播放网络视频或者本地视频

1.头文件：

//
//  CustomMoviePlayerViewController.h
//  school
//
//  Created by NW on 15/2/4.
//  Copyright (c) 2015年 Ternturing. All rights reserved.
//

#import <UIKit/UIKit.h>
#import <MediaPlayer/MediaPlayer.h>      //导入视频播放库

@interface CustomMoviePlayerViewController : UIViewController

@property (nonatomic,strong) MPMoviePlayerController *mp;
@property (nonatomic,strong) NSURL *movieURL;                        //视频地址
@property (nonatomic,strong) UIActivityIndicatorView *loadingAni;    //加载动画
@property (nonatomic,strong) UILabel *label;//加载提醒

@property BOOL isHiddenStatusBar;


//准备播放
- (void)readyPlayer;

@end

2，实现文件：

//
//  NSObject+CustomMoviePlayerViewController.m
//  school
//
//  Created by NW on 15/2/4.
//  Copyright (c) 2015年 Ternturing. All rights reserved.
//

#import "CustomMoviePlayerViewController.h"
#import "MKConstant.h"

@implementation CustomMoviePlayerViewController

@synthesize movieURL;

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    self.loadingAni = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(140, 150, 37, 37)];
    self.loadingAni.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;
    [self.view addSubview:self.loadingAni];
    [self.loadingAni setTranslatesAutoresizingMaskIntoConstraints:NO];
    
    
    NSLayoutConstraint *pConstraint = [NSLayoutConstraint constraintWithItem:self.loadingAni
                                                                   attribute:NSLayoutAttributeCenterX
                                                                   relatedBy:NSLayoutRelationEqual
                                                                      toItem:self.view
                                                                   attribute:NSLayoutAttributeCenterX
                                                                  multiplier:1.0
                                                                    constant:0];
    [self.view addConstraint:pConstraint];
    
    pConstraint = [NSLayoutConstraint constraintWithItem:self.loadingAni
                                               attribute:NSLayoutAttributeCenterY
                                               relatedBy:NSLayoutRelationEqual
                                                  toItem:self.view
                                               attribute:NSLayoutAttributeCenterY
                                              multiplier:1.0
                                                constant:0];
    [self.view addConstraint:pConstraint];
    
    pConstraint = [NSLayoutConstraint constraintWithItem:self.loadingAni
                                               attribute:NSLayoutAttributeWidth
                                               relatedBy:NSLayoutRelationEqual
                                                  toItem:self.view
                                               attribute:NSLayoutAttributeWidth
                                              multiplier:0.0
                                                constant:37];
    [self.view addConstraint:pConstraint];
    
    pConstraint = [NSLayoutConstraint constraintWithItem:self.loadingAni
                                               attribute:NSLayoutAttributeHeight
                                               relatedBy:NSLayoutRelationEqual
                                                  toItem:self.view
                                               attribute:NSLayoutAttributeHeight
                                              multiplier:0.0
                                                constant:37];
    [self.view addConstraint:pConstraint];

    
    
    self.label = [[UILabel alloc] initWithFrame:CGRectMake(130, 190, 80, 40)];
    self.label.text = @"加载中...";
    self.label.textColor = [UIColor whiteColor];
    self.label.backgroundColor = [UIColor clearColor];
    
    [[self view] setBackgroundColor:[UIColor blackColor]];
    
    [self.loadingAni startAnimating];
    [self.view addSubview:self.label];
    
    [self.label setTranslatesAutoresizingMaskIntoConstraints:NO];
    
    pConstraint = [NSLayoutConstraint constraintWithItem:self.label
                                               attribute:NSLayoutAttributeTop
                                               relatedBy:NSLayoutRelationEqual
                                                  toItem:self.loadingAni
                                               attribute:NSLayoutAttributeBottom
                                              multiplier:1.0
                                                constant:30.0/3];
    [self.view addConstraint:pConstraint];
    pConstraint = [NSLayoutConstraint constraintWithItem:self.label
                                               attribute:NSLayoutAttributeCenterX
                                               relatedBy:NSLayoutRelationEqual
                                                  toItem:self.view
                                               attribute:NSLayoutAttributeCenterX
                                              multiplier:1.0
                                                constant:0];
    [self.view addConstraint:pConstraint];

    
}

- (BOOL)prefersStatusBarHidden{// >=ios7
    return self.isHiddenStatusBar;
}

- (void)showStatusBar{// >=ios7
    self.isHiddenStatusBar = NO;
    if ([self respondsToSelector:@selector(setNeedsStatusBarAppearanceUpdate)]) {
        [self prefersStatusBarHidden];
        [self setNeedsStatusBarAppearanceUpdate];
    }
}

