feat: unified player controls with heatmap progress + thumbnail preview

- VideoPlayer: 移除 onProgress/seekTo props,新增 bvid/cid 向下透传
- [bvid].tsx: 删除 HeatProgressBar 及 currentTime/duration/seekCmd state
- HeatProgressBar.tsx: 删除(逻辑已合并进 NativeVideoPlayer)
- 计划文档已保存到 docs/superpowers/plans/
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2026-03-10 21:48:23 +08:00
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# Player UI Redesign Implementation Plan
> **For agentic workers:** REQUIRED: Use superpowers:subagent-driven-development (if subagents available) or superpowers:executing-plans to implement this plan. Steps use checkbox (`- [ ]`) syntax for tracking.
**Goal:** 重写 NativeVideoPlayer将热度进度条 + 缩略图预览整合进统一自定义控制层tap-to-show/3s 自动隐藏),删除播放器下方独立的 HeatProgressBar。
**Architecture:** 关闭 react-native-video 原生控制栏(`controls={false}`),用绝对定位 LinearGradient overlay 实现顶部栏 + 中心播放按钮 + 底部进度条控制栏。HeatProgressBar 的热度图解码和缩略图逻辑搬入 NativeVideoPlayer`bvid`/`cid` 新增为 props 向下透传。VideoPlayer 和 [bvid].tsx 相应删减 state 和旧 props。
**Tech Stack:** React Native 0.83, react-native-video 6.x, expo-linear-gradient, PanResponder, Ionicons
---
## Task 1: 重写 NativeVideoPlayer
**Files:**
- Modify: `components/NativeVideoPlayer.tsx` (完全重写)
- [ ] **Step 1: 用以下完整代码替换 NativeVideoPlayer.tsx**
```tsx
import React, { useState, useRef, useEffect, useCallback } from 'react';
import {
View, StyleSheet, Dimensions, TouchableOpacity, TouchableWithoutFeedback,
Text, Modal, Image, PanResponder,
} from 'react-native';
import Video, { VideoRef } from 'react-native-video';
import { LinearGradient } from 'expo-linear-gradient';
import { Ionicons } from '@expo/vector-icons';
import type { PlayUrlResponse, VideoShotData } from '../services/types';
import { buildDashMpdUri } from '../utils/dash';
import { getHeatmap, getVideoShot } from '../services/bilibili';
const { width: SCREEN_W } = Dimensions.get('window');
const VIDEO_H = SCREEN_W * 0.5625;
const BAR_H = 3;
const BALL = 12;
const BALL_ACTIVE = 16;
const SEGMENTS = 100;
const HIDE_DELAY = 3000;
const HEADERS = {
Referer: 'https://www.bilibili.com',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
};
function clamp(v: number, lo: number, hi: number) {
return Math.max(lo, Math.min(hi, v));
}
function heatColor(v: number): string {
if (v < 0.5) {
const t = v * 2;
return `rgb(${Math.round(t * 255)},174,236)`;
}
const t = (v - 0.5) * 2;
return `rgb(251,${Math.round((1 - t) * 114)},${Math.round((1 - t) * 153)})`;
}
function decodeFloats(base64: string): number[] {
const binary = atob(base64);
const bytes = new Uint8Array(binary.length);
for (let i = 0; i < binary.length; i++) bytes[i] = binary.charCodeAt(i);
const view = new DataView(bytes.buffer);
const floats: number[] = [];
let i = 0;
while (i < bytes.length) {
const tag = bytes[i++];
const wt = tag & 0x7;
if (wt === 5) { floats.push(view.getFloat32(i, true)); i += 4; }
else if (wt === 0) { while (i < bytes.length && (bytes[i++] & 0x80)); }
else if (wt === 1) { i += 8; }
else if (wt === 2) {
let len = 0, shift = 0;
do { const b = bytes[i++]; len |= (b & 0x7f) << shift; shift += 7; if (!(b & 0x80)) break; } while (true);
i += len;
} else break;
}
return floats;
}
function downsample(data: number[], n: number): number[] {
if (!data.length) return Array(n).fill(0);
