening for new concrete ImageInfo objects and errors from
the listener
's associated ImageErrorListener.
Implementation
void removeListener(ImageListener listener) {
if (_completer != null)
return _completer.removeListener(listener);
assert(_listeners != null);
for (int i = 0; i < _listeners.length; ++i) {
if (_listeners[i].listener == listener) {
_listeners.removeAt(i);
continue;
}
}
}