为什么内容

在AppDelegate.cpp，我们在布尔AppDelegate::applicationDidFinishLaunching()下面的代码：为什么内容

glview->setDesignResolutionSize(designResolutionSize.width, designResolutionSize.height, ResolutionPolicy::SHOW_ALL); 
auto frameSize = glview->getFrameSize(); 

// if the frame's height is larger than the height of medium size. 
if (frameSize.height > mediumResolutionSize.height) 
{   
    director->setContentScaleFactor(MIN(largeResolutionSize.height/designResolutionSize.height, largeResolutionSize.width/designResolutionSize.width)); 
    //Add Code to use large assets 
} 
// if the frame's height is larger than the height of small size. 
else if (frameSize.height > smallResolutionSize.height) 
{   
    director->setContentScaleFactor(MIN(mediumResolutionSize.height/designResolutionSize.height, mediumResolutionSize.width/designResolutionSize.width)); 
    //Add Code to use medium assets 
} 
// if the frame's height is smaller than the height of medium size. 
else 
{   
    director->setContentScaleFactor(MIN(smallResolutionSize.height/designResolutionSize.height, smallResolutionSize.width/designResolutionSize.width)); 
    //Add Code to use small assets 
} 


director->setContentScaleFactor(MIN(largeResolutionSize.height/designResolutionSize.height, largeResolutionSize.width/designResolutionSize.width));

为什么我们采取高度或宽度的比值的MIN？为什么我们不总是采取高度或宽度？这不会不一致吗？

由于我们使用的资产的大小是固定的（例如，在每个区块中，我们选择大型，中型或小型资产），对于不同的纵横比率，缩放比例不同，可能具有相同的高度或宽度？这不会导致更糟糕的问题，如屏幕上的物理和图像不匹配吗？

来源

2016-11-25 Kaizer Sozay