appleOSLayout method

@override Widget appleOSLayout(BuildContext context)

Layout for Apple OS devices. 苹果系列设备的选择器布局

Implementation

@override
Widget appleOSLayout(BuildContext context) {
  return Stack(
    children: <Widget>[
      Positioned.fill(
        child: Selector<DefaultAssetPickerProvider, bool>(
          selector: (_, DefaultAssetPickerProvider p) => p.hasAssetsToDisplay,
          builder: (_, bool hasAssetsToDisplay, __) => AnimatedSwitcher(
            duration: switchingPathDuration,
            child: hasAssetsToDisplay
                ? Stack(
                    children: <Widget>[
                      RepaintBoundary(
                        child: Stack(
                          children: <Widget>[
                            Positioned.fill(
                              child: assetsGridBuilder(context),
                            ),
                            if ((!isSingleAssetMode || isAppleOS) &&
                                isPreviewEnabled)
                              PositionedDirectional(
                                bottom: 0.0,
                                child: bottomActionBar(context),
                              ),
                          ],
                        ),
                      ),
                      pathEntityListBackdrop(context),
                      pathEntityListWidget(context),
                    ],
                  )
                : loadingIndicator(context),
          ),
        ),
      ),
      appBar(context),
    ],
  );
}