Question

基本上我有四个场景，在viewcontroller上，我想检测我在哪个场景，因为我在viewcontroller中有背景音乐，我想在某些场景中暂停音乐。我找到了如何在viewController中检测场景，但它很快，我只知道客观c的基础知识的被修改

SKView *skView =(SKView *)self.view;
TitleScene *sceneTitle = [TitleScene sceneWithSize:self.view.bounds.size];
BonusScene *sceneBonus = [BonusScene sceneWithSize:self.view.bounds.size];
GameScene *sceneGame = [GameScene sceneWithSize:self.view.bounds.size];
DifficultScene *sceneDifficult = [DifficultScene sceneWithSize:self.view.bounds.size]; 

   if(skView){
        if(sceneTitle){
            NSLog(@"Iam in sceneTitle");
        }
        if(sceneGame){
            NSLog(@"Iam in sceneGame");
        }
        if(sceneDifficult){
            NSLog(@"Iam in sceneDifficult");
        }
        if(sceneBonus){
        NSLog(@"Iam in sceneBonus");
        }
        else{
            NSLog(@"else");
        }

}

现在，当启动app时，它会遍历每个if语句一次，即使只在TitleScene中使用Iam。 出了什么问题？

Answer 1

为每个场景命名，然后在viewcontroller类中，执行

（SWIFT）：

if let skView = view as? SKView, let scene = skView.scene
{
   switch(scene.name)
   {
     case "name1":
     default:()
   }


}
else
{
   //Something is wrong, we do not have an SKView or a SKScene
}

目标C：

SKView *view = (SKView*)self.view ;
if(view)
{
    SKScene *scene = view.scene;
    if(scene)
    {
        NSString *name = scene.name;

       //compare names here
    }
}

检测ViewController ios中的哪个场景

1 个答案: