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
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
//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
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];
}];
} |