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iPhone Data Usage Tracking/Monitoring
I've searched over this topic but found very few details which were helpful. With these details I've tried to cook some code as follows.
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Build Error - missing required architecture i386 in file
I'm getting this error when building my iPhone application:
16 Answers
16
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How to create a colored 1x1 UIImage on the iPhone dynamically?
I would like to create a 1x1 UIImage dynamically based on a UIColor.
6 Answers
6
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Media Queries: How to target desktop, tablet, and mobile?
...the best breakpoints:
@media (min-width:320px) { /* smartphones, portrait iPhone, portrait 480x320 phones (Android) */ }
@media (min-width:480px) { /* smartphones, Android phones, landscape iPhone */ }
@media (min-width:600px) { /* portrait tablets, portrait iPad, e-readers (Nook/Kindle), landsca...
href=“tel:” and mobile numbers
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The BlackBerry browser and Safari for iOS (iPhone/iPod/iPad) automatically detect phone numbers and email addresses and convert them to links. If you don’t want this feature, you should use the following meta tags.
For Safari:
<meta name="format-detection" cont...
what exactly is device pixel ratio?
...is the ratio between physical pixels and logical pixels. For instance, the iPhone 4 and iPhone 4S report a device pixel ratio of 2, because the physical linear resolution is double the logical linear resolution.
Physical resolution: 960 x 640
Logical resolution: 480 x 320
The formula is:
Wher...
How to mark-up phone numbers?
...ugh RFC 3966 in 2004) and continues to be improved. Supporting tel: on the iPhone was not an arbitrary decision.
callto:, while supported by Skype, is not a standard and should be avoided unless specifically targeting Skype users.
Me? I'd just start including properly-formed tel: URIs on your page...
Detect backspace in empty UITextField
...here any way to detect when the Backspace / Delete key is pressed in the iPhone keyboard on a UITextField that is empty? I want to know when Backspace is pressed only if the UITextField is empty.
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Dashed line border around UIView
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it's not a perfect way when talking about iPhone6 plus. The dotted line could become fuzzy.
– LiangWang
Jan 12 '15 at 14:31
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NSInvalidUnarchiveOperationException: Could not instantiate class named NSLayoutConstraint
I am very new to this. I followed Apple's tutorial step by step for the iPhone project "HelloWorld". I ran it in the iPhone 5.0 simulator and it crashed:
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