UIStackView上手教程

https://www.jianshu.com/p/19fbf3ee2840

https://www.cnblogs.com/bokeyuanlibin/p/5693575.html

https://www.cnblogs.com/breezemist/p/5776552.html

对于宽度不一致的SubViews ,需要用约束控制其自定义的宽度or高度 ，可以用masonry

例子：

UIStackView *stackContainerView = [[UIStackView alloc] init];

    self.stackContainerView = stackContainerView;

    stackContainerView.axis = UILayoutConstraintAxisHorizontal;

    stackContainerView.spacing = 4 ;

    stackContainerView.alignment = UIStackViewAlignmentFill;

    stackContainerView.distribution = UIStackViewDistributionEqualSpacing;

    [self.contentView addSubview:stackContainerView];

    

    CGFloat stackViewWidth = 0;

//    创建标签view

    

    for (int i = 0; i < self.recommendModel.marketing.count; i ++) {

       

            NSString *tagKey = self.recommendModel.marketing[i];

            MZTagView *tagview = [[MZTagView alloc] initWithTagKey:tagKey];

            [stackContainerView addArrangedSubview:tagview];

            [tagview mas_makeConstraints:^(MASConstraintMaker *make) {

                make.centerY.equalTo(stackContainerView);

                make.width.mas_equalTo(tagview.tagViewWidth);

                make.height.mas_equalTo( 20 *MZ_RATE);

            }];

            

            stackViewWidth += tagview.tagViewWidth;

        

        

    }

    stackViewWidth += (self.recommendModel.marketing.count-1)*4;

    [stackContainerView mas_makeConstraints:^(MASConstraintMaker *make) {

        make.centerY.equalTo(self.avatorView);

        make.width.mas_equalTo(stackViewWidth);

        make.height.mas_equalTo(20 );

        make.right.equalTo(self.contentView).offset(-16);

    }];