- (void)hideStatusBar{// >=ios7
    self.isHiddenStatusBar = YES;
    if ([self respondsToSelector:@selector(setNeedsStatusBarAppearanceUpdate)]) {
        [self prefersStatusBarHidden];
        [self setNeedsStatusBarAppearanceUpdate];
    }
}


- (void) moviePlayerLoadStateChanged:(NSNotification*)notification
{
    [self.loadingAni stopAnimating];
    [self.label removeFromSuperview];
    
    
    
    // Unless state is unknown, start playback
    if ([self.mp loadState] != MPMovieLoadStateUnknown)
    {
        // Remove observer
        [[NSNotificationCenter     defaultCenter] removeObserver:self
                                                            name:MPMoviePlayerLoadStateDidChangeNotification
                                                          object:nil];
        
        // When tapping movie, status bar will appear, it shows up
        // in portrait mode by default. Set orientation to landscape
        //设置横屏
        [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight animated:YES];
        // Rotate the view for landscape playback
        [[self view] setBounds:CGRectMake(0, 0, DESIGN_SCREEN_HEIGHT, DESIGN_SCREEN_WIDTH)];
        [[self view] setCenter:CGPointMake(DESIGN_SCREEN_WIDTH/2, DESIGN_SCREEN_HEIGHT/2)];
        //选中当前view
        [[self view] setTransform:CGAffineTransformMakeRotation(M_PI / 2)];
        
        // Set frame of movieplayer
        [[self.mp view] setFrame:CGRectMake(0, 0, DESIGN_SCREEN_HEIGHT, DESIGN_SCREEN_WIDTH)];
        
//        self.mp..mov = MPMovieControlModeDefault;
        
        // Add movie player as subview
        [[self view] addSubview:[self.mp view]];
        
        // Play the movie
        [self.mp play];
        
        [[UIApplication sharedApplication] setStatusBarHidden:YES];
        
        self.navigationController.navigationBar.hidden = YES;
        [self hideStatusBar];
    }
}


- (void) moviePlayBackDidFinish:(NSNotification*)notification
{
    [self showStatusBar];
//    [[UIApplication sharedApplication] setStatusBarOrientation:<#(UIInterfaceOrientation)#>];
    //还原状态栏为默认状态
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault animated:NO];
    // Remove observer
    [[NSNotificationCenter defaultCenter] removeObserver:self
                                                        name:MPMoviePlayerPlaybackDidFinishNotification
                                                      object:nil];
    
//    [self dismissModalViewControllerAnimated:NO];
    self.navigationController.navigationBar.hidden = NO;
    [self.navigationController popViewControllerAnimated:YES];
}


- (void) readyPlayer
{
    self.mp =  [[MPMoviePlayerController alloc] initWithContentURL:movieURL];
    
    if ([self.mp respondsToSelector:@selector(loadState)])
    {
        // Set movie player layout
        [self.mp setControlStyle:MPMovieControlStyleFullscreen];        //MPMovieControlStyleFullscreen        //MPMovieControlStyleEmbedded
        //满屏
        [self.mp setFullscreen:YES];
        // 有助于减少延迟
        [self.mp prepareToPlay];
        
        // Register that the load state changed (movie is ready)
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(moviePlayerLoadStateChanged:)
                                                     name:MPMoviePlayerLoadStateDidChangeNotification
                                                   object:nil];
    }
    else
    {
        // Play the movie For 3.1.x devices
        [self.mp play];
    }
    
    // Register to receive a notification when the movie has finished playing.
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(moviePlayBackDidFinish:)
                                                 name:MPMoviePlayerPlaybackDidFinishNotification
                                               object:nil];
}

@end

3.调用

- (IBAction)clickButtonPlay:(id)sender
{
    
//    MPMoviePlayerController *moviePlayer = [ [ MPMoviePlayerController alloc]initWithContentURL:[NSURL URLWithString:@"http://m.v.qq.com/live.html?stream_id=3956944389&lolboxAction=toExternalWebView"] ];
//    [moviePlayer play];
//    [self.navigationController pushViewController:moviePlayer animated:YES];
    NSString* warefile = [self.dicData objectForKey:@"warefile"];
    
    [MKServerHelper getWarefileWithFileName:warefile Completion:^(NSURL *url) {
        [self performSelectorOnMainThread:@selector(playMovieWithUrl:) withObject:url waitUntilDone:NO];
    }];
}

- (void)playMovieWithUrl:(NSURL *)url//重定向返回的视频真实地址
{
    CustomMoviePlayerViewController *moviePlayer = [[CustomMoviePlayerViewController alloc] init];
    //将视频地址传过去
    moviePlayer.movieURL = url;
    //然后播放就OK了
    [moviePlayer readyPlayer];
    [self.navigationController pushViewController:moviePlayer animated:NO];
}