Objective c swift中Obj-C alloc语句的等价物

我想在swift中使用这个库。它是用Obj-C写的

我已经添加了标题和桥接等，现在，我不知道这句话的等价物是什么：

        //Color did change block declaration
    NKOColorPickerDidChangeColorBlock colorDidChangeBlock = ^(UIColor *color){
        //Your code handling a color change in the picker view.
    };

    NKOColorPickerView *colorPickerView = [[NKOColorPickerView alloc] initWithFrame:CGRectMake(0, 0, 300, 340) color:[UIColor blueColor] andDidChangeColorBlock:colorDidChangeBlock];

    //Add color picker to your view
    [self.view addSubview:colorPickerView];

或

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我喜欢第一条路。它更清晰易读。

哇，太棒了！非常感谢。

let colorPickerView = NKOColorPickerView(frame: CGRect(x: 0, y: 0, width: 300, height: 340), color: UIColor.blueColor()) { (color) -> Void in
    // Your code handling a color change in the picker view.
}

view.addSubview(colorPickerView)

var colorDidChangeBlock: NKOColorPickerDidChangeColorBlock = { (color) in
    // Your code handling a color change in the picker view.
}

let colorPickerView = NKOColorPickerView(frame: CGRect(x: 0, y: 0, width: 300, height: 340), color: UIColor.blueColor(), andDidChangeColorBlock: colorDidChangeBlock)
view.addSubview(colorPickerView)