話不多說 先上圖
基本思路
- 1.把 AVPlayerLayer加載到 UIView 上 UIView 加載到 ScrollView上,講player加載到一個可變數組裏
- 2.滑動 ScrollView的時候切換 view 的頁面 切換 view 的頁面,先把上一個頁面的播放器暫停並且把它重置到初始狀態 將當前也頁面的播放器從數組裏面取出加載播放
1.準備步驟
- (1)幾個本地視頻資源 這裏示例講到的是.mov 格式的
- (2)playVideoArray = [[NSMutableArray alloc]init];
2.代碼過程
//準備代碼 用 for 循環給 scrolleview 和數組添加內容
//示例只有兩個資源就使用的2個了
for (count = 0 ; count < 2; count++) {
NSString *urlStr = [MSPath fullPathFromAssetsInMainBundle:[NSString stringWithFormat:***這裏寫上你的資源路徑***@"guideMov/guideMov%d.mov",count+1]];
NSURL *videoURL = [NSURL fileURLWithPath:urlStr];
AVAsset *movieAsset = [AVURLAsset URLAssetWithURL:videoURL options:nil];
//使用playerItem獲取視頻的信息,當前播放時間,總時間等
AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL:movieURL];
AVPlayerItem * playerItem = [AVPlayerItem playerItemWithAsset:movieAsset];
//創建AVPlayer 播放器
AVPlayer * player = [AVPlayer playerWithPlayerItem:playerItem];
//創建一個AVPlayerLayer 用於加在 UIView 上
AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:player];
playerLayer.frame = self.view.bounds;
playerLayer.videoGravity = AVLayerVideoGravityResizeAspect;
UIView *playView = [[UIView alloc]initWithFrame:(CGRect){pw * count,0,pw,ph}];
//將playerLayer加入 UIView 的 layer 層
[playView.layer addSublayer:playerLayer];
[mScrollView addSubview:playView];
//把player 加載到 playVideoArray 數組裏
[playVideoArray addObject:player];
if (count == 0) {
currentMovieIndex = count;
[player play];
}
}
以上的代碼是準備工作
下面是 scollerview 的代理方法
pragma mark UIScrollView delegate
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
//更新UIPageControl的當前頁
CGPoint offset = scrollView.contentOffset;
CGRect bounds = scrollView.frame;
NSInteger pageChange = offset.x/bounds.size.width;
if (pageChange == currentMovieIndex) {
return;
}
if (self.guideArrow) {
[self.guideArrow removeFromSuperview];
}
//拿出上一個的播放器
AVPlayer *prePlayer = [playVideoArray objectAtIndex:currentMovieIndex];
//把它暫停
[prePlayer pause];
//把它重置
[prePlayer replaceCurrentItemWithPlayerItem://(這個是取出播放器)[self getPlayerItem]];
currentMovieIndex = pageChange;
//拿出當前的播放器
AVPlayer *curPlayer = [playVideoArray objectAtIndex:currentMovieIndex];
//進行播放
[curPlayer play];
[mPageControl setCurrentPage:pageChange];
}
- (AVPlayerItem *)getPlayerItem{
NSString *urlStr = [MSPath fullPathFromAssetsInMainBundle:[NSString stringWithFormat:@"guideMov/guideMov%ld.mov",currentMovieIndex+1]];
NSURL *videoURL = [NSURL fileURLWithPath:urlStr];
AVAsset *movieAsset = [AVURLAsset URLAssetWithURL:videoURL options:nil];
AVPlayerItem * playerItem = [AVPlayerItem playerItemWithAsset:movieAsset];
return playerItem;
}