在歌词模型准备好之后，我们要展示歌词，这里我选择的是tableview，通过每一个cell来加载不同的歌词，然后通过歌词的时间信息来更新和滚动
#pragma mark == UITableViewDataSource
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [GLMusicPlayer defaultPlayer].musicLRCArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
MusicLRCTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"musicLrc" forIndexPath:indexPath];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.backgroundColor = [UIColor clearColor];
cell.contentView.backgroundColor = [UIColor clearColor];
cell.lrcModel = [GLMusicPlayer defaultPlayer].musicLRCArray[indexPath.row];
if (indexPath.row == self.currentLcrIndex) {
[cell reloadCellForSelect:YES];
}else{
[cell reloadCellForSelect:NO];
}
return cell;
}
这里面唯一比较麻烦的可能就是更新歌词了，在上面的定时器中，我们也通过代理来更新了进度条，所以我也将更新歌词的部分放在了代理中，这样可以达到实时更新的目的，下面看看方法
//逐行更新歌词
- (void)updateMusicLrcForRowWithCurrentTime:(NSTimeInterval)currentTime
{
for (int i = 0; i < [GLMusicPlayer defaultPlayer].musicLRCArray.count; i ++) {
GLMusicLRCModel *model = [GLMusicPlayer defaultPlayer].musicLRCArray[i];
NSInteger next = i + 1;
GLMusicLRCModel *nextLrcModel = nil;
if (next < [GLMusicPlayer defaultPlayer].musicLRCArray.count) {
nextLrcModel = [GLMusicPlayer defaultPlayer].musicLRCArray[next];
}
if (self.currentLcrIndex != i && currentTime >= model.time)
{
BOOL show = NO;
if (nextLrcModel) {
if (currentTime < nextLrcModel.time) {
show = YES;
}
}else{
show = YES;
}
if (show) {
NSIndexPath *currentIndexPath = [NSIndexPath indexPathForRow:i inSection:0];
NSIndexPath *previousIndexPath = [NSIndexPath indexPathForRow:self.currentLcrIndex inSection:0];
self.currentLcrIndex = i;
MusicLRCTableViewCell *currentCell = [self.lrcTableView cellForRowAtIndexPath:currentIndexPath];
MusicLRCTableViewCell *previousCell = [self.lrcTableView cellForRowAtIndexPath:previousIndexPath];
//设置当前行的状态
[currentCell reloadCellForSelect:YES];
//取消上一行的选中状态
[previousCell reloadCellForSelect:NO];
if (!self.isDrag) {
[self.lrcTableView scrollToRowAtIndexPath:currentIndexPath atScrollPosition:UITableViewScrollPositionMiddle animated:YES];
}
}
}
if (self.currentLcrIndex == i) {
MusicLRCTableViewCell *cell = [self.lrcTableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:i inSection:0]];
CGFloat totalTime = 0;
if (nextLrcModel) {
totalTime = nextLrcModel.time - model.time;
}else{
totalTime = [GLMusicPlayer defaultPlayer].duration.minute * 60 + [GLMusicPlayer defaultPlayer].duration.second - model.time;
}
CGFloat progressTime = currentTime - model.time;
cell.lrcLable.progress = progressTime / totalTime;
}
}
}
