View’s frame determines its location in superview. View’s bounds determines its subviews locations. That means, if you change view’s bounds, its location won’t be changed, but all of its subviews location will be changed. Positive width and height is like you draw a view from upper-left to bottom-right, while negative value is from bottom-right to … Read more
Okay I officially answered my own question but since I didn’t find it anywhere before I’ll post the answer here: //To calculate the search bounds… //First we need to calculate the corners of the map so we get the points CGPoint nePoint = CGPointMake(self.mapView.bounds.origin.x + mapView.bounds.size.width, mapView.bounds.origin.y); CGPoint swPoint = CGPointMake((self.mapView.bounds.origin.x), (mapView.bounds.origin.y + mapView.bounds.size.height)); //Then … Read more
The draft n4296 for C11 is explicit that pointing one past an array is perfecly defined: 6.5.6 Language / Expressions / Additive operators: § 8 When an expression that has integer type is added to or subtracted from a pointer, the result has the type of the pointer operand. … Moreover, if the expression P … Read more
How to do this correctly Your UIViewController subclass should override the method viewWillLayoutSubviews, see also here. When this method is called, the viewController’s view has its correct size and you can make any necessary adjustments to subviews prior to the layout pass over the subviews. Swift override func viewWillLayoutSubviews() { super.viewWillLayoutSubviews() NSLog(“bounds = \(self.view.bounds)”) } … Read more
Basically, its not useful enough. I think your example points out the only advantage of a lower bound, a feature the FAQ calls Restricted Instantiation: The bottom line is: all that a ” super ” bound would buy you is the restriction that only supertypes of Number can be used as type arguments. …. But … Read more
Start from the top! var elements = [1, 5, 5, 3, 5, 2, 4]; for(var i = elements.length – 1; i >= 0; i–){ if(elements[i] == 5){ elements.splice(i, 1); } }
If my superview is a box measuring 10 units on each side, and my subview is 20 units wide, with clipsToBounds set to YES, I’ll only see the part of the subview that fits within the bounds of the superview. Otherwise, if clipsToBounds is set to NO, I’ll see the entire subview, even the parts … Read more
Marco’s answer above is correct, but just to expand on the question of “under what context”… frame – this is the property you most often use for normal iPhone applications. most controls will be laid out relative to the “containing” control so the frame.origin will directly correspond to where the control needs to display, and … Read more
I had a similar question, but wasn’t satisfied with the answer (or any I could find on the net), so I tried it in practice and here is what I got: init does not cause layoutSubviews to be called (duh) addSubview: causes layoutSubviews to be called on the view being added, the view it’s being … Read more
Since the question I asked has been seen many times I will provide a detailed answer of it. Feel free to modify it if you want to add more correct content. First a recap on the question: frame, bounds and center and theirs relationships. Frame A view’s frame (CGRect) is the position of its rectangle … Read more