Mattcn's Blog

In IOS development, normally we use

[UIDevice currentDevice]

or

if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {// todo}

to check the current resolution and do the custom stuffs. However, in cocos2d-x cross platform environment, I prefer to use the template below to custom UI positions or physics vars in different types of resolutions.

    if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS) {
    // IOS Resolution:
        if( (CCDirector::sharedDirector()->getWinSize().height > kDeviceIPhoneHeight ) &&
           (CCDirector::sharedDirector()->getWinSize().width > kDeviceIPhoneWidth )) {
            // iPad Resolution implement here:
        }
        else {
            // iPhone Resolution implements here:
        }
    }
    else if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID){
    // Android:

    }

else {

// iPhone Resolution implements here:

}

}

else if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID){

// Android:

}

this template may needs to update when iPad2-HD/iPad3 coming out.

Note:
1. 打开GameConfig.h文件, 定义Autorotation类型, kGameAutorotationUIViewController by default:

#if defined(__ARM_NEON__) || TARGET_IPHONE_SIMULATOR
#define GAME_AUTOROTATION kGameAutorotationUIViewController
/*
#define kGameAutorotationNone 0
#define kGameAutorotationCCDirector 1
#define kGameAutorotationUIViewController 2
/*

2.在RootViewController里,找到如下方法:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

根据Config里定义的类型,选择屏幕适应性: 源代码里都有很好的范例:

#elif GAME_AUTOROTATION == kGameAutorotationUIViewController
//
// EAGLView will be rotated by the UIViewController
//
// Sample: Autorotate only in landscpe mode
//
// return YES for the supported orientations
if( interfaceOrientation == UIInterfaceOrientationLandscapeLeft ||
interfaceOrientation == UIInterfaceOrientationLandscapeRight )
return YES;

// Unsupported orientations:
// UIInterfaceOrientationPortrait, UIInterfaceOrientationPortraitUpsideDown
return NO;

例如只想显示Portrait:

if( interfaceOrientation == UIInterfaceOrientationPortrait)
return YES;