iOS elearning------9 Play Network Video

iOS offers two classes called MPMoviePlayerController Mpmovieplayerviewcontroller that can be easily used for video playback. Mpmovieplayerviewcontroller can only play video in full screen.

#import "MainViewController.h" #import <MediaPlayer/MediaPlayer.h> @interface Mainviewcontroller ()// Video player @property (strong, nonatomic) MPMoviePlayerController *player; @property (Strong, nonatomic) Uiimageview *    ImageView; @end @implementation mainviewcontroller-(void) viewdidload{[Super Viewdidload];        Instantiate video player Nsurl *url = [[NSBundle mainbundle]urlforresource:@ "Promo_full" withextension:@ "mp4"]; Video playback is a streaming media playback mode, so-called streaming media is the video data like water, load, change play. Tip: If the URL contains Chinese, you need to add a percent semicolon. NSString *urlstring = @ "Http:www.xxx.com/video/xxx.mp4";//Nsurl *url = [Nsurl urlwithstring:[urlstring StringByA        Ddingpercentescapesusingencoding:nsutf8stringencoding]];    Self.player = [[MPMoviePlayerController Alloc]initwithcontenturl:url]; 1 set the size of the player [Self.player.view setframe:cgrectmake (0, 0, 320, 180)];        16:9 is the style of the mainstream media//2 add the player view to the root view [Self.view AddSubview:self.player.view];    4 Play [Self.player play];    [Self.player stop]; Monitor video playback status//1 monitor playback via notification hubs in viewer modeState [[Nsnotificationcenter defaultcenter]addobserver:self selector: @selector (statechange) Name:    Mpmovieplayerplaybackstatedidchangenotification Object:nil]; 2 listening playback complete [[Nsnotificationcenter defaultcenter]addobserver:self selector: @selector (finishedplay) Name:    Mpmovieplayerplaybackdidfinishnotification Object:nil]; 3 video [[Nsnotificationcenter defaultcenter]addobserver:self selector: @selector (caputerimage:) Name:    Mpmovieplayerthumbnailimagerequestdidfinishnotification Object:nil]; 3 video [[Nsnotificationcenter defaultcenter]addobserver:self selector: @selector (caputerimage:) Name:        Mpmovieplayerthumbnailimagerequestdidfinishnotification Object:nil]; 4 Exit full-screen notification [[Nsnotificationcenter defaultcenter]addobserver:self selector: @selector (exitfullscreen) Name:        Mpmovieplayerdidexitfullscreennotification Object:nil];    Asynchronous video, you can specify one or more times in attimes.        [Self.player requestthumbnailimagesattimes:@[@10.0f, @20.0f] timeoption:mpmovietimeoptionnearestkeyframe]; UIImageView *thumbnailimageview = [[Uiimageview alloc]initwithframe:cgrectmake (80, 200, 160, 90)];    Self.imageview = Thumbnailimageview; [Self.view Addsubview:thumbnailimageview];} #pragma mark exits full screen-(void) exitfullscreen{NSLog (@ "exit full screen");} #pragma mark-player event listener #pragma mark Video This method is asynchronous method-(void) Caputerimage: (nsnotification *) notification{NSLog (@ "%@", Notifi    cation);    UIImage *image = notification.userinfo[@ "Mpmovieplayerthumbnailimagekey"]; [Self.imageview setimage:image];} #pragma mark player event listener #pragma mark play complete-(void) finishedplay{NSLog (@ "play complete");} #pragma mark player video monitor #pragma mark playback status Change/* mpmovieplaybackstatestopped,//Stop mpmovieplaybackstateplaying,//Play Mpmoviep laybackstatepaused,//Pause mpmovieplaybackstateinterrupted,//Interrupt Mpmovieplaybackstateseekingforward,//Fast Forward Mpmovieplaybackstateseekingbackward//Rewind */-(void) statechange{switch (self.player.playbackState) {case Mpmov            Ieplaybackstatepaused:nslog (@ "pause");        Break Case MpmovieplayBackstateplaying://Set full screen playback [Self.player Setfullscreen:yes animated:yes];            NSLog (@ "Play");        Break            Case mpmovieplaybackstatestopped://Note: The Mpmovieplaybackstatestopped event is not triggered when normal playback is complete.            Call [Self.player stop]; method can trigger this event.            NSLog (@ "Stop");        Break    Default:break; }} @end