ViewportStatePatterns extension

Methods

map<TResult extends Object?>(TResult $default(_ViewportState value)) → TResult

Available on ViewportState, provided by the ViewportStatePatterns extension

A switch-like method, using callbacks.

mapOrNull<TResult extends Object?>(TResult? $default(_ViewportState value)?) → TResult?

Available on ViewportState, provided by the ViewportStatePatterns extension

A variant of map that fallback to returning null.

maybeMap<TResult extends Object?>(TResult $default(_ViewportState value)?, {required TResult orElse()}) → TResult

Available on ViewportState, provided by the ViewportStatePatterns extension

A variant of map that fallback to returning orElse.

maybeWhen<TResult extends Object?>(TResult $default(double scrollOffsetX, double scrollOffsetY, double viewportWidth, double viewportHeight, int firstVisibleRow, int lastVisibleRow, int firstVisibleColumn, int lastVisibleColumn)?, {required TResult orElse()}) → TResult

Available on ViewportState, provided by the ViewportStatePatterns extension

A variant of when that fallback to an orElse callback.

when<TResult extends Object?>(TResult $default(double scrollOffsetX, double scrollOffsetY, double viewportWidth, double viewportHeight, int firstVisibleRow, int lastVisibleRow, int firstVisibleColumn, int lastVisibleColumn)) → TResult

Available on ViewportState, provided by the ViewportStatePatterns extension

A switch-like method, using callbacks.

whenOrNull<TResult extends Object?>(TResult? $default(double scrollOffsetX, double scrollOffsetY, double viewportWidth, double viewportHeight, int firstVisibleRow, int lastVisibleRow, int firstVisibleColumn, int lastVisibleColumn)?) → TResult?

Available on ViewportState, provided by the ViewportStatePatterns extension

A variant of when that fallback to returning null