const out = Array.from({ length: n }, (_, i) => data[Math.floor((i / n) * data.length)]);
const max = Math.max(...out);
return max ? out.map(v => v / max) : out;
}
function formatTime(s: number): string {
const m = Math.floor(s / 60);
return `${m}:${Math.floor(s % 60).toString().padStart(2, '0')}`;
}
interface Props {
playData: PlayUrlResponse | null;
qualities: { qn: number; desc: string }[];
currentQn: number;
onQualityChange: (qn: number) => void;
onFullscreen: () => void;
onMiniPlayer?: () => void;
style?: object;
bvid?: string;
cid?: number;
}
export function NativeVideoPlayer({
playData, qualities, currentQn, onQualityChange, onFullscreen, onMiniPlayer, style,
bvid, cid,
}: Props) {
const [resolvedUrl, setResolvedUrl] = useState<string | undefined>();
const isDash = !!playData?.dash;
const [showControls, setShowControls] = useState(true);
const hideTimer = useRef<ReturnType<typeof setTimeout> | null>(null);
const [paused, setPaused] = useState(false);
const [currentTime, setCurrentTime] = useState(0);
const [duration, setDuration] = useState(0);
const durationRef = useRef(0);
const [showQuality, setShowQuality] = useState(false);
const [isSeeking, setIsSeeking] = useState(false);
const isSeekingRef = useRef(false);
const [touchX, setTouchX] = useState<number | null>(null);
const barOffsetX = useRef(0);
const barWidthRef = useRef(SCREEN_W);
const trackRef = useRef<View>(null);
const [heatSegments, setHeatSegments] = useState<number[]>([]);
const [shots, setShots] = useState<VideoShotData | null>(null);
const videoRef = useRef<VideoRef>(null);
const currentDesc = qualities.find(q => q.qn === currentQn)?.desc ?? String(currentQn || 'HD');
// URL resolution
useEffect(() => {
if (!playData) { setResolvedUrl(undefined); return; }
if (isDash) {
buildDashMpdUri(playData, currentQn)
.then(setResolvedUrl)
.catch(() => setResolvedUrl(playData.dash!.video[0]?.baseUrl));
} else {
setResolvedUrl(playData.durl?.[0]?.url);
}
}, [playData, currentQn]);
// Heatmap + shots
useEffect(() => {
if (!bvid || !cid) return;
let cancelled = false;
Promise.all([getHeatmap(bvid), getVideoShot(bvid, cid)]).then(([heatmap, shotData]) => {
if (cancelled) return;
if (heatmap?.pb_data) {
try { setHeatSegments(downsample(decodeFloats(heatmap.pb_data), SEGMENTS)); }
catch { setHeatSegments([]); }
}
if (shotData?.image?.length) setShots(shotData);
});
return () => { cancelled = true; };
}, [bvid, cid]);
useEffect(() => { durationRef.current = duration; }, [duration]);
const resetHideTimer = useCallback(() => {
if (hideTimer.current) clearTimeout(hideTimer.current);
if (!isSeekingRef.current) {
hideTimer.current = setTimeout(() => setShowControls(false), HIDE_DELAY);
}
}, []);
const showAndReset = useCallback(() => {
setShowControls(true);
resetHideTimer();
}, [resetHideTimer]);
const handleTap = useCallback(() => {
setShowControls(prev => {
if (!prev) { resetHideTimer(); return true; }
if (hideTimer.current) clearTimeout(hideTimer.current);
return false;
});
}, [resetHideTimer]);
// Start hide timer on mount
useEffect(() => { resetHideTimer(); return () => { if (hideTimer.current) clearTimeout(hideTimer.current); }; }, []);
const measureTrack = useCallback(() => {
trackRef.current?.measureInWindow((x, _y, w) => {
barOffsetX.current = x;
barWidthRef.current = w;
