/**
* 根据传递过来的已播放的毫秒数，计算应当对应到句子集合中的哪一句，再通知监听者播放到的位置。
*
* @param millisecond 已播放的毫秒数
*/
public void notifyTime(long millisecond) {
// Log.i(TAG, "notifyTime");
if (mHasLyric && mLyricSentences != null && mLyricSentences.size() != 0) {
int newLyricIndex = seekSentenceIndex(millisecond);
if (newLyricIndex != -1 && newLyricIndex != mIndexOfCurrentSentence) { // 如果找到的歌词和现在的不是一句。
if (mLyricListener != null) {
// 告诉一声，歌词已经变成另外一句啦！
mLyricListener.onLyricSentenceChanged(newLyricIndex);
}
mIndexOfCurrentSentence = newLyricIndex;
}
}
}
/**
* 根据歌词文件的路径，读取出歌词文本并解析
*
* @param lyricPath 歌词文件路径
* @return true表示存在歌词，false表示不存在歌词
*/
public boolean loadLyric(String lyricPath) {
C.logshow("LoadLyric begin,path is:" + lyricPath);
mHasLyric = false;
mLyricSentences.clear();
if (lyricPath != null) {
File file = new File(lyricPath);
if (file.exists()) {
C.logshow("歌词文件存在");
mHasLyric = true;
try {
FileInputStream fr = new FileInputStream(file);
InputStreamReader isr = new InputStreamReader(fr, mEncoding);
BufferedReader br = new BufferedReader(isr);
String line = null;
// 逐行分析歌词文本
while ((line = br.readLine()) != null) {
C.logshow("lyric line:" + line);
parseLine(line);
}
// 按时间排序句子集合
Collections.sort(
mLyricSentences,
new Comparator<LyricSentence>() {
// 内嵌，匿名的compare类
public int compare(LyricSentence object1, LyricSentence object2) {
if (object1.getStartTime() > object2.getStartTime()) {
return 1;
} else if (object1.getStartTime() < object2.getStartTime()) {
return -1;
} else {
return 0;
}
}
});
for (int i = 0; i < mLyricSentences.size() - 1; i++) {
mLyricSentences.get(i).setDuringTime(mLyricSentences.get(i + 1).getStartTime());
}
mLyricSentences.get(mLyricSentences.size() - 1).setDuringTime(Integer.MAX_VALUE);
fr.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
}
} else {
C.logshow("歌词文件不存在");
}
}
// 如果有谁在监听，通知它歌词载入完啦，并把载入的句子集合也传递过去
if (mLyricListener != null) {
mLyricListener.onLyricLoaded(mLyricSentences, mIndexOfCurrentSentence);
}
if (mHasLyric) {
// Log.i(TAG, "Lyric file existed.Lyric has " +
// mLyricSentences.size()
// + " Sentences");
} else {
// Log.i(TAG, "Lyric file does not existed");
}
return mHasLyric;
}
