一款超级好用的基于AVPlayer的视频播放器 ##DWQVideoPlayer DWQVideoPlayer是基于AVPlayer进行的一定以封装，包含了以下功能：
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1.自定义播放界面。提供播放，暂停，全屏等功能。提供播放进度条，加载进度条等。
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2.向上或向下滑动屏幕的左侧以调整亮度。向上或向下滑动屏幕右侧可调整声音。
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3.向左或向右滑动屏幕可调整播放进度。
##DWQVideoPlayer使用方法：
/**
创建一个播放器
@param videoURL video的URL
@param playerView 要显示视频的视图。
@param playerSuperView 播放器的父视图
@return
*/
+ (instancetype)playerWithVideoURL:(NSURL *)videoURL playerView:(UIView *)playerView playerSuperView:(UIView *)playerSuperView;
UIView *playerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, screen_Width , 260)];
// playerView.center = self.view.center;
[self.view addSubview:playerView];
_videoPlayer = [DWQVideoPlayer playerWithVideoURL:url playerView:playerView playerSuperView:playerView.superview];
_videoPlayer.videoName = @"iOS高级工程师杜文全";
_videoPlayer.playerEndAction = DWQVideoPlayerEndActionStop;
[_videoPlayer play];
####调用 1.本地视频:注意，要把视频添加到Bundle Resources中
self.videoURL = [[NSBundle mainBundle] URLForResource:@"iPhone7" withExtension:@"mp4"];
[self showVideoPlayer:self.videoURL];
2.网络视频:
self.videoURL = [NSURL URLWithString:@"https://hximgtest.acool.pro/uploads/video/jinghuahezi.mp4"];
[self showVideoPlayer:self.videoURL];