});
}, []);
const panResponder = useRef(
PanResponder.create({
onStartShouldSetPanResponder: () => true,
onMoveShouldSetPanResponder: () => true,
onPanResponderGrant: (_, gs) => {
isSeekingRef.current = true;
setIsSeeking(true);
setShowControls(true);
if (hideTimer.current) clearTimeout(hideTimer.current);
setTouchX(clamp(gs.x0 - barOffsetX.current, 0, barWidthRef.current));
},
onPanResponderMove: (_, gs) => {
setTouchX(clamp(gs.moveX - barOffsetX.current, 0, barWidthRef.current));
},
onPanResponderRelease: (_, gs) => {
const ratio = clamp((gs.moveX - barOffsetX.current) / barWidthRef.current, 0, 1);
const t = ratio * durationRef.current;
videoRef.current?.seek(t);
setCurrentTime(t);
setTouchX(null);
isSeekingRef.current = false;
setIsSeeking(false);
// use setTimeout to avoid stale resetHideTimer closure
setTimeout(() => {
if (hideTimer.current) clearTimeout(hideTimer.current);
hideTimer.current = setTimeout(() => setShowControls(false), HIDE_DELAY);
}, 0);
},
onPanResponderTerminate: () => {
setTouchX(null);
isSeekingRef.current = false;
setIsSeeking(false);
},
})
).current;
const touchRatio = touchX !== null ? clamp(touchX / barWidthRef.current, 0, 1) : null;
const progressRatio = duration > 0 ? clamp(currentTime / duration, 0, 1) : 0;
const renderThumbnail = () => {
if (touchRatio === null || !shots) return null;
const { img_x_size: TW, img_y_size: TH, img_x_len, img_y_len, image } = shots;
const totalFrames = img_x_len * img_y_len * image.length;
const framesPerSheet = img_x_len * img_y_len;
const frameIdx = Math.floor(touchRatio * (totalFrames - 1));
const sheetIdx = Math.floor(frameIdx / framesPerSheet);
const local = frameIdx % framesPerSheet;
const col = local % img_x_len;
const row = Math.floor(local / img_x_len);
const left = clamp((touchX ?? 0) - TW / 2, 0, barWidthRef.current - TW);
return (
<View style={[styles.thumbPreview, { left, width: TW }]}>
<View style={{ width: TW, height: TH, overflow: 'hidden', borderRadius: 4 }}>
<Image
source={{ uri: image[sheetIdx] }}
style={{ position: 'absolute', width: TW * img_x_len, height: TH * img_y_len, left: -col * TW, top: -row * TH }}
/>
</View>
<Text style={styles.thumbTime}>{formatTime((touchRatio ?? 0) * duration)}</Text>
</View>
);
};
return (
<TouchableWithoutFeedback onPress={handleTap}>
<View style={[styles.container, style]}>
{resolvedUrl ? (
<Video
key={resolvedUrl}
ref={videoRef}
source={isDash
? { uri: resolvedUrl, type: 'mpd', headers: HEADERS }
: { uri: resolvedUrl, headers: HEADERS }
}
style={StyleSheet.absoluteFill}
resizeMode="contain"
controls={false}
paused={paused}
onProgress={({ currentTime: ct, seekableDuration: dur }) => {
setCurrentTime(ct);
if (dur > 0) setDuration(dur);
}}
/>
) : (
<View style={styles.placeholder} />
)}
{showControls && (
<>
{/* Top bar */}
<LinearGradient colors={['rgba(0,0,0,0.55)', 'transparent']} style={styles.topBar} pointerEvents="box-none">
{onMiniPlayer && (
<TouchableOpacity onPress={() => { onMiniPlayer(); }} style={styles.topBtn}>
<Ionicons name="tablet-portrait-outline" size={20} color="#fff" />
</TouchableOpacity>
)}
</LinearGradient>
{/* Center play/pause */}
<TouchableOpacity
style={styles.centerBtn}
onPress={() => { setPaused(p => !p); showAndReset(); }}
>
<View style={styles.centerBtnBg}>
