cocos2d-x 菜鸟学习笔记二（自适应屏幕分辨率）

来源：互联网发布：华迪实训基地网络设计编辑：程序博客网时间：2024/04/30 19:43

在android中，适应各种分辨率是个很头疼的事，特别是对于游戏来说……网上教程介绍得已经很详细了，下面是个人认为写得比较全的文章链接：

1.http://codingnow.cn/cocos2d-x/975.html 或者http://blog.csdn.net/gg137608987/article/details/8302699

2.http://article.ityran.com/archives/3762

其实对于我来说，最简单的屏幕适配就是使用CCEGLView::sharedOpenGLView()->setDesignResolutionSize(width,Height, kResolutionShowNoBorder);在我看来，setDesignResolutionSize()就是根据对应图片资源尺寸，也就是你设计的界面元素图片最适合的显示分辨率，按最适当的比例显示到屏幕上。这样的话，除了让其它界面元素都使用相对坐标（应该没几个会使用绝对坐标的吧……），就没多少需要做的了。

在最近更新的版本里，已经没有了setResourceDirectory，取而代之的是setSearchPaths，以下是关于它的描述：

    /**      *  Sets the array of search paths.     *      *  You can use this array to modify the search path of the resources.     *  If you want to use "themes" or search resources in the "cache", you can do it easily by adding new entries in this array.     *     *  @note This method could access relative path and absolute path.     *        If the relative path was passed to the vector, CCFileUtils will add the default resource directory before the relative path.     *        For instance:     *        On Android, the default resource root path is "assets/".     *        If "/mnt/sdcard/" and "resources-large" were set to the search paths vector,     *        "resources-large" will be converted to "assets/resources-large" since it was a relative path.     *     *  @param searchPaths The array contains search paths.     *  @see fullPathForFilename(const char*)     *  @since v2.1     */

如果想显示比较完整清晰，那么针对不同分辨率设计对应尺寸的图片将是必要的，setSearchPaths可以用来设定引用资源的路径，根据不同分辨率设定引用对应的图片资源即可保证完美清晰的显示。下面是cocosWiki上的使用示例：

// set searching paths to "/mnt/sd/example" and "/data/data/org.cocos2dx.example" vector<string> searchPaths;searchPaths.push_back("/mnt/sd/example");searchPaths.push_back("/data/data/org.cocos2dx.example");CCFileUtils::setSearchPaths(searchPaths);  // engine will find "1.png" in /mnt/sd/example, if there it is not found, then engine will find "1.png" in /data/data/org.cocos2dx.example// if not found, engine will find "1.png" in Resources/ (this path is platform dependent)CCSprite *pSprite = CCSprite::create("1.png");

下面还有些文件命名的注意事项：

Do not use -hd, -ipad & -ipadhd suffix（后缀） as the "file" name field in .fnt file
Do not use -hd, -ipad & -ipadhd suffix（后缀） as the "textureFilename" name field in .plist file
Do not use -hd, -ipad & -ipadhd suffix（后缀） as the "image source" name field in .tmx file
You should set shared resource's scale property to achieve the same display size on both Retina & Non-Retina devices, but particles are exceptional.
Use centralized strategy as you can

原文章还包含了setSearchResolutionsOrder的使用示例，这里是示例引用的原链接：http://www.cocos2d-x.org/projects/cocos2d-x/wiki/Mechanism_of_loading_resources