lrc歌词显示

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class LyricsParser {

    public static class LyricEntry {
        public final long timestamp; // 时间戳（毫秒）
        public final String text;    // 歌词文本

        public LyricEntry(long timestamp, String text) {
            this.timestamp = timestamp;
            this.text = text;
        }
    }

    public List<LyricEntry> parseLrcFile(File lrcFile) {
        List<LyricEntry> lyrics = new ArrayList<>();
        try (BufferedReader reader = new BufferedReader(new FileReader(lrcFile))) {
            String line;
            while ((line = reader.readLine()) != null) {
                LyricEntry entry = parseLine(line);
                if (entry != null) {
                    lyrics.add(entry);
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return lyrics;
    }

    private LyricEntry parseLine(String line) {
        if (line.startsWith("[") && line.contains("]")) {
            int endIndex = line.indexOf(']');
            String timeString = line.substring(1, endIndex);
            String text = line.substring(endIndex + 1).trim();

            long timestamp = parseTime(timeString);
            return new LyricEntry(timestamp, text);
        }
        return null;
    }

    private long parseTime(String timeString) {
        String[] parts = timeString.split(":");
        if (parts.length == 2) {
            int minutes = Integer.parseInt(parts[0]);
            String[] secondsParts = parts[1].split("\\.");
            int seconds = Integer.parseInt(secondsParts[0]);
            int milliseconds = secondsParts.length > 1 ? Integer.parseInt(secondsParts[1]) : 0;

            return (minutes * 60 + seconds) * 1000 + milliseconds * 10;
        }
        return 0;
    }
}

上面是读取歌词的文件。

读取歌词

File lrcFile = new File(playInfo.currentPlaying.dir+File.separator+playInfo.currentPlaying.title+".lrc");
        if (lrcFile.exists()) {
            LyricsParser parser = new LyricsParser();
            lyrics = parser.parseLrcFile(lrcFile);
        } else {
            lyrics = null;
        }

使用recyclerview显示歌词，根据播放的时间回调判断是哪句歌词在显示，把这句歌词居中

if (lyrics.getPos() >= 0) {
                        ((LinearLayoutManager) (binding.rvLrcList.getLayoutManager())).scrollToPositionWithOffset(Math.max(lyrics.getPos()- 1, 0), 0);
                    } else {
                        ((LinearLayoutManager) (binding.rvLrcList.getLayoutManager())).scrollToPositionWithOffset(0, 0);
                    }