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Programmatically Request Access to Contacts
Since updating to iOS 6 I've noticed that my code to add a contact to iPhone's address book no longer works. I believe this is a permission related problem, since Apple now requires user permission before accessing contacts (fixing this issue).
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Xcode iOS 8 Keyboard types not supported
... the laptop (external) keyboard was being detected. If you simply press:
iOS Simulator -> Hardware -> Keyboard -> Connect Hardware Keyboard
then the software keyboard will be displayed once again.
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How to hide UINavigationBar 1px bottom line
I have an app that sometimes needs its navigation bar to blend in with the content.
45 Answers
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Where are iOS simulator screenshots stored?
I have saved some screenshots in the iPhone Simulator running iOS 5, but I can't find them.
14 Answers
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Get UIScrollView to scroll to the top
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UPDATE FOR iOS 7
[self.scrollView setContentOffset:
CGPointMake(0, -self.scrollView.contentInset.top) animated:YES];
ORIGINAL
[self.scrollView setContentOffset:CGPointZero animated:YES];
or if you want to preserve the horizont...
How to run iPhone emulator WITHOUT starting Xcode?
On my old Mac running Snow Leopard, I could type "ios" into spotlight and it would start up the iPhone/iPad emulator by itself.
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How can I get the iOS 7 default blue color programmatically?
...g custom elements in my app and want to match the look and feel of the new iOS. iOS 7 introduced to us a very common lighter blue color, the default color or tint for several elements, including the system button, segmented control, etc. They've made it easy to select the color using IB, as seen her...
解决Scrapy警告:You do not have a working installation of the service_i...
...pi/service_identity）来安装。
我们可以直接通过命令行下载：
pip install service_identity-17.0.0-py2.py3-none-any.whl
如果上面的方法没能解决问题，很大可能是有些包的版本不一样导致的，这个时候我们可以用下面这行代码来强制...
解决Scrapy警告:You do not have a working installation of the service_i...
...pi/service_identity）来安装。
我们可以直接通过命令行下载：
pip install service_identity-17.0.0-py2.py3-none-any.whl
如果上面的方法没能解决问题，很大可能是有些包的版本不一样导致的，这个时候我们可以用下面这行代码来强制...
解决Scrapy警告:You do not have a working installation of the service_i...
...pi/service_identity）来安装。
我们可以直接通过命令行下载：
pip install service_identity-17.0.0-py2.py3-none-any.whl
如果上面的方法没能解决问题，很大可能是有些包的版本不一样导致的，这个时候我们可以用下面这行代码来强制...