让MpMoviePlayerViewController播放时自动横屏

网上有很多关于MpMoviePlayerViewController播放时自动横屏的教程,但试用了好些个也不行.总结过后得出以下方法:

首先,在AppDelegate.m文件中,加入:

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
		
		//	UIInterfaceOrientationMaskLandscape  支持左右横屏
		//	UIInterfaceOrientationMaskAll  支持四个方向旋转
		//	UIInterfaceOrientationMaskAllButUpsideDown 支持除了UpsideDown以外的旋转
		return UIInterfaceOrientationMaskAllButUpsideDown;
}

再写一个继承自MPMoviePlayerViewController的类:

//
//  MyMoviePlayViewController.h
//  Medicine
//
//  Created by Jz on 14-3-17.
//  Copyright (c) 2014年 Jz. All rights reserved.
//
//	重写MpMoviePlayerController类 实现自动横屏

#import <MediaPlayer/MediaPlayer.h>

@interface MyMoviePlayViewController : MPMoviePlayerViewController

@end

在MyMoviePlayViewController.m中:

MyMoviePlayerViewController.m

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return UIDeviceOrientationIsLandscape(interfaceOrientation);
}

- (BOOL)shouldAutorotate
{
    return YES;
}

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscape;
}

- (NSUInteger)application:(UIApplication*)application supportedInterfaceOrientationsForWindow:(UIWindow*)window
{
		
    return UIInterfaceOrientationMaskAllButUpsideDown;
}

最后:

#import "MyMoviewPlayViewController"
		
		..........
		
		MyMoviePlayViewController *playerVC = [[MyMoviePlayViewController alloc] initWithContentURL:XXXXXXX];

		[self presentMoviePlayerViewControllerAnimated: playerVC];

这样 在播放的时候,自动就会跳转为横屏.并且返回后跳回竖屏.