@xff8175 写道：

折腾了很久，总结一下，一个字累

1、设置打开相册为横屏
本身cocos是横屏的，但相册默认是竖屏的，所以要继承一下相册类自己实现横屏方法，把两个类引入到项目下即可
UIImagePickerController+LandScapeImagePicker.h

import

@interface UIImagePickerController (LandScapeImagePicker)
- (BOOL)shouldAutorotate;
- (NSUInteger)supportedInterfaceOrientations;

@end

UIImagePickerController+LandScapeImagePicker.mm

import "UIImagePickerController+LandScapeImagePicker.h"

@implementation UIImagePickerController (LandScapeImagePicker)
- (BOOL)shouldAutorotate {
return NO;
}

• (NSUInteger)supportedInterfaceOrientations{
  // return UIInterfaceOrientationMaskLandscape;
  return UIInterfaceOrientationMaskLandscapeRight|UIInterfaceOrientationMaskLandscapeLeft;
  }

@end

2、解决cocos在相册横屏返回游戏后，界面某个时刻进入后台再恢复时界面变为竖屏的bug
由于RootViewController.mm的方法问题，导致后台游戏界面恢复回来后，进入竖屏状态，修改如下：
// For ios6, use supportedInterfaceOrientations & shouldAutorotate instead
- (NSUInteger) supportedInterfaceOrientations{

ifdef _IPHONE6_0

//cocos默认值
// return UIInterfaceOrientationMaskAllButUpsideDown;
//横屏修改为以下值
return (UIInterfaceOrientationMaskLandscapeLeft |
UIInterfaceOrientationMaskLandscapeRight);
// return UIInterfaceOrientationMaskLandscape;

endif

}

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