利用controller使cocos2d自动支持180度旋转

iPad程序有一条不成文的规定：所有app必须支持屏幕旋转，至少支持180度旋转，仅仅支持一个方向的app将被无情拒绝。

目前cocos2d已经支持iPad开发，却并不支持屏幕旋转。

下面我们就利用UIController的自动旋转特性，让cocos2d支持180度旋转：

1。创建controller，且叫做TransController吧，内容如下

#import <UIKit/UIKit.h>

#define LANDSCAPE_MODE YES

@interface TransController : UIViewController {

}

@end

#import "TransController.h"

@implementation TransController

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

// Overriden to allow any orientation.

if (LANDSCAPE_MODE){

if (interfaceOrientation == UIDeviceOrientationLandscapeLeft||interfaceOrientation == UIDeviceOrientationLandscapeRight) {

return YES;

}

}else {

if (interfaceOrientation == UIDeviceOrientationPortrait||interfaceOrientation == UIDeviceOrientationPortraitUpsideDown) {

return YES;

}

}

return NO;

}

- (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)viewDidUnload {

[super viewDidUnload];

// Release any retained subviews of the main view.

// e.g. self.myOutlet = nil;

}

- (void)dealloc {

[super dealloc];

}

@end

#define LANDSCAPE_MODE YES 用来设定app的横竖屏模式

2。修改appdelegate

无论程序是横／竖，setDeviceOrientation都为竖屏，方向总是相对的，呵呵，即总是：

[[CCDirector sharedDirector] setDeviceOrientation:CCDeviceOrientationPortrait];

TransController *tc = [[TransController alloc] init];

tc.view.frame = window.frame;

[window addSubview:tc.view];

[[CCDirector sharedDirector] attachInView:tc.view];

tc无需释放（因为没有意义），也不可以释放（释放后将不能旋转），如果你喜欢释放的话，就在.h中定义然后dealloc中去release吧。