可设置禁止下拉刷新

Author: While1true

lib/Refresh.dart

@@ -89,6 +89,7 @@ class RefreshLayout extends StatefulWidget {
  const RefreshLayout({
  Key key,
  @required this.child,
+ this.canrefresh: true,
  this.canloading: true,
  this.displacement: 20.0,
  @required this.onRefresh,
@@ -135,6 +136,8 @@ class RefreshLayout extends StatefulWidget {
  final ScrollNotificationPredicate notificationPredicate;
 
  final bool canloading;
+ final bool canrefresh;
+
 // void dissmiss() {
 // if(state!=null)
 // state._dismiss(_RefreshLayoutMode.canceled);
@@ -271,7 +274,8 @@ class RefreshLayoutState extends State<RefreshLayout>
  else if (notification is ScrollEndNotification) {
  switch (_mode) {
  case _RefreshLayoutMode.armed:
- _show();
+ if (widget.canrefresh)
+ _show();
  break;
  case _RefreshLayoutMode.drag:
  _dismiss(_RefreshLayoutMode.canceled);
@@ -481,7 +485,8 @@ class RefreshLayoutState extends State<RefreshLayout>
  alignment: _isIndicatorAtTop
  ? Alignment.topCenter
  : Alignment.bottomCenter,
- child: _isIndicatorAtTop ? new ScaleTransition(
+ child: _isIndicatorAtTop ? (widget.canrefresh
+ ? new ScaleTransition(
  scale: _scaleFactor,
  child: new AnimatedBuilder(
  animation: _positionController,
@@ -493,7 +498,8 @@ class RefreshLayoutState extends State<RefreshLayout>
  );
  },
  ),
- ) : new AnimatedBuilder(
+ )
+ : null) : new AnimatedBuilder(
  animation: _positionController,
  builder: (BuildContext context, Widget child) {
  return new Container(decoration: new BoxDecoration(