showOverlayWindow static method

OverlayController? showOverlayWindow(
  1. BuildContext context,
  2. GlobalKey<State<StatefulWidget>>? targetKey, {
  3. Widget? content,
  4. OverlayPopDirection popDirection = OverlayPopDirection.bottom,
  5. bool autoDismissOnTouchOutSide = true,
  6. Function? onDismiss,
})

OverlayWindow 工具方发，用于快速弹出 Overlay， 返回 OverlayController 用于控制 Overlaywindow 的隐藏 targetKey 锚点 Widget 的 key，用于 OverlayWindow 的定位 popDirection OverlayWindow 相对于 key 的展示位置， 默认 bottom content 要展示的内容 autoDismissOnTouchOutSide 点击 OverlayWindow 外部是否自动消失，默认为 true onDismiss OverlayWindow 消失回调

Implementation

static OverlayController? showOverlayWindow(
    BuildContext context, GlobalKey? targetKey,
    {Widget? content,
    OverlayPopDirection popDirection = OverlayPopDirection.bottom,
    bool autoDismissOnTouchOutSide = true,
    Function? onDismiss}) {
  assert(content != null);
  assert(targetKey != null);
  assert(content != null);

  if (content == null || targetKey == null) return null;

  OverlayController? overlayController;
  OverlayEntry entry = OverlayEntry(builder: (context) {
    return GestureDetector(
        behavior: (autoDismissOnTouchOutSide)
            ? HitTestBehavior.opaque
            : HitTestBehavior.deferToChild,
        onTap: (autoDismissOnTouchOutSide)
            ? () {
                overlayController?.removeOverlay();
                if (onDismiss != null) {
                  onDismiss();
                }
              }
            : null,
        child: OverlayWindow(
          context: context,
          content: content,
          targetKey: targetKey,
          popDirection: popDirection,
        ));
  });

  overlayController = OverlayController._(context, entry)..showOverlay();
  return overlayController;
}