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Core Data: Quickest way to delete all instances of an entity
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iOS 9 and later:
iOS 9 added a new class called NSBatchDeleteRequest that allows you to easily delete objects matching a predicate without having to load them all in to memory. Here's how you'd use it:
Swift 5
let fetchReq...
ping response “Request timed out.” vs “Destination Host unreachable”
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What does it mean if you get a mix of both replies?
– user2924019
Nov 16 '16 at 15:56
7
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How can I interrupt a ServerSocket accept() method?
...rverSocket object, then starts a new client thread and adds it to a Collection when a new client is accepted.
9 Answers
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What are Unwind segues for and how do you use them?
iOS 6 and Xcode 4.5 has a new feature referred to as "Unwind Segue":
6 Answers
6
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Why am I getting error for apple-touch-icon-precomposed.png
...from the root directory of the site. I first thought it was a misconfiguration of the mobile theme and plugin, but found out later that Apple devices make those requests if the device owner adds the site to it.
Source: Why Webmasters Should Analyze Their 404 Error Log (Mar 2012; by Martin Brinkman...
UITableViewCell subview disappears when cell is selected
...say, 10 colors (depends on the product). The user can also select other options (like hard drive capacity, ...).
20 Answers...
UIButton custom font vertical alignment
...ustom installed font not displayed correctly in UILabel. There was no solution given.
Here's the solution that worked for my custom font which had the same issue in UILabel, UIButton and such. The problem with the font turned out to be the fact that its ascender property was too small compared to t...
Adding devices to team provisioning profile
I need to add a device to my team provisioning profile, however I do not physically have the device so I can't hook it up to my computer so Xcode can't add the UDID to my devices and to the team provisioning profile. Is there a way to add it manually to the team provisioning profile, I can't figure...
unable to print object ('po') in xcode6 beta 6 osx swift project: (Error in auto-import: failed to g
...nswer.
So, here it is. In our case, we had an Objective-C project using a mix of Swift and Objective-C frameworks. This fix might apply in slightly different contexts, just try it.
There happens to be a bug with the way the compiling flags get aggregated from the frameworks and the project, and th...
Increase modal size for Twitter Bootstrap
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Mixing up two methods for width and height and you have a good hack:
CSS:
#myModal .modal-body {max-height: 800px;}
JQuery:
$('myModal').modal('toggle').css({'width': '800px','margin-left': function () {return -($(this)....