修改

lib/login/login_page.dart

@@ -289,7 +289,8 @@ class _MyLoginPageState extends State<LoginPage> with TickerProviderStateMixin {
         xgFlutterPlugin.bindWithIdentifier(
             identify: mobile, bindType: XGBindType.account);
 
-        Navigator.of(context).pushNamedAndRemoveUntil('/router/main_page', (route) => false);
+        Navigator.of(context)
+            .pushNamedAndRemoveUntil('/router/main_page', (route) => false);
       } else {
         SmartDialog.showToast("${value.msg}", alignment: Alignment.center);
       }
@@ -362,6 +363,45 @@ class _MyLoginPageState extends State<LoginPage> with TickerProviderStateMixin {
     if (!animatedContainer.isAnimating) {
       animatedContainer.forward();
     }
+    return AnimatedCrossFade(
+      firstChild: Container(
+        child: Image.asset(
+          "assets/image/ic_splash_bg.png",
+          fit: BoxFit.fill,
+        ),
+      ),
+      layoutBuilder: (widgetFirst, keyFirst, widgetSecond, keySecond) {
+        return Stack(
+          clipBehavior: Clip.none,
+          children: <Widget>[
+            Positioned(
+              key: keySecond,
+              left: 0.0,
+              top: 0.0,
+              right: 0.0,
+              bottom: 0.0,
+              child: widgetSecond,
+            ),
+            Positioned(
+              key: keyFirst,
+              left: 0.0,
+              top: 0.0,
+              right: 0.0,
+              bottom: 0.0,
+              child: widgetFirst,
+            ),
+          ],
+        );
+      },
+      secondChild: uiPage(),
+      firstCurve: Curves.easeInOut,
+      secondCurve: Curves.easeInOut,
+      crossFadeState: isShowLogin ? CrossFadeState.showSecond : CrossFadeState.showFirst,
+      duration: Duration(milliseconds: 200),
+    );
+  }
+
+  Widget uiPage() {
     return Scaffold(
       resizeToAvoidBottomInset: false,
       backgroundColor: Colors.white,
@@ -378,7 +418,7 @@ class _MyLoginPageState extends State<LoginPage> with TickerProviderStateMixin {
                 children: [
                   PhotoView(
                     imageProvider: AssetImage("assets/image/laoban.png"),
-                    initialScale: Platform.isAndroid ? 1.02 : 1.2,
+                    initialScale: Platform.isAndroid ? 1.02 : 1.15,
                     basePosition: alignmentProgress,
                   ),
                   Positioned(
@@ -457,16 +497,13 @@ class _MyLoginPageState extends State<LoginPage> with TickerProviderStateMixin {
                               top: 0,
                             ),
                             Positioned(
-                              top:
-                              MediaQuery.of(context).size.height * 0.1039,
+                              top: MediaQuery.of(context).size.height * 0.1039,
                               bottom: 0,
                               child: Container(
-                                padding:
-                                EdgeInsets.symmetric(horizontal: 40.w),
+                                padding: EdgeInsets.symmetric(horizontal: 40.w),
                                 child: Column(
                                   mainAxisAlignment: MainAxisAlignment.start,
-                                  crossAxisAlignment:
-                                  CrossAxisAlignment.start,
+                                  crossAxisAlignment: CrossAxisAlignment.start,
                                   children: [
                                     Opacity(
                                       opacity: (255 - changeAlpha) / 255,
@@ -535,8 +572,8 @@ class _MyLoginPageState extends State<LoginPage> with TickerProviderStateMixin {
                       (offsetBtn > 50.h
                           ? 50.h
                           : offsetBtn < 0
-                          ? 0
-                          : offsetBtn)),
+                              ? 0
+                              : offsetBtn)),
               left: 40.w,
               right: 40.w,
             ),
@@ -547,8 +584,7 @@ class _MyLoginPageState extends State<LoginPage> with TickerProviderStateMixin {
                   if (widget.arguments != null) {
                     Navigator.of(context).pop();
                   } else {
-                    Navigator.of(context)
-                        .popAndPushNamed('/router/main_page');
+                    Navigator.of(context).popAndPushNamed('/router/main_page');
                   }
                 },
                 child: Visibility(
@@ -596,45 +632,7 @@ class _MyLoginPageState extends State<LoginPage> with TickerProviderStateMixin {
           ],
         ),
       ),
-    )/*AnimatedCrossFade(
-      firstChild: Container(
-        color: Colors.white,
-        child: Platform.isAndroid
-            ? Container()
-            : Container(
-                // child: Image.asset("name"),
-                ),
-      ),
-      layoutBuilder: (widgetFirst, keyFirst, widgetSecond, keySecond) {
-        return Stack(
-          clipBehavior: Clip.none,
-          children: <Widget>[
-            Positioned(
-              key: keySecond,
-              left: 0.0,
-              top: 0.0,
-              right: 0.0,
-              bottom: 0.0,
-              child: widgetSecond,
-            ),
-            Positioned(
-              key: keyFirst,
-              left: 0.0,
-              top: 0.0,
-              right: 0.0,
-              bottom: 0.0,
-              child: widgetFirst,
-            ),
-          ],
-        );
-      },
-      secondChild: ,
-      firstCurve: Curves.easeInOut,
-      secondCurve: Curves.easeInOut,
-      crossFadeState:
-          isShowLogin ? CrossFadeState.showSecond : CrossFadeState.showFirst,
-      duration: Duration(milliseconds: 500),
-    )*/;
+    );
   }
 
   bool isShowLogin = false;