added defaultPanelState property

CHANGELOG.md

@@ -1,21 +1,33 @@
+## [0.3.5] - [August 31, 2019]
+
+#### Features
+- Added the `defaultPanelState` property that changes whether the panel is either open or closed by default (`PanelState.OPEN` or `PanelState.CLOSED`)
+
+#### Documentation
+- Updated the documentation to reflect new features
+
+
+
 ## [0.3.4] - [April 16, 2019]
 
 #### Features
-- Added `slideDirection` property that changes how the panel slides open (either up or down)
+- Added the `slideDirection` property that changes how the panel slides open (either up or down)
 
 #### Documentation
 - Updated the documentation to reflect new features
 
 
+
 ## [0.3.3] - [April 6, 2019]
 
 #### Features
-- Added `isDraggable` property that allows/prevents dragging of the panel
+- Added the `isDraggable` property that allows/prevents dragging of the panel
 
 #### Documentation
 - Updated the documentation to reflect new features
 
 
+
 ## [0.3.2] - [April 5, 2019]
 
 #### Documentation

README.md

@@ -17,7 +17,7 @@ A draggable Flutter widget that makes implementing a SlidingUpPanel much easier!
 Add the following to your `pubspec.yaml` file:
 ```yaml
 dependencies:
-  sliding_up_panel: ^0.3.4
+  sliding_up_panel: ^0.3.5
 ```
 
 <br>
@@ -117,6 +117,7 @@ There are several options that allow for more control:
 | `parallaxOffset` | Allows for specifying the extent of the parallax effect in terms of the percentage the panel has slid up/down. Recommended values are within 0.0 and 1.0 where 0.0 is no parallax and 1.0 mimics a one-to-one scrolling effect. Defaults to a 10% parallax. |
 | `isDraggable` | Allows toggling of draggability of the SlidingUpPanel. Set this to false to prevent the user from being able to drag the panel up and down. Defaults to true. |
 | `slideDirection` | Either `SlideDirection.UP` or `SlideDirection.DOWN`. Indicates which way the panel should slide. Defaults to `UP`. If set to `DOWN`, the panel attaches itself to the top of the screen and is fully opened when the user swipes down on the panel. |
+| `defaultPanelState` | The default state of the panel; either PanelState.OPEN or `PanelState.CLOSED`. This value defaults to `PanelState.CLOSED` which indicates that the panel is in the closed position and must be opened. `PanelState.OPEN` indicates that by default the Panel is open and must be swiped closed by the user. |
 
 <br>
 <br>

lib/src/panel.dart

@@ -13,6 +13,11 @@ enum SlideDirection{
   DOWN,
 }
 
+enum PanelState{
+  OPEN,
+  CLOSED
+}
+
 class SlidingUpPanel extends StatefulWidget {
 
   /// The Widget that slides into view. When the
@@ -120,6 +125,12 @@ class SlidingUpPanel extends StatefulWidget {
   /// down on the panel.
   final SlideDirection slideDirection;
 
+  /// The default state of the panel; either PanelState.OPEN or PanelState.CLOSED.
+  /// This value defaults to PanelState.CLOSED which indicates that the panel is
+  /// in the closed position and must be opened. PanelState.OPEN indicates that
+  /// by default the Panel is open and must be swiped closed by the user.
+  final PanelState defaultPanelState;
+
   SlidingUpPanel({
     Key key,
     @required this.panel,
@@ -151,7 +162,8 @@ class SlidingUpPanel extends StatefulWidget {
     this.parallaxEnabled = false,
     this.parallaxOffset = 0.1,
     this.isDraggable = true,
-    this.slideDirection = SlideDirection.UP
+    this.slideDirection = SlideDirection.UP,
+    this.defaultPanelState = PanelState.CLOSED
   }) : assert(0 <= backdropOpacity && backdropOpacity <= 1.0),
        super(key: key);
 
@@ -195,6 +207,10 @@ class _SlidingUpPanelState extends State<SlidingUpPanel> with SingleTickerProvid
       _isPanelClosed,
       _isPanelShown,
     );
+
+    //set the default panel state
+    if(widget.defaultPanelState == PanelState.CLOSED) _ac.value = 0.0;
+    else if (widget.defaultPanelState == PanelState.OPEN) _ac.value = 1.0;
   }
 
   @override

pubspec.yaml

@@ -1,6 +1,6 @@
 name: sliding_up_panel
 description: A draggable Flutter widget that makes implementing a SlidingUpPanel much easier!
-version: 0.3.4
+version: 0.3.5
 author: Akshath Jain <[email protected]>
 homepage: https://github.com/akshathjain/sliding_up_panel