cocos2dx3.17.2横竖屏切换

在游戏中需要横竖屏切换，常用大厅到子游戏

IOS

1. 修改Application.mm, 首先定义变量

static RootViewController* s_rv;
UIInterfaceOrientationMask orientation = UIInterfaceOrientationMaskLandscape;

2. 在didFinishLaunchingWithOptions中对s_rv进行赋值操作

 s_rv = _viewController;

3. 增加下面两个方法

- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
    return orientation;
}

+ (void)setOrientation:(NSDictionary*)dic {
    NSString* dir = [dic valueForKey:@"orientation"];
    auto glview = cocos2d::Director::getInstance()->getOpenGLView();
    float scaleFactor = CC_CONTENT_SCALE_FACTOR();
    if ([dir isEqualToString:@"V"]) {
        orientation = UIInterfaceOrientationMaskPortrait;
        [[UIDevice currentDevice] setValue:[NSNumber numberWithInteger:UIInterfaceOrientationPortrait] forKey:@"orientation"];
        
        NSInteger w =s_rv.view.frame.size.width;
        NSInteger h =s_rv.view.frame.size.height;
        glview->setFrameSize(w*3, h*3);  //这一步必须设置，glview 的大小为RootViewController
    } else {
        orientation = UIInterfaceOrientationMaskLandscape;
        [[UIDevice currentDevice] setValue:[NSNumber numberWithInteger:UIInterfaceOrientationLandscapeRight] forKey:@"orientation"];
        NSInteger w =s_rv.view.frame.size.width;
        NSInteger h =s_rv.view.frame.size.height;
        glview->setFrameSize(w*3, h*3); //这一步必须设置，glview 的大小为RootViewController
    }
}

4. 到这里ios的设置基本上完成了，可以在Lua里调用了。最后面贴lua代码

Android

1. 修改 AppActivity , 首先定义变量
   public static AppActivity instance = null;
   并在onCreate中初始化变量为instance = this

2. 添加静态方法

public static void changeOrientationH(boolean val){
    if (val == true){
        instance.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
        Log.d(LOG_TAG, "切换横屏");
    }
    else{
        instance.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        Log.d(LOG_TAG, "切换竖屏");
    }
}

3. 修改CCApplication-android.cpp, 修改这个方法applicationScreenSizeChanged

void Application::applicationScreenSizeChanged(int newWidth, int newHeight) {
    CCLOG(" android applicationScreenSizeChanged %d %d", newWidth, newHeight);
    cocos2d::GLView *cocosView = cocos2d::Director::getInstance()->getOpenGLView();
    cocosView->setFrameSize(newWidth, newHeight);
}

4. 修改Cocos2dxGLSurfaceView.java, 当朝向改变的时候，同步修改mCocos2dxRenderer

 @Override
protected void onSizeChanged(final int pNewSurfaceWidth, final int pNewSurfaceHeight, final int pOldSurfaceWidth, final int pOldSurfaceHeight) {
    if(!this.isInEditMode()) {
        if(pNewSurfaceWidth < pNewSurfaceHeight)
            this.mCocos2dxRenderer.setScreenWidthAndHeight(pNewSurfaceHeight, pNewSurfaceWidth);
        else
            this.mCocos2dxRenderer.setScreenWidthAndHeight(pNewSurfaceWidth, pNewSurfaceHeight);
    }
}

脚本调用, 注意Lua调用oc方法的时候传参数必须是字典的形式传递

local function changeScreenOrientationH(val)
    if device.platform == 'android' then
        local luabridge = require('cocos.cocos2d.luaj')
        local METHOD_NAME = 'changeOrientationH'
        local JAVA_CLASS_NAME = 'org/cocos2dx/lua/AppActivity'

        local suc, version = luabridge.callStaticMethod(JAVA_CLASS_NAME, METHOD_NAME, {val}, '(Z)V')
    elseif device.platform == 'ios' then
        local luabridge = require('cocos.cocos2d.luaoc')
        local AppController = "AppController"
        local orientation = val and "H" or "V"
        local suc, id = luabridge.callStaticMethod(AppController, "setOrientation", {orientation = orientation})
        if suc == true and id ~= "" then 
            return id
        end
    end
end