Question

[self.view addSubview:self.scrollView];
[self.scrollView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.top.equalTo(self.view.mas_top).with.offset(.0);
    make.left.equalTo(self.view.mas_left).with.offset(0.0);
    make.right.equalTo(self.view.mas_right).with.offset(0.0);
    make.bottom.equalTo(self.view.mas_bottom).with.offset(0.0);
}];
[self.scrollView addSubview:self.contentView];
[self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.edges.equalTo(self.scrollView);
    make.width.equalTo(self.scrollView);
}];
[self.contentView addSubview:self.cycleScrollView];
[self.cycleScrollView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.top.equalTo(self.contentView.mas_top).with.offset(.0);
    make.left.equalTo(self.contentView.mas_left).with.offset(0.0);
    make.right.equalTo(self.contentView.mas_right).with.offset(0.0);
    make.height.equalTo(@(SCREEN_WIDTH/3));
}];
[self.contentView addSubview:self.collectionView];
[self.collectionView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.top.equalTo(self.cycleScrollView.mas_bottom).with.offset(5.0);
    make.left.equalTo(self.contentView.mas_left).with.offset(5.0);
    make.right.equalTo(self.contentView.mas_right).with.offset(-5.0);
    make.height.equalTo(@(self.collectionViewCellHight * number));
}];
[self.contentView addSubview:self.tableView];
[self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.top.equalTo(self.collectionView.mas_bottom).with.offset(5.0);
    make.left.equalTo(self.contentView.mas_left).with.offset(5.0);
    make.right.equalTo(self.contentView.mas_right).with.offset(-5.0);
    make.height.equalTo(@(SCREEN_WIDTH/3 * [self.categoryItems count] + HEADERVIEWHIGHT));
}];

[self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.bottom.equalTo(self.tableView.mas_bottom).with.offset(50.0);
}];

和砌体警告：

Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. 
Try this: 
    (1) look at each constraint and try to figure out which you don't expect; 
    (2) find the code that added the unwanted constraint or constraints and fix it. 
(
"<MASLayoutConstraint:0x7f93031d8880       UITableView:0x7f930489b800.height == 415>",
"<MASLayoutConstraint:0x7f930342c990 UITableView:0x7f930489b800.height == 290>"
)

Will attempt to recover by breaking constraint

我在scrollview中创建了一个contentView，在contentView中创建了所有其他视图。但是collectionView和tableView的高度将会改变，

所以这样做的结果出错了。我的问题是当子视图的高度发生变化时，我该怎么做才能解决这个问题？谢谢你。

编辑：

当tableview的数据源发生变化时，从2变为3，但是tableview的高度没有显示正确的高度。

Answer 1

我没有使用过Masonry-iOS-OSX，但就autolayout而言，不要给滚动视图的高度（当你将滚动视图连接到超级视图的顶部和底部时这样做），它的高度应该取决于内部视图。删除滚动视图的顶部和底部约束，并将对齐中心放置到超级视图。这样当集合视图的高度发生变化时，它将改变滚动视图的高度。希望它能解决你的问题。

UIScrollView Autolayout Masonry子视图高度已更改

1 个答案: