ios - 同时移动2个物体

Question

在我当前的 ios 项目中，我将屏幕的一侧专用于一个对象，将屏幕的另一侧专用于另一个对象，我已经做到了，如果您在屏幕的一侧滑动手指指定的对象会移动。但是，我想这样做，以便您可以同时以不同的运动移动两个对象，但我不知道该怎么做。以下是我当前的代码。

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch = [[event allTouches] anyObject];
    CGPoint location = [touch locationInView:touch.view];

    if (location.x <= 270 ) {
        [Person setCenter:CGPointMake(location.x, Person.center.y)];

    }
    else  {
        [Person1 setCenter:CGPointMake(location.x, Person1.center.y)];
    }
}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch = [[event allTouches] anyObject];
    CGPoint location = [touch locationInView:touch.view];

    if (location.x <= 270 ) {
        [Person setCenter:CGPointMake(location.x, Person.center.y)];
    }
    else  {
        [Person1 setCenter:CGPointMake(location.x, Person1.center.y)];
    }
}

Answer 1

您应该开始处理在 touches 集中传递的多个触摸 - 遍历所有 UITouch 对象并进行处理。

编辑: 这是您的代码:

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    for(UITouch *touch in [event allTouches]) {
        CGPoint location = [touch locationInView:touch.view];

        if (location.x <= 270 ) {
            [Person setCenter:CGPointMake(location.x, Person.center.y)];
        }
        else  {
            [Person1 setCenter:CGPointMake(location.x, Person1.center.y)];
        }
    }
}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
    for(UITouch *touch in [event allTouches]) {
        CGPoint location = [touch locationInView:touch.view];

        if (location.x <= 270 ) {
            [Person setCenter:CGPointMake(location.x, Person.center.y)];
        }
        else  {
            [Person1 setCenter:CGPointMake(location.x, Person1.center.y)];
        }
    }
}