在iOS中播放视频可以使用MediaPlayer.framework种的MPMoviePlayerController类来完成,它支持本地视频和网络视频播放。这个类实现了MPMediaPlayback协议,因此具备一般的播放器控制功能,例如播放、暂停、停止等。下面列出了MPMoviePlayerController的常用属性和方法:
属性 | 说明 |
@property (nonatomic, copy) NSURL *contentURL | 播放媒体URL,这个URL可以是本地路径,也可以是网络路径 |
@property (nonatomic, readonly) UIView *view | 播放器视图,如果要显示视频必须将此视图添加到控制器视图中 |
@property (nonatomic, readonly) UIView *backgroundView | 播放器背景视图 |
@property (nonatomic, readonly) MPMoviePlaybackState playbackState | 媒体播放状态,枚举类型: MPMoviePlaybackStateStopped:停止播放 MPMoviePlaybackStatePlaying:正在播放 MPMoviePlaybackStatePaused:暂停 MPMoviePlaybackStateInterrupted:中断 MPMoviePlaybackStateSeekingForward:向前定位 MPMoviePlaybackStateSeekingBackward:向后定位 |
@property (nonatomic, readonly) MPMovieLoadState loadState | 网络媒体加载状态,枚举类型: MPMovieLoadStateUnknown:位置类型 MPMovieLoadStatePlayable: MPMovieLoadStatePlaythroughOK:这种状态如果shouldAutoPlay为YES将自动播放 MPMovieLoadStateStalled:停滞状态 |
@property (nonatomic) MPMovieControlStyle controlStyle | 控制面板风格,枚举类型: MPMovieControlStyleNone:无控制面板 MPMovieControlStyleEmbedded:嵌入视频风格 MPMovieControlStyleFullscreen:全屏 MPMovieControlStyleDefault:默认风格 |
@property (nonatomic) MPMovieRepeatMode repeatMode; | 重复播放模式,枚举类型: MPMovieRepeatModeNone:不重复,默认值 MPMovieRepeatModeOne:重复播放 |
@property (nonatomic) BOOL shouldAutoplay | 当网络媒体缓存到一定数据时是否自动播放,默认为YES |
@property (nonatomic, getter=isFullscreen) BOOL fullscreen | 是否全屏展示,默认为NO,注意如果要通过此属性设置全屏必须在视图显示完成后设置,否则无效 |
@property (nonatomic) MPMovieScalingMode scalingMode | 视频缩放填充模式,枚举类型: MPMovieScalingModeNone:不进行任何缩放 MPMovieScalingModeAspectFit:固定缩放比例并且尽量全部展示视频,不会裁切视频 MPMovieScalingModeAspectFill:固定缩放比例并填充满整个视图展示,可能会裁切视频 MPMovieScalingModeFill:不固定缩放比例压缩填充整个视图,视频不会被裁切但是比例失衡 |
@property (nonatomic, readonly) BOOL readyForDisplay | 是否有相关媒体被播放 |
@property (nonatomic, readonly) MPMovieMediaTypeMask movieMediaTypes | 媒体类别,枚举类型: MPMovieMediaTypeMaskNone:未知类型 MPMovieMediaTypeMaskVideo:视频 MPMovieMediaTypeMaskAudio:音频 |
@property (nonatomic) MPMovieSourceType movieSourceType | 媒体源,枚举类型: MPMovieSourceTypeUnknown:未知来源 MPMovieSourceTypeFile:本地文件 MPMovieSourceTypeStreaming:流媒体(直播或点播) |
@property (nonatomic, readonly) NSTimeInterval duration | 媒体时长,如果未知则返回0 |
@property (nonatomic, readonly) NSTimeInterval playableDuration | 媒体可播放时长,主要用于表示网络媒体已下载视频时长 |
@property (nonatomic, readonly) CGSize naturalSize | 视频实际尺寸,如果未知则返回CGSizeZero |
@property (nonatomic) NSTimeInterval initialPlaybackTime | 起始播放时间 |
@property (nonatomic) NSTimeInterval endPlaybackTime | 终止播放时间 |
@property (nonatomic) BOOL allowsAirPlay | 是否允许无线播放,默认为YES |
@property (nonatomic, readonly, getter=isAirPlayVideoActive) BOOL airPlayVideoActive | 当前媒体是否正在通过AirPlay播放 |
@property(nonatomic, readonly) BOOL isPreparedToPlay | 是否准备好播放 |
@property(nonatomic) NSTimeInterval currentPlaybackTime | 当前播放时间,单位:秒 |
@property(nonatomic) float currentPlaybackRate | 当前播放速度,如果暂停则为0,正常速度为1.0,非0数据表示倍率 |
对象方法 | 说明 |
- (instancetype)initWithContentURL:(NSURL *)url | 使用指定的URL初始化媒体播放控制器对象 |
- (void)setFullscreen:(BOOL)fullscreen animated:(BOOL)animated | 设置视频全屏,注意如果要通过此方法设置全屏则必须在其视图显示之后设置,否则无效 |
- (void)requestThumbnailImagesAtTimes:(NSArray *)playbackTimes timeOption:(MPMovieTimeOption)option | 获取在指定播放时间的视频缩略图,第一个参数是获取缩略图的时间点数组;第二个参数代表时间点精度,枚举类型: MPMovieTimeOptionNearestKeyFrame:时间点附近 MPMovieTimeOptionExact:准确时间 |
- (void)cancelAllThumbnailImageRequests | 取消所有缩略图获取请求 |
- (void)prepareToPlay | 准备播放,加载视频数据到缓存,当调用play方法时如果没有准备好会自动调用此方法 |
- (void)play | 开始播放 |
- (void)pause | 暂停播放 |