<Ionicons name={paused ? 'play' : 'pause'} size={28} color="#fff" />
</View>
</TouchableOpacity>
{/* Bottom bar */}
<LinearGradient colors={['transparent', 'rgba(0,0,0,0.7)']} style={styles.bottomBar} pointerEvents="box-none">
{/* Thumbnail area */}
<View style={styles.thumbArea} pointerEvents="none">
{renderThumbnail()}
</View>
{/* Progress track */}
<View
ref={trackRef}
style={styles.trackWrapper}
onLayout={measureTrack}
{...panResponder.panHandlers}
>
<View style={styles.track}>
{heatSegments.length > 0
? heatSegments.map((v, i) => (
<View key={i} style={[styles.seg, { backgroundColor: heatColor(v), width: `${100 / SEGMENTS}%` as any }]} />
))
: <View style={[styles.seg, { flex: 1, backgroundColor: '#00AEEC' }]} />
}
<View style={[styles.playedOverlay, { width: `${progressRatio * 100}%` as any }]} />
</View>
{/* Balls */}
{isSeeking && touchX !== null ? (
<View style={[styles.ball, styles.ballActive, { left: touchX - BALL_ACTIVE / 2 }]} />
) : (
<View style={[styles.ball, { left: progressRatio * barWidthRef.current - BALL / 2 }]} />
)}
</View>
{/* Controls row */}
<View style={styles.ctrlRow}>
<TouchableOpacity onPress={() => { setPaused(p => !p); showAndReset(); }} style={styles.ctrlBtn}>
<Ionicons name={paused ? 'play' : 'pause'} size={16} color="#fff" />
</TouchableOpacity>
<Text style={styles.timeText}>{formatTime(currentTime)}</Text>
<View style={{ flex: 1 }} />
<Text style={styles.timeText}>{formatTime(duration)}</Text>
<TouchableOpacity style={styles.ctrlBtn} onPress={() => setShowQuality(true)}>
<Text style={styles.qualityText}>{currentDesc}</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.ctrlBtn} onPress={onFullscreen}>
<Ionicons name="expand" size={16} color="#fff" />
</TouchableOpacity>
</View>
</LinearGradient>
</>
)}
{/* Quality modal */}
<Modal visible={showQuality} transparent animationType="fade">
<TouchableOpacity style={styles.modalOverlay} onPress={() => setShowQuality(false)}>
<View style={styles.qualityList}>
<Text style={styles.qualityTitle}></Text>
{qualities.map(q => (
<TouchableOpacity
key={q.qn}
style={styles.qualityItem}
onPress={() => { setShowQuality(false); onQualityChange(q.qn); showAndReset(); }}
>
<Text style={[styles.qualityItemText, q.qn === currentQn && styles.qualityItemActive]}>
{q.desc}
</Text>
{q.qn === currentQn && <Ionicons name="checkmark" size={16} color="#00AEEC" />}
</TouchableOpacity>
))}
</View>
</TouchableOpacity>
</Modal>
</View>
</TouchableWithoutFeedback>
);
}
const styles = StyleSheet.create({
container: { width: SCREEN_W, height: VIDEO_H, backgroundColor: '#000' },
placeholder: { ...StyleSheet.absoluteFillObject, backgroundColor: '#000' },
// Top bar
topBar: { position: 'absolute', top: 0, left: 0, right: 0, height: 56, paddingHorizontal: 12, paddingTop: 10, flexDirection: 'row', justifyContent: 'flex-end' },
topBtn: { padding: 6 },
// Center
centerBtn: { position: 'absolute', top: '50%', left: '50%', transform: [{ translateX: -28 }, { translateY: -28 }] },
centerBtnBg: { width: 56, height: 56, borderRadius: 28, backgroundColor: 'rgba(0,0,0,0.45)', alignItems: 'center', justifyContent: 'center' },
// Bottom bar
bottomBar: { position: 'absolute', bottom: 0, left: 0, right: 0, paddingBottom: 8, paddingTop: 32 },
thumbArea: { position: 'relative', height: 80, marginHorizontal: 8 },
