From f635df038a76ed3b6af185741b3a977a13574288 Mon Sep 17 00:00:00 2001
From: Muhammad Hamza <hamza.6.shakeel@gmail.com>
Date: Sun, 10 Oct 2021 16:30:14 +0500
Subject: [PATCH] new animation added

---
 .../lib/animations/entrance_fader.dart        | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 packages/simplex_app/lib/animations/entrance_fader.dart

diff --git a/packages/simplex_app/lib/animations/entrance_fader.dart b/packages/simplex_app/lib/animations/entrance_fader.dart
new file mode 100644
index 000000000..4ddcd52c3
--- /dev/null
+++ b/packages/simplex_app/lib/animations/entrance_fader.dart
@@ -0,0 +1,70 @@
+import 'package:flutter/material.dart';
+
+class EntranceFader extends StatefulWidget {
+  /// Child to be animated on entrance
+  final Widget? child;
+
+  /// Delay after which the animation will start
+  final Duration delay;
+
+  /// Duration of entrance animation
+  final Duration duration;
+
+  /// Starting point from which the widget will fade to its default position
+  final Offset offset;
+
+  const EntranceFader({
+    Key? key,
+    this.child,
+    this.delay = const Duration(milliseconds: 0),
+    this.duration = const Duration(milliseconds: 400),
+    this.offset = const Offset(0.0, 32.0),
+  }) : super(key: key);
+
+  @override
+  EntranceFaderState createState() {
+    return EntranceFaderState();
+  }
+}
+
+class EntranceFaderState extends State<EntranceFader>
+    with SingleTickerProviderStateMixin {
+  AnimationController? _controller;
+  Animation? _dxAnimation;
+  Animation? _dyAnimation;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = AnimationController(vsync: this, duration: widget.duration);
+    _dxAnimation =
+        Tween(begin: widget.offset.dx, end: 0.0).animate(_controller!);
+    _dyAnimation =
+        Tween(begin: widget.offset.dy, end: 0.0).animate(_controller!);
+    Future.delayed(widget.delay, () {
+      if (mounted) {
+        _controller!.forward();
+      }
+    });
+  }
+
+  @override
+  void dispose() {
+    _controller!.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedBuilder(
+      animation: _controller!,
+      builder: (context, child) => Opacity(
+        opacity: _controller!.value,
+        child: Transform.translate(
+          offset: Offset(_dxAnimation!.value, _dyAnimation!.value),
+          child: widget.child,
+        ),
+      ),
+    );
+  }
+}