1.引入系统框架
2.创建视频的url
3.创建播放项目
4.初始化播放器
5.设置播放页面
//引入系统文件
#import <AVFoundation/AVFoundation.h>
#import <AVKit/AVKit.h>
@interface ViewController ()
/**
* 控制视频播放的控件
*/
@property (weak, nonatomic) IBOutlet UISlider *progressSlider;
/**
* 声明播放视频的控件属性[既可以播放视频也可以播放音频]
*/
@property (nonatomic,strong)AVPlayer *player;
/**
* 播放的总时长
*/
@property (nonatomic,assign)CGFloat sumPlayOperation; @end @implementation ViewController - (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
//设置播放的url
NSString *playString = @"http://static.tripbe.com/videofiles/20121214/9533522808.f4v.mp4";
NSURL *url = [NSURL URLWithString:playString];
//设置播放的项目
AVPlayerItem *item = [[AVPlayerItem alloc] initWithURL:url];
//初始化player对象
self.player = [[AVPlayer alloc] initWithPlayerItem:item];
//设置播放页面
AVPlayerLayer *layer = [AVPlayerLayer playerLayerWithPlayer:_player];
//设置播放页面的大小
layer.frame = CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, 300);
layer.backgroundColor = [UIColor cyanColor].CGColor;
//设置播放窗口和当前视图之间的比例显示内容
layer.videoGravity = AVLayerVideoGravityResizeAspect;
//添加播放视图到self.view
[self.view.layer addSublayer:layer];
//设置播放进度的默认值
self.progressSlider.value = 0;
//设置播放的默认音量值
self.player.volume = 1.0f; }
#pragma mark - 开始按钮响应方法
- (IBAction)startPlayer:(id)sender {
[self.player play];
}
#pragma mark - 暂停按钮响应方法
- (IBAction)stopPlayer:(id)sender {
[self.player pause];
}
#pragma mark - 改变进度
- (IBAction)changeProgress:(id)sender {
self.sumPlayOperation = self.player.currentItem.duration.value/self.player.currentItem.duration.timescale;
//CMTimeMake(a,b) a表示当前时间，b表示每秒钟有多少帧
[self.player seekToTime:CMTimeMakeWithSeconds(self.progressSlider.value*self.sumPlayOperation, self.player.currentItem.duration.timescale) completionHandler:^(BOOL finished) {
[self.player play];
}]; }