检测屏幕左侧/右侧部分的触摸

Question

我想创建一个游戏，但我需要检测屏幕左侧或右侧（横向）是否被触摸。我怎样才能做到这一点？

Answer 1

我建议在发布问题之前查看iOS教程，例如iOS Stanford。然而，与此同时，类似这样的事情可以这样做：

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { 
    UITouch *myTouch = [touches anyObject]; 

    CGPoint aPoint = [myTouch locationInView:self.view]; 

    if(aPoint.x < 160) { //Left 
     NSLog(@"Tapping on the left side of the screen is for communists!"); 
    else // Right 
     NSLog(@"User tapped on the right side! Ohh Yeah!"); 
}