layoutSubviews

@interface TwoView ()

 

@property (nonatomic,strong)UIView *twoView1;

@property (nonatomic,strong)UIView *twoView2;

 

@end

 

@implementation TwoView

 

- (instancetype)initWithFrame:(CGRect)frame

{

    if (self = [super initWithFrame:frame]) {

        _twoView1 = [[UIView alloc] initWithFrame:CGRectMake(10, 10, 50, 50)];

        _twoView1.backgroundColor = [UIColor redColor];

 

        _twoView2 = [[UIView alloc] initWithFrame:CGRectMake(70, 10, 50, 50)];

        _twoView2.backgroundColor = [UIColor redColor];

        [self addSubview:_twoView2];

        [self addSubview:_twoView1];

    }

    return self;

}

 

//如果initWithFrame中设置了子控件的frame  layoutSubviews这个方法不写也可以.

//layoutSubviews这个方法是 重新布局子控件的Frame , 如果写了会以layoutSubviews里面的Frame为主

-(void)layoutSubviews{

    [super layoutSubviews];

    _twoView1.frame = CGRectMake(10, 10, 80, 50);

    _twoView2.frame = CGRectMake(70, 10, 80, 50);

 

}