详解ios中scrollView上使用masonry

使用scrollview的一个子视图对contentsize进行调整

_scroll_bg = [[uiscrollview alloc] initwithframe:cgrectmake(0, 100, screen_w, 200)];
  _scroll_bg.pagingenabled = yes;
  _scroll_bg.delegate = self;
  _scroll_bg.backgroundcolor = [uicolor redcolor];
  [self.view addsubview:_scroll_bg];

1，现在scrollview添加一个主要子视图，大小贴合scrollview

uiview *bgview = [[uiview alloc] init];
  bgview.backgroundcolor = [uicolor bluecolor];
  [_scroll_bg addsubview:bgview];
  [bgview mas_makeconstraints:^(masconstraintmaker *make) {
    make.top.left.bottom.and.right.equalto(_scroll_bg).with.insets(uiedgeinsetszero);
    make.width.equalto(_scroll_bg);
  }];

2，此后所有子视图都需添加在此bgview上

uiview *childv = [[uiview alloc] init];
  childv.backgroundcolor = [uicolor cyancolor];
  [bgview addsubview:childv];
  [childv mas_makeconstraints:^(masconstraintmaker *make) {
    make.left.right.mas_equalto(0);
    make.top.mas_equalto(250);
    make.height.mas_equalto(1000);
  }];

3，以最后所加子视图为准，再对bgview进行重新约束

[bgview mas_makeconstraints:^(masconstraintmaker *make) {
    make.bottom.equalto(childv.mas_bottom);
  }];

以上就是本次给大家整理的全部内容，如果还有任何不明白的地方可以在下方的留言区讨论，感谢你对的支持。