constraints

If I have a 4x1 Cell structure with that represents a=[A1 A2 A3 A4] : a=cell(4,1) a{1}=[1 3 1 0] a{2}=[3 3 3 3] a{3}=[3 2 3 2] a{4}=[3 3 3 2] B=[1 1 1 2]; %priority I would like to do the following : Pick cells that correspond to priority B=[1 1 1 2] (where B=1 is highest priority and A=3 ) Which means, find any cell that begins with [3 3 3 #], where all their priority is 1's in B . ideal answer should be : a{2} = [3 3 3 3] and a{4} = [3,3,3,2] My try is to add this : [P arrayind]=min(B) % problem is that arrayind return index=1 only .. not all indices if P==1 arrayindex = 1:4 ; %look at each

I have a cell in a tableview that contains a horizontal paging collection view. Inside each page of this collection view there is a vertical collection view. In order to avoid a "scroll-in-scroll" problem, I disabled vertical scrolling in the vertical collection views. The vertical collection view's cell count is not static and can be any number. So this creates a problem: the collection view (you'll have to ask me for clarification about which one) won't fit properly into the table view's cell anymore. To solve this, I changed the table view's cell height by changing the constraints in the

I have modified the question to be more information provided and clear. I wanted to have a dynamic table view cell, with a flexible height of UITextView and an optional UIImageView. Based on the content size of the UITextView and the optional UIImageView, the cell can be shrunk or extended. Here is what I expected to have (with the below picture): Normal size: height of TextView is fixed (say 77). ImageView width and height are also fixed (say 130, 130) When content size of TextView decreasing, cell is shrunk and ImageView moves up. When there is no image in ImageView, the ImageView is not

Take the example that I have of a table called classes that holds university classes and a table called students that holds students. A class has many students and a student can only take one class. (1 to many relationship). If I had a column in classes that stored the total number of students a class has, this feels like it should violate 3NF. But the dependency is in a separate table. What is this dependency called? And can we say this is violating 3NF? Because in some sense it has all the problems of a 3NF violation. I was wondering if this was a related case. TL;DR But the dependency is in

I know this is a little newbie style question but I couldn't find any subject about this and I have to horizontally align multiple buttons in my view controller. I tried to 2 approach first one is separate them with UIViews and <= width changed constraints priority and others. Second one doesn't have UIViews but buttons aligned in starboard very well. I already watched Stanford auto layout lessons. But I couldn't find any solution about this. I don't know how to approach to align multiple buttons or views can someone help me to learn and solve this problem ? Thanks ! You just need to give

How can I modify the multiplier of a constraint programmatically? I have set the following: [self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:self.view attribute:NSLayoutAttributeWidth multiplier:0.5 constant:0.0]]; and I need to modify it to this: [self.view addConstraint:[NSLayoutConstraint constraintWithItem:_button attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:self.view attribute:NSLayoutAttributeWidth multiplier:1.0 constant:0.0]]; Leo As others said, you have to delete