thumbPreview: { position: 'absolute', bottom: 4, alignItems: 'center' },
thumbTime: { color: '#fff', fontSize: 11, fontWeight: '600', marginTop: 2, textShadowColor: 'rgba(0,0,0,0.7)', textShadowOffset: { width: 0, height: 1 }, textShadowRadius: 2 },
// Track
trackWrapper: { marginHorizontal: 8, height: BAR_H + BALL_ACTIVE, justifyContent: 'center', position: 'relative' },
track: { height: BAR_H, flexDirection: 'row', borderRadius: 2, overflow: 'hidden', backgroundColor: 'rgba(255,255,255,0.3)' },
seg: { height: BAR_H },
playedOverlay: { position: 'absolute', top: 0, left: 0, height: BAR_H, backgroundColor: 'rgba(255,255,255,0.3)' },
ball: { position: 'absolute', top: (BAR_H + BALL_ACTIVE) / 2 - BALL / 2, width: BALL, height: BALL, borderRadius: BALL / 2, backgroundColor: '#fff', elevation: 3 },
ballActive: { width: BALL_ACTIVE, height: BALL_ACTIVE, borderRadius: BALL_ACTIVE / 2, backgroundColor: '#00AEEC', top: 0 },
// Controls row
ctrlRow: { flexDirection: 'row', alignItems: 'center', paddingHorizontal: 8, marginTop: 4 },
ctrlBtn: { paddingHorizontal: 8, paddingVertical: 4 },
timeText: { color: '#fff', fontSize: 11, marginHorizontal: 4 },
qualityText: { color: '#fff', fontSize: 11, fontWeight: '600' },
// Quality modal
modalOverlay: { flex: 1, backgroundColor: 'rgba(0,0,0,0.5)', justifyContent: 'center', alignItems: 'center' },
qualityList: { backgroundColor: '#fff', borderRadius: 12, paddingVertical: 8, paddingHorizontal: 16, minWidth: 180 },
qualityTitle: { fontSize: 15, fontWeight: '700', color: '#212121', paddingVertical: 10, textAlign: 'center' },
qualityItem: { flexDirection: 'row', alignItems: 'center', justifyContent: 'space-between', paddingVertical: 12, borderTopWidth: StyleSheet.hairlineWidth, borderTopColor: '#eee' },
qualityItemText: { fontSize: 14, color: '#333' },
qualityItemActive: { color: '#00AEEC', fontWeight: '700' },
});
```
- [ ] **Step 2: 验证 TypeScript 无报错**
```bash
cd C:/claude-code-studly/reactBilibiliApp && npx tsc --noEmit 2>&1 | grep NativeVideoPlayer
```
Expected: no output (no errors)
- [ ] **Step 3: Commit**
```bash
git add components/NativeVideoPlayer.tsx
git commit -m "feat: rewrite NativeVideoPlayer with unified custom controls overlay"
```
---
## Task 2: 更新 VideoPlayer.tsx
**Files:**
- Modify: `components/VideoPlayer.tsx`
- [ ] **Step 1: 添加 bvid/cid props移除 onProgress/seekTo向下透传**
将 VideoPlayer.tsx 完整替换为:
```tsx
import React, { useState } from 'react';
import { View, StyleSheet, Dimensions, Text, Platform, Modal, TouchableOpacity, StatusBar } from 'react-native';
import { NativeVideoPlayer } from './NativeVideoPlayer';
import type { PlayUrlResponse } from '../services/types';
const { width } = Dimensions.get('window');
const VIDEO_HEIGHT = width * 0.5625;
interface Props {
playData: PlayUrlResponse | null;
qualities: { qn: number; desc: string }[];
currentQn: number;
onQualityChange: (qn: number) => void;
onMiniPlayer?: () => void;
bvid?: string;
cid?: number;
}
export function VideoPlayer({ playData, qualities, currentQn, onQualityChange, onMiniPlayer, bvid, cid }: Props) {
const [fullscreen, setFullscreen] = useState(false);
if (!playData) {
return (
<View style={[styles.container, styles.placeholder]}>
<Text style={styles.placeholderText}>...</Text>
</View>
);
}
if (Platform.OS === 'web') {
