android解决方案:
1.在游戏的主activity中编写一个静态方法(继承Cocos2dxActivity)
public static void changedActivityOrientation(int orientation){
switch(orientation)
{
case 1://横屏
instance.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
break;
case 2://竖屏
instance.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
break;
}
}
2.在需要切换横竖屏的C++代码中通过JNI调用changedActivityOrientation方法,如下所示
//切换竖屏代码
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
JniMethodInfo minfo;
if( JniHelper::getStaticMethodInfo(minfo,"org/cocos2dx/zylgame/CzmjGame","changedActivityOrientation","(I)V") )
{
minfo.env->CallStaticVoidMethod(minfo.classID,minfo.methodID,1);
}
CCEGLView *pEGLView = CCDirector::sharedDirector()->getOpenGLView();
CCSize frameSize = pEGLView->getFrameSize();
pEGLView->setFrameSize(frameSize.height,frameSize.width);
pEGLView->setDesignResolutionSize(480,800, kResolutionExactFit); //480,800为该游戏的分辨率大小(宽高)
#endif
//切换横屏代码
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
JniMethodInfo minfo;
if( JniHelper::getStaticMethodInfo(minfo,"org/cocos2dx/zylgame/CzmjGame","changedActivityOrientation","(I)V") )
{
minfo.env->CallStaticVoidMethod(minfo.classID,minfo.methodID,2);
}
CCEGLView *pEGLView = CCDirector::sharedDirector()->getOpenGLView();
CCSize frameSize = pEGLView->getFrameSize();
pEGLView->setFrameSize(frameSize.height,frameSize.width);
pEGLView->setDesignResolutionSize(800,480, kResolutionExactFit);//480,800为该游戏的分辨率大小(宽高)
#endif
IOS解决方案:
在ios平台,cocos2dx的视图其实都是显示在一个UIViewController的。所以我们需要旋转UIViewController的方向。
在ios8以前只需调用以下代码:
[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLandscapeRight]; [UIViewController attemptRotationToDeviceOrientation]; s_self->viewController.view.transform = CGAffineTransformMakeRotation(M_PI/2); float width =s_self->viewController.view.bounds.size.width; float height =s_self->viewController.view.bounds.size.height; s_self->viewController.view.bounds = CGRectMake(0, 0, height, width);
但是在ios8以后这样做就不行了。苹果不推荐手动修改UIViewController的方向。
苹果推荐的是重力使得屏幕自动旋转然后修改UI布局;或者是在切换UIViewController,新UIViewController有新的方向。
ios8做法:新建一个RootViewController2,代码跟RootViewController一样,只修改设置方向的相关代码。
在AppController里引入并初始化RootViewController2
但是在ios8以后这样做就不行了。苹果不推荐手动修改UIViewController的方向。
苹果推荐的是重力使得屏幕自动旋转然后修改UI布局;或者是在切换UIViewController,新UIViewController有新的方向。
ios8做法:新建一个RootViewController2,代码跟RootViewController一样,只修改设置方向的相关代码。
1.在IOS工程目录下面找到RootViewController.h,RootViewController.mm拷贝一份命名为RootViewControllerV.h,RootViewControllerV.mm,打开.mm文件修改以下代码
- (NSUInteger) supportedInterfaceOrientations{
#ifdef __IPHONE_6_0
return UIInterfaceOrientationMaskPortrait;//竖屏
//return UIInterfaceOrientationMaskLandscape;//横屏
#endif
}
2.打开AppController.h增加以下代码
@class RootViewControllerV;//类声明
RootViewControllerV *viewControllerV;//声明实例变量
+(void)changeRootViewControllerH;//静态方法(修改屏幕为横屏)
+(void)changeRootViewControllerV;//静态方法(修改屏幕为竖屏)
3.打开AppController.mm增加以下代码
static AppController *s_self;
//修改函数didFinishLaunchingWithOptions增加以下代码
s_self = self;
viewControllerV = [[RootViewControllerV alloc] initWithNibName:nil bundle:nil];
viewControllerV.wantsFullScreenLayout = YES;
//横屏切换静态方法的实现
+(void)changeRootViewControllerH{
EAGLView *__glView = (EAGLView *)s_self->viewControllerV.view;
s_self->viewControllerV.view = nil;
s_self->viewController.view = __glView;
if ([[UIDevice currentDevice].systemVersion floatValue] < 6.0)
{
[s_self->window addSubview:s_self->viewController.view];
}
[s_self->window setRootViewController:s_self->viewController];
//[__glView setOriginalRect:__glView.frame];
}
//竖屏切换静态方法的实现
+(void)changeRootViewControllerV{
EAGLView *__glView = (EAGLView *)s_self->viewController.view;
s_self->viewController.view = nil;
s_self->viewControllerV.view = __glView;
if ([[UIDevice currentDevice].systemVersion floatValue] < 6.0)
{
[s_self->window addSubview:s_self->viewControllerV.view];
}
[s_self->window setRootViewController:s_self->viewControllerV];
}
4.在C++代码中调用以上两个静态方法来进行屏幕横竖屏切换(C++调用OC即.cpp改为.mm进行混编)
开发中遇见的问题:
部分手机进行横竖屏切换正常,部分设备切换时崩溃
1.检查AndroidManifest.xml文件中是否有android:targetSdkVersion="18" 选项,移去该选项重新打包测试。
(估计只要设备android系统与该选项指定的API版本相同安装该应用才不会崩溃,移除该选项后其它设备方可正常运行)