🎨 Improve code format with dart format.

Author: AlexV525

example/lib/pages/multi_assets_page.dart

@@ -454,7 +454,11 @@ class _MultiAssetsPageState extends State<MultiAssetsPage> {
   Widget get selectedAssetsWidget => AnimatedContainer(
         duration: kThemeChangeDuration,
         curve: Curves.easeInOut,
-        height: assets.isNotEmpty ? isDisplayingDetail ? 120.0 : 80.0 : 40.0,
+        height: assets.isNotEmpty
+            ? isDisplayingDetail
+                ? 120.0
+                : 80.0
+            : 40.0,
         child: Column(
           children: <Widget>[
             SizedBox(

example/lib/pages/single_assets_page.dart

@@ -426,7 +426,11 @@ class _SingleAssetPageState extends State<SingleAssetPage> {
   Widget get selectedAssetsWidget => AnimatedContainer(
         duration: kThemeChangeDuration,
         curve: Curves.easeInOut,
-        height: assets.isNotEmpty ? isDisplayingDetail ? 120.0 : 80.0 : 40.0,
+        height: assets.isNotEmpty
+            ? isDisplayingDetail
+                ? 120.0
+                : 80.0
+            : 40.0,
         child: Column(
           children: <Widget>[
             SizedBox(

lib/src/widget/asset_picker.dart

@@ -514,7 +514,9 @@ class AssetPicker extends StatelessWidget {
           duration: switchingPathDuration,
           curve: switchingPathCurve,
           top: isAppleOS
-              ? !isSwitchingPath ? -maxHeight : appBarHeight
+              ? !isSwitchingPath
+                  ? -maxHeight
+                  : appBarHeight
               : -(!isSwitchingPath ? maxHeight : 1.0),
           child: AnimatedOpacity(
             duration: switchingPathDuration,