iOS 利用函数式编程方法创建基础控件

UILabel *labelOrigin = [UILabel new];
labelOrigin.frame = CGRectMake(15, 50, self.view.frame.size.width-15, 50);
labelOrigin.font = [UIFont systemFontOfSize:14];
labelOrigin.textColor = [UIColor darkGrayColor];
labelOrigin.text = @"UILabel_FuncChains";
labelOrigin.backgroundColor = [UIColor yellowColor];
[self.view addSubview:labelOrigin];

UILabel *label = [UILabel new]
.func_frame(CGRectMake(15, 50, self.view.frame.size.width-30, 50))
.func_font([UIFont systemFontOfSize:18])
.func_textColor([UIColor darkGrayColor])
.func_text(@"UILabel_FuncChains")
.func_backgroundColor([UIColor yellowColor]);
[self.view addSubview:label];

UIButton *buttonOrigin = [[UIButton alloc]init];
    buttonOrigin.frame = CGRectMake(15, 150, self.view.frame.size.width-15, 50);
    CAGradientLayer *gradientLayer = [CAGradientLayer layer];
    gradientLayer.colors = @[(__bridge id)UIColor.redColor.CGColor, (__bridge id)UIColor.blueColor.CGColor];
    gradientLayer.locations = @[@0.0, @1.0];
    gradientLayer.startPoint = CGPointMake(0, 0);
    gradientLayer.endPoint = CGPointMake(1, 0);
    gradientLayer.frame = buttonOrigin.bounds;
    [buttonOrigin.layer addSublayer:gradientLayer];

    buttonOrigin.titleLabel.font = [UIFont systemFontOfSize:14];
    [buttonOrigin setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [buttonOrigin setTitle:@"UIButton_FuncChains" forState:UIControlStateNormal];
    [buttonOrigin addTarget:self action:@selector(buttonClick) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:buttonOrigin];

UIButton *button = UIButton.func_init.func_frame(CGRectMake(15, 150, self.view.frame.size.width-15, 50))
.func_gradientHorizontalColor(UIColor.redColor,UIColor.blueColor)
.func_font([UIFont systemFontOfSize:14])
.func_titleColor([UIColorwhiteColor])
.func_title(@"UIButton_FuncChains")
.func_addTarget_action(self,@selector(buttonClick));
[self.view addSubview:button];