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Performance differences between debug and release builds
... becomes x = 3; This simple example is caught early by the compiler, but happens at JIT time when other optimizations make this possible.
Copy propagation. x = a; y = x; becomes y = a; This helps the register allocator make better decisions. It is a big deal in the x86 jitter because it has few ...
Split views.py in several files
...ews import view1 Python will look for view1 in
views.py, which is what happens in the first (original) case
views/__init__.py, which is what happens in the second case. Here, __init__.py is able to provide the view1 method because it imports it.
With this kind of solution, you might have no ne...
UICollectionView reloadData not functioning properly in iOS 7
I've been updating my apps to run on iOS 7 which is going smoothly for the most part. I have noticed in more than one app that the reloadData method of a UICollectionViewController isn't acting quite how it used to.
...
How do I set a ViewModel on a window in XAML using DataContext property?
...arating them is useful for when you want to write isolated test cases.
In App.xaml:
<Application
x:Class="BuildAssistantUI.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:Bui...
Was PreferenceFragment intentionally excluded from the compatibility package?
I'm looking to write preferences that can be applied to both 3.0 and pre-3.0 devices. Discovering that PreferenceActivity contains deprecated methods (although these are used in the accompanying sample code), I looked at PreferenceFragement and the compatibility package to solve my woes.
...
What does “Changes not staged for commit” mean
...nges. (navbar.component.html for example)
Run:
ng status
modified: src/app/components/shared/navbar/navbar.component.html
If you want to upload those changes for that file you must run:
git add src/app/components/shared/navbar/navbar.component.html
And then:
git commit src/app/components/s...
Xcode Command /usr/bin/codesign failed with exit code 1 : errSecInternalComponent
I am trying to add new provisioning profile to my Xcode, to test an app on the device. Here are the steps I followed:
16 An...
What does addChildViewController actually do?
...2011 videos and Mr. View Controller, Bruce D. Nilo, said this:
viewWillAppear:, viewDidAppear:, etc have nothing to do with addChildViewController:. All that addChildViewController: does is to say "This view controller is a child of that one" and it has nothing to do with view appearance. When t...
Git's famous “ERROR: Permission to .git denied to user”
...lse searching for this issue.
Here is what I did:
Open "Keychain Access.app" (You can find it in Spotlight or LaunchPad)
Select "All items" in Category
Search "git"
Delete every old & strange item
Try to Push again and it just WORKED
...
gdb fails with “Unable to find Mach task port for process-id” error
My app runs fine but gdb fails to debug it with the following error
12 Answers
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