fix: Fixed threshold and added instant load page

stream_chat_v1/lib/main.dart

@@ -6,6 +6,7 @@ import 'package:example/group_info_screen.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:lottie/lottie.dart';
@@ -102,11 +103,12 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
 
         var now = DateTime.now().millisecondsSinceEpoch;
 
-        if (now - timeOfStartMs > 1000) {
+        if (now - timeOfStartMs > 1500) {
+          SchedulerBinding.instance.addPostFrameCallback((timeStamp) {
             _animationController.forward();
+          });
         } else {
-          var diff = 1000 - (now - timeOfStartMs);
-          Future.delayed(Duration(milliseconds: diff)).then((value) {
+          Future.delayed(Duration(milliseconds: 1500)).then((value) {
             _animationController.forward();
           });
         }
@@ -137,7 +139,7 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
                   color: _colorAnimation == null
                       ? Color(0xff005FFF)
                       : _colorAnimation.value,
-                  child: _initData == null
+                  child: !_animationController.isAnimating
                       ? Lottie.asset(
                           'assets/floating_boat.json',
                           alignment: Alignment.center,
@@ -145,7 +147,6 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
                       : Container(),
                 );
               }),
-          if (_initData != null)
           AnimatedBuilder(
             animation: _animation,
             builder: (context, snapshot) {
@@ -170,11 +171,11 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
 
   @override
   Widget build(BuildContext context) {
-    if (_initData == null || !_animCompleted) {
-      return _buildAnimation();
-    }
-
-    return PreferenceBuilder<int>(
+    return Stack(
+      alignment: Alignment.center,
+      children: [
+        if (_initData != null)
+          PreferenceBuilder<int>(
             preference: _initData.preferences.getInt(
               'theme',
               defaultValue: 0,
@@ -212,6 +213,9 @@ class _MyAppState extends State<MyApp> with TickerProviderStateMixin {
                   ? Routes.CHOOSE_USER
                   : Routes.HOME,
             ),
+          ),
+        if (!_animCompleted) _buildAnimation(),
+      ],
     );
   }
 }