- (void)stop | 停止播放 |
- (void)beginSeekingForward | 向前定位 |
- (void)beginSeekingBackward | 向后定位 |
- (void)endSeeking | 停止快进/快退 |
通知 | 说明 |
MPMoviePlayerScalingModeDidChangeNotification | 视频缩放填充模式发生改变 |
MPMoviePlayerPlaybackDidFinishNotification | 媒体播放完成或用户手动退出,具体完成原因可以通过通知userInfo中的key为MPMoviePlayerPlaybackDidFinishReasonUserInfoKey的对象获取 |
MPMoviePlayerPlaybackStateDidChangeNotification | 播放状态改变,可配合playbakcState属性获取具体状态 |
MPMoviePlayerLoadStateDidChangeNotification | 媒体网络加载状态改变 |
MPMoviePlayerNowPlayingMovieDidChangeNotification | 当前播放的媒体内容发生改变 |
MPMoviePlayerWillEnterFullscreenNotification | 将要进入全屏 |
MPMoviePlayerDidEnterFullscreenNotification | 进入全屏后 |
MPMoviePlayerWillExitFullscreenNotification | 将要退出全屏 |
MPMoviePlayerDidExitFullscreenNotification | 退出全屏后 |
MPMoviePlayerIsAirPlayVideoActiveDidChangeNotification | 当媒体开始通过AirPlay播放或者结束AirPlay播放 |
MPMoviePlayerReadyForDisplayDidChangeNotification | 视频显示状态改变 |
MPMovieMediaTypesAvailableNotification | 确定了媒体可用类型后 |
MPMovieSourceTypeAvailableNotification | 确定了媒体来源后 |
MPMovieDurationAvailableNotification | 确定了媒体播放时长后 |
MPMovieNaturalSizeAvailableNotification | 确定了媒体的实际尺寸后 |
MPMoviePlayerThumbnailImageRequestDidFinishNotification | 缩略图请求完成之后 |
MPMediaPlaybackIsPreparedToPlayDidChangeNotification | 做好播放准备后 |
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#
import
ViewController.h
#
import
<mediaplayer mediaplayer.h=
""
>
@interface
ViewController ()
@property
(nonatomic,strong) MPMoviePlayerController *moviePlayer;
@end
@implementation
ViewController
- (
void
)viewDidLoad {
[
super
viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[self.moviePlayer play];
[self addNofi];
}
- (
void
)didReceiveMemoryWarning {
[
super
didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/**
* 视频播放url
*
* @return 返回视频url
*/
- (NSURL *)url
{
NSString *urlStr =
@http
:
//7xawdc.com2.z0.glb.qiniucdn.com/o_19p6vdmi9148s16fs1ptehbm1vd59.mp4;
urlStr = [urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *url1 = [NSURL URLWithString:urlStr];
return
url1;
}
/**
* 初始化MPMoviePlayerController
*
* @return 返回一个MPMoviePlayerController的实例
*/
- (MPMoviePlayerController *)moviePlayer
{
if
(!_moviePlayer) {
_moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[self url]];
_moviePlayer.view.frame = self.view.frame;
_moviePlayer.scalingMode = MPMovieScalingModeAspectFit;
//固定缩放比例并且尽量全部
[self.view addSubview:_moviePlayer.view];
}
return
_moviePlayer;
}
/**
* 添加视频播放的通知
*/
- (
void
)addNofi
{
[[NSNotificationCenter defaultCenter] addObserver:self
selector:
@selector
(playbackstateDidChange:)
name:MPMoviePlayerPlaybackStateDidChangeNotification
//播放状态改变,可配合playbakcState属性获取具体状态
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:
@selector
(playDidFinish:)
//媒体播放完成或用户手动退出,具体完成原因可以通过通知userInfo中的key为MPMoviePlayerPlaybackDidFinishReasonUserInfoKey的对象获取
name:MPMoviePlayerPlaybackDidFinishNotification
object:nil];
}
- (
void
)playbackstateDidChange:(NSNotification *)noti
{
switch
(self.moviePlayer.playbackState) {
case
MPMoviePlaybackStateInterrupted:
//中断
NSLog(@中断);
break
;
case
MPMoviePlaybackStatePaused:
//暂停
NSLog(@暂停);
break
;
case
MPMoviePlaybackStatePlaying:
//播放中
NSLog(@播放中);
break
;
case
MPMoviePlaybackStateSeekingBackward:
//后退
NSLog(@后退);
break
;
case
MPMoviePlaybackStateSeekingForward:
//快进
NSLog(@快进);
break
;
case
MPMoviePlaybackStateStopped:
//停止
NSLog(@停止);
break
;
default
:
break
;
}
}
- (
void
)playDidFinish:(NSNotification *)noti
{
//播放完成
}
@end
|