show static method

void show(BuildContext context, { Widget? progressIndicator, ThemeData? themeData, Color? overlayColor, double? overlayFromTop, double? overlayFromBottom, bool isAppbarOverlay = true, bool isBottomBarOverlay = true, bool isSafeAreaOverlay = true, })

If you need to show an normal overlayloader, just call Loader.show(context) with a build context. BuildContext is a required param.

Implementation

static void show(
  BuildContext context, {

  /// Define your custom progress indicator if you want [optional]
  Widget? progressIndicator,

  /// Define Theme [optional]
  ThemeData? themeData,

  /// Define Overlay color [optional]
  Color? overlayColor,

  /// overlayTop mean overlay start from Top margin.
  ///
  /// If you have custom appbar and you want to show loader without custom
  /// appbar then will be custom appbar height here and also you have to make
  /// sure [isAppbarOverlay = false].
  double? overlayFromTop,

  /// overlayFromBottom mean overlay end to Bottom margin.
  ///
  /// If you have custom BottomAppBar and you want to show loader without
  /// custom BottomAppBar then will be custom BottomAppBar height here and
  /// also you have to make sure [isBottomBarOverlay = false].
  double? overlayFromBottom,

  /// isAppbarOverlay default true.
  ///
  /// If you need to appbar outside from overlay loader then make it false.
  bool isAppbarOverlay = true,

  /// isBottomBarOverlay default true.
  ///
  /// If you need to BottomBar outside from overlay loader then make it false.
  bool isBottomBarOverlay = true,

  /// isSafeAreaOverlay default true.
  ///
  /// If you don't want to overlay  your safe area like statusBar and
  /// bottomNavBar then make it false.
  bool isSafeAreaOverlay = true,
}) {
  var safeBottomPadding = MediaQuery.of(context).padding.bottom;
  var defaultPaddingTop = 0.0;
  var defaultPaddingBottom = 0.0;
  if (!isAppbarOverlay) {
    isSafeAreaOverlay = false;
  }
  if (!isSafeAreaOverlay) {
    defaultPaddingTop = defaultValue;
    defaultPaddingBottom = defaultValue + safeBottomPadding;
  } else {
    defaultPaddingTop = defaultValue;
    defaultPaddingBottom = defaultValue;
  }

  _overlayState = Overlay.of(context);
  if (_currentLoader == null) {
    ///Create current Loader Entry
    _currentLoader = OverlayEntry(builder: (context) {
      return Stack(
        children: <Widget>[
          _overlayWidget(
              isSafeAreaOverlay,
              overlayColor ?? Color(0x99ffffff),
              isAppbarOverlay ? 0.0 : overlayFromTop ?? defaultPaddingTop,
              isBottomBarOverlay
                  ? 0.0
                  : overlayFromBottom ?? defaultPaddingBottom),
          Center(
              child: Loader._(
            progressIndicator,
            themeData,
          )),
        ],
      );
    });

    try {
      widgetBind?.addPostFrameCallback((_) {
        if (_currentLoader != null) {
          _overlayState?.insert(_currentLoader!);
        }
      });
    } catch (e) {
      print(e.toString());
    }
  }
}