{
// 播放器
AVPlayer *player;
// 承载视图
UIView *contentView;
// 控件承载视图
UIView *controlView;
// 进度条
UISlider *progressSlider;
}
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
contentView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.width*9/16.f)];
contentView.backgroundColor = [UIColor blackColor];
UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panAction:)];
[contentView addGestureRecognizer:pan];
[self.view addSubview:contentView];
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"abc" ofType:@"mp4"]];
// 通过URL创建
player = [[AVPlayer alloc] initWithURL:url];
// AVPlayer 需要生成一个Layer 图层，添加到view的layer
AVPlayerLayer *layer =[AVPlayerLayer playerLayerWithPlayer:player];
layer.frame = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.width*9/16.f);
[contentView.layer addSublayer:layer];
[player play];
// 控制视图
controlView = [[UIView alloc] initWithFrame:CGRectMake(0,contentView.frame.size.height-50 , kScreenWidth, 50)];
[controlView setBackgroundColor:[UIColor clearColor]];
[contentView addSubview:controlView];
// 添加半透明遮罩
UIView *maskView = [[UIView alloc] initWithFrame:controlView.bounds];
maskView.backgroundColor = [UIColor blackColor];
maskView.alpha = .8;
[controlView addSubview:maskView];
// 按钮
UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
[btn setFrame:CGRectMake(0,0, 50, 50)];
[btn setTitle:@"▶️" forState:UIControlStateNormal];
[btn addTarget:self action:@selector(playOrPause:) forControlEvents:UIControlEventTouchUpInside];
[controlView addSubview:btn];
//进度条
progressSlider = [[UISlider alloc] initWithFrame:CGRectMake(70, 0, kScreenWidth-140, 50)];
progressSlider.value = 0;
[progressSlider addTarget:self action:@selector(sliderAct:) forControlEvents:UIControlEventValueChanged];
[progressSlider addTarget:self action:@selector(pause) forControlEvents:UIControlEventTouchDown];
[progressSlider addTarget:self action:@selector(play) forControlEvents:UIControlEventTouchUpInside];
[controlView addSubview:progressSlider];
// 进度条跟着视频播放时间 自动滑动
__weak id weakSelf = self;
[player addPeriodicTimeObserverForInterval:CMTimeMakeWithSeconds(0.2f, 24) queue:dispatch_get_main_queue() usingBlock:^(CMTime time) {
ViewController *strongSelf = weakSelf;
//视频第一次回调 设置slider的长度
if (time.value/time.timescale == 0) {
CMTime duration = strongSelf->player.currentItem.duration;
long second = duration.value/duration.timescale;
strongSelf->progressSlider.maximumValue = second;
}
//更新slider的value
long second = time.value/time.timescale;
strongSelf->progressSlider.value = second;
}];
}
#pragma mark -
#pragma mark - UIActions
//手势触发 方法
-(void)panAction:(UIPanGestureRecognizer*)ges{
CGPoint location = [ges locationInView:contentView];
// 右边控制音量
if( location.x>kScreenWidth/2){
CGPoint translation = [ges translationInView:contentView];
float change = translation.y/contentView.frame.size.height;
if (translation.y) {
[self getSystemVolumeAdd:change];
}
}else{
// 左边控制亮度
CGPoint translation = [ges translationInView:contentView];
float change = translation.y/contentView.frame.size.height;
[UIScreen mainScreen].brightness-= change;
}
}
//AVPlayer播放或者暂停 可以调用play方法，也可以直接设置速度 rate
-(void)play{
player.rate = 1;
}
-(void)pause{
player.rate = 0;
}
-(void)sliderAct:(UISlider *)slider{
int second = slider.value;
// 跳转到某个时间点
[player seekToTime:CMTimeMakeWithSeconds(second, 24)];
}
-(void)playOrPause:(UIButton*)btn{
if (player.rate == 0) {
player.rate = 1.0f;
}else{
player.rate = 0.0f;
}
}
//获取声音大小
//创建MPVolumeView ，然后遍历子视图，获取到MPVolumeSlider，
//获得系统当前声音大小 使用 volume = [(UISlider*)v value];
//设置系统声音 用setValue: animated:
//0~1范围
-(void)getSystemVolumeAdd:(float) f{
MPVolumeView *volumeView = [[MPVolumeView alloc] init];
float volume = 0.0;
for (UIView *v in volumeView.subviews) {
if ([v isKindOfClass:NSClassFromString(@"MPVolumeSlider")]) {
volume = [(UISlider*)v value];
[(UISlider*)v setValue:volume-f animated:YES];
}
}
}