iOS 小白的SDAutoLayout使用方法

// 屏幕的宽高宏定义

#define DEVICE_HEIGHT  [UIScreen mainScreen].bounds.size.height

#define DEVICE_WIDTH   [UIScreen mainScreen].bounds.size.width

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // 初始化五个view

    UIView *view1 = [[UIView alloc]init];

    UIView *view2 = [[UIView alloc]init];

    UIView *view3 = [[UIView alloc]init];

    UIView *view4 = [[UIView alloc]init];

    UIView *view5 = [[UIView alloc]init];

   // 加入视图

    [self.view addSubview:view1];

    [self.view addSubview:view2];

    [self.view addSubview:view3];

    [self.view addSubview:view4];

    [self.view addSubview:view5];

    

    // view1位置

    view1.sd_layout

    .leftSpaceToView(self.view, 10)

    .topSpaceToView(self.view, 100)

    .widthIs(100)

    .heightIs(50);

    view1.backgroundColor = [UIColor orangeColor];

    

    // view2位置

    view2.sd_layout

    .leftSpaceToView(view1, 20)

    .topSpaceToView(self.view, 100)

    .widthIs(100)

    .heightIs(50);

    view2.backgroundColor = [UIColor purpleColor];

    

    // view3位置

    view3.sd_layout

    .leftSpaceToView(self.view, 10)

    .topSpaceToView(view1, 20)

    .widthIs(100)

    .heightIs(50);

    view3.backgroundColor = [UIColor magentaColor];

    

    // view4位置

    view4.sd_layout

    .leftSpaceToView(self.view, 20)

    .topSpaceToView(view3, 30)

    .widthIs((DEVICE_WIDTH - 40)/2)

    .heightIs(50);

    view4.backgroundColor = [UIColor redColor];

    

    // view5位置

    view5.sd_layout

    .leftSpaceToView(view4, 0)

    .topSpaceToView(view3, 30)

    .widthIs((DEVICE_WIDTH - 40)/2)

    .heightIs(50);

    view5.backgroundColor = [UIColor greenColor];

}

 

在这里说明一点   需要初始化完毕直接加入视图  不可先写位置

例如:

UIView *view1 = [[UIView alloc]init];

[self.view addSubview:view1];

view1.sd_layout

 .leftSpaceToView(self.view, 10)

 .topSpaceToView(self.view, 100)

 .widthIs(100)

 .heightIs(50);

 view1.backgroundColor = [UIColor orangeColor];

也可写成这样
个人习惯 看那个方便就写那种

(个人简单写博客,请各位用过的大佬多多指教)