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✨ Scroll gradiant to think as well

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This commit is contained in:
LittleSheep
2025-11-02 23:55:00 +08:00
parent 848439f664
commit dd17b2b9c1
2 changed files with 239 additions and 92 deletions
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181
lib/screens/thought/think.dart
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@@ -1,4 +1,5 @@
import "dart:convert";
import "dart:math" as math;
import "package:dio/dio.dart";
import "package:easy_localization/easy_localization.dart";
import "package:flutter/material.dart";
@@ -57,6 +58,9 @@ class ThoughtScreen extends HookConsumerWidget {
final listController = useMemoized(() => ListController(), []);
// Scroll animation notifiers
final bottomGradientNotifier = useState(ValueNotifier<double>(0.0));
// Update local thoughts when provider data changes
useEffect(() {
thoughts.whenData((data) {
@@ -86,6 +90,20 @@ class ThoughtScreen extends HookConsumerWidget {
return null;
}, [localThoughts.value.length, isStreaming.value]);
// Add scroll listener for gradient animations
useEffect(() {
void onScroll() {
// Update gradient animations
final pixels = scrollController.position.pixels;
// Bottom gradient: appears when not at bottom (pixels > 0)
bottomGradientNotifier.value.value = (pixels / 500.0).clamp(0.0, 1.0);
}
scrollController.addListener(onScroll);
return () => scrollController.removeListener(onScroll);
}, [scrollController]);
void sendMessage() async {
if (messageController.text.trim().isEmpty) return;
@@ -258,65 +276,120 @@ class ThoughtScreen extends HookConsumerWidget {
const Gap(8),
],
),
body: Center(
child: Container(
constraints: BoxConstraints(maxWidth: 640),
child: Column(
children: [
Expanded(
child: thoughts.when(
data:
(thoughtList) => SuperListView.builder(
listController: listController,
controller: scrollController,
padding: const EdgeInsets.only(top: 16, bottom: 16),
reverse: true,
itemCount:
localThoughts.value.length +
(isStreaming.value ? 1 : 0),
itemBuilder: (context, index) {
if (isStreaming.value && index == 0) {
return ThoughtItem(
isStreaming: true,
streamingText: streamingText.value,
reasoningChunks: reasoningChunks.value,
streamingFunctionCalls: functionCalls.value,
);
}
final thoughtIndex =
isStreaming.value ? index - 1 : index;
final thought = localThoughts.value[thoughtIndex];
return ThoughtItem(
thought: thought,
thoughtIndex: thoughtIndex,
);
},
body: Stack(
children: [
// Thoughts list
Center(
child: Container(
constraints: BoxConstraints(maxWidth: 640),
child: Column(
children: [
Expanded(
child: thoughts.when(
data:
(thoughtList) => SuperListView.builder(
listController: listController,
controller: scrollController,
padding: EdgeInsets.only(
top: 16,
bottom:
MediaQuery.of(context).padding.bottom +
80, // Leave space for thought input
),
reverse: true,
itemCount:
localThoughts.value.length +
(isStreaming.value ? 1 : 0),
itemBuilder: (context, index) {
if (isStreaming.value && index == 0) {
return ThoughtItem(
isStreaming: true,
streamingText: streamingText.value,
reasoningChunks: reasoningChunks.value,
streamingFunctionCalls: functionCalls.value,
);
}
final thoughtIndex =
isStreaming.value ? index - 1 : index;
final thought = localThoughts.value[thoughtIndex];
return ThoughtItem(
thought: thought,
thoughtIndex: thoughtIndex,
);
},
),
loading:
() =>
const Center(child: CircularProgressIndicator()),
error:
(error, _) => ResponseErrorWidget(
error: error,
onRetry:
() =>
selectedSequenceId.value != null
? ref.invalidate(
thoughtSequenceProvider(
selectedSequenceId.value!,
),
)
: null,
),
),
),
],
),
),
),
// Bottom gradient - appears when scrolling towards newer thoughts (behind thought input)
AnimatedBuilder(
animation: bottomGradientNotifier.value,
builder:
(context, child) => Positioned(
left: 0,
right: 0,
bottom: 0,
child: Opacity(
opacity: bottomGradientNotifier.value.value,
child: Container(
height: math.min(
MediaQuery.of(context).size.height * 0.1,
128,
),
loading:
() => const Center(child: CircularProgressIndicator()),
error:
(error, _) => ResponseErrorWidget(
error: error,
onRetry:
() =>
selectedSequenceId.value != null
? ref.invalidate(
thoughtSequenceProvider(
selectedSequenceId.value!,
),
)
: null,
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.bottomCenter,
end: Alignment.topCenter,
colors: [
Theme.of(
context,
).colorScheme.surfaceContainer.withOpacity(0.8),
Theme.of(
context,
).colorScheme.surfaceContainer.withOpacity(0.0),
],
),
),
),
),
),
),
// Thought Input positioned above gradient (higher z-index)
Positioned(
left: 0,
right: 0,
bottom: 0, // At the very bottom, above gradient
child: Center(
child: Container(
constraints: BoxConstraints(maxWidth: 640),
child: ThoughtInput(
messageController: messageController,
isStreaming: isStreaming.value,
onSend: sendMessage,
),
),
ThoughtInput(
messageController: messageController,
isStreaming: isStreaming.value,
onSend: sendMessage,
),
],
),
),
),
],
),
);
}