ios20-播放视频

1.第一步穿件一个空视图

videoPlayer.h

#import <UIKit/UIKit.h>

@interface ios20_videoPlayerAppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;

@end

  ios20_videoPlayerAppDelegate.m

//  ios20-videoPlayer

//

//  Created by  on 13-6-10.

//  Copyright 2013年 __MyCompanyName__. All rights reserved.

//

#import "ios20_videoPlayerAppDelegate.h"

#import "VideoPlayer.h"

@implementation ios20_videoPlayerAppDelegate

@synthesize window = _window;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    // Override point for customization after application launch.

    VideoPlayer *video=[[VideoPlayer alloc]init];

    self.window.rootViewController=video;

    self.window.backgroundColor = [UIColor whiteColor];

    [self.window makeKeyAndVisible];

    return YES;

}

- (void)applicationWillResignActive:(UIApplication *)application

{

    /*

     Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.

     Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.

     */

}

- (void)applicationDidEnterBackground:(UIApplication *)application

{

    /*

     Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 

     If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.

     */

}

- (void)applicationWillEnterForeground:(UIApplication *)application

{

    /*

     Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.

     */

}

- (void)applicationDidBecomeActive:(UIApplication *)application

{

    /*

     Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.

     */

}

- (void)applicationWillTerminate:(UIApplication *)application

{

    /*

     Called when the application is about to terminate.

     Save data if appropriate.

     See also applicationDidEnterBackground:.

     */

}

@end

2.

#import <UIKit/UIKit.h>

#import <MediaPlayer/MediaPlayer.h>

@interface VideoPlayer : UIViewController

{

//定义播放类

    MPMediaPickerController *videoPlayer;

}

@property (nonatomic,retain) MPMediaPickerController *videoPlayer;

@end

//

//  VideoPlayer.m

//  ios20-videoPlayer

//

//  Created by  on 13-6-10.

//  Copyright 2013年 __MyCompanyName__. All rights reserved.

//

#import "VideoPlayer.h"

@implementation VideoPlayer

@synthesize videoPlayer;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil

{

    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

    if (self) {

        // Custom initialization

    }

    return self;

}

- (void)didReceiveMemoryWarning

{

    // Releases the view if it doesn't have a superview.

    [super didReceiveMemoryWarning];

    

    // Release any cached data, images, etc that aren't in use.

}

-(void)loadView{

    UIView *view=[[UIView alloc]initWithFrame:[UIScreen mainScreen].applicationFrame];

    view.backgroundColor=[UIColor purpleColor];

    self.view=view;

    UIButton *button=[UIButton buttonWithType:UIButtonTypeRoundedRect];

    button.frame=CGRectMake(90, 100, 100, 40);

    [button setTitle:@"播放视频" forState:UIControlStateNormal];

    [button addTarget:self action:@selector(startPlayer) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:button];

}

//开始播放

-(void)startPlayer{

    //获取文件路径

    NSString *filePath=[[NSBundle mainBundle]pathForResource:@"3" ofType:@"mp4"];

    

//加载url

    NSURL *videoUrl=[NSURL fileURLWithPath:filePath];

    //设定播放模式

    videoPlayer=[[MPMoviePlayerViewController alloc]initWithContentURL:videoUrl];

    

    //

    //videoPlayer.moviePlayer.controlStyle=MPMovieControlStyleFullscreen;

    [[[UIApplication sharedApplication] keyWindow] addSubview:videoPlayer.view];

}

#pragma mark - View lifecycle

/*

// Implement loadView to create a view hierarchy programmatically, without using a nib.

- (void)loadView

{

}

*/

- (void)viewDidLoad

{

    [super viewDidLoad];

    //初始化通知

    //为什么要通知？

    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(playerDone) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];

}

-(void)playerDone{

    NSLog(@"视频播放完成");

    [videoPlayer.view removeFromSuperview];

    videoPlayer=nil;

}

- (void)viewDidUnload

{

    [super viewDidUnload];

    // Release any retained subviews of the main view.

    // e.g. self.myOutlet = nil;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{

    // Return YES for supported orientations

    return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

-(void)dealloc{

}

@end

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