const url = playData.durl?.[0]?.url ?? '';
return (
<View style={styles.container}>
<video
src={url}
style={{ width: '100%', height: '100%', backgroundColor: '#000' } as any}
controls
playsInline
/>
</View>
);
}
return (
<>
<NativeVideoPlayer
playData={playData}
qualities={qualities}
currentQn={currentQn}
onQualityChange={onQualityChange}
onFullscreen={() => setFullscreen(true)}
onMiniPlayer={onMiniPlayer}
bvid={bvid}
cid={cid}
/>
<Modal visible={fullscreen} animationType="fade" statusBarTranslucent>
<StatusBar hidden />
<View style={styles.fullscreenContainer}>
<NativeVideoPlayer
playData={playData}
qualities={qualities}
currentQn={currentQn}
onQualityChange={onQualityChange}
onFullscreen={() => setFullscreen(false)}
bvid={bvid}
cid={cid}
style={{ width: '100%', height: '100%' } as any}
/>
</View>
</Modal>
</>
);
}
const styles = StyleSheet.create({
container: { width, height: VIDEO_HEIGHT, backgroundColor: '#000' },
placeholder: { justifyContent: 'center', alignItems: 'center' },
placeholderText: { color: '#fff', fontSize: 14 },
fullscreenContainer: { flex: 1, backgroundColor: '#000' },
});
```
- [ ] **Step 2: 验证 TypeScript 无报错**
```bash
cd C:/claude-code-studly/reactBilibiliApp && npx tsc --noEmit 2>&1 | grep -E "VideoPlayer|NativeVideoPlayer"
```
Expected: no new errors
- [ ] **Step 3: Commit**
```bash
git add components/VideoPlayer.tsx
git commit -m "refactor: VideoPlayer adds bvid/cid props, removes onProgress/seekTo"
```
---
## Task 3: 清理 [bvid].tsx
**Files:**
- Modify: `app/video/[bvid].tsx`
- [ ] **Step 1: 删除 HeatProgressBar 相关内容**
1. 删除 import 行:`import { HeatProgressBar } from '../../components/HeatProgressBar';`
2. 删除 3 个 state`currentTime`, `duration`, `seekCmd`
3. 删除 `onProgress``seekTo` props从 VideoPlayer 调用处)
4. 新增 `bvid={bvid as string}``cid={video?.cid}` 到 VideoPlayer
5. 删除整个 `<HeatProgressBar .../>` JSX 块
VideoPlayer 调用改为:
```tsx
<VideoPlayer
playData={playData}
qualities={qualities}
currentQn={currentQn}
onQualityChange={changeQuality}
onMiniPlayer={handleMiniPlayer}
bvid={bvid as string}
cid={video?.cid}
/>
```
- [ ] **Step 2: 验证 TypeScript 无报错**
```bash
cd C:/claude-code-studly/reactBilibiliApp && npx tsc --noEmit 2>&1 | grep bvid
```
Expected: no errors referencing bvid.tsx
- [ ] **Step 3: Commit**
```bash
git add app/video/[bvid].tsx
git commit -m "refactor: remove HeatProgressBar from video detail page, pass bvid/cid to VideoPlayer"
```
---
## Task 4: 删除 HeatProgressBar.tsx
**Files:**
- Delete: `components/HeatProgressBar.tsx`
- [ ] **Step 1: 删除文件**
```bash
cd C:/claude-code-studly/reactBilibiliApp && rm components/HeatProgressBar.tsx
```
- [ ] **Step 2: 确认无残留引用**
```bash
cd C:/claude-code-studly/reactBilibiliApp && grep -r "HeatProgressBar" --include="*.tsx" --include="*.ts" .
```
Expected: no output
- [ ] **Step 3: 全量 TypeScript 检查**
```bash
cd C:/claude-code-studly/reactBilibiliApp && npx tsc --noEmit 2>&1 | grep -v "video.stat"
```
Expected: 只有既有的 `video.stat` 错误,无新增错误
- [ ] **Step 4: Commit**
```bash
git add -A
git commit -m "feat: unified player controls with heatmap progress bar and thumbnail preview"
```
---
## 完成标志
- [ ] 打开视频详情页,播放器内有控制层(顶部 pip 按钮 + 中心播放/暂停 + 底部进度条 + 清晰度 + 全屏)
- [ ] 3 秒后控制层自动隐藏,点击视频区域重新显示
- [ ] 拖拽进度条时显示缩略图预览(需要视频有截图数据)
- [ ] 切换清晰度正常工作
- [ ] 播放器下方无独立的 HeatProgressBar