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Test iOS app on device without apple developer program or jailbreak
...vice. Then it worked. Also remember to allow installing such apps on your iPhone by going to Settings -> General -> Profile You will see your dev account. Tap it. You should see the app listed there. Tap on it. Tap "Trust (name here)"
– mutp
Sep 19 '15 a...
What is Objective C++? [closed]
...lasses).
Yes, you can use this language in Xcode to develop for Mac OS X, iPhone/iPodTouch, iPad. It works very well.
You don't have to do anything weird in your project to use Objective-C++. Just name your Objective-C files with the extension .mm (instead of .m) and you are good to go.
It is my ...
How big should a UIBarButtonItem image be?
...lder devices like iPad 2 / Mini, 50px square for most current devices like iPhone 8 or iPad, and 75px square for Retina HD devices (the iPhone 6/7/8 Plus, or iPhone X). Asset catalogs will help immensely in keeping the different asset sizes organized (and Xcode can even generate them from vector sou...
大数据：用数据指导APP运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
...系的。很简单的一个道理：
两个活动，一个活动送100台iPhone6，一个活动送1台iPhone6，哪个效果会好？
做运营的同学，请一定要认真的去评估每一个运营动作背后的成本。
而所谓“收益”，并不等价于“收入”，获得金钱是收...
Using NSPredicate to filter an NSArray based on NSDictionary keys
...
Does NSPredicate work on the iPhone? It works great on the sim but running it on the iPhone gives an error that the NSPredicate class could not be found.
– lostInTransit
Sep 25 '09 at 4:28
...
iOS 7 style Blur view
...o reduce the number of pixels the Gaussian blur has to operate over, so an iPhone 4S can blur the entire screen in roughly 30 ms using this operation.
You still have the challenge of how to pull content into this blur from views behind this one in a performant manner.
...
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...在有可能發生這種錯誤的函式呼叫前加上WSAIsBlocking()判斷是否有阻攔式函式正在執行。如果有的話，我們可能需要將正在進行的阻攔式函式取消掉，或是將目前想要做的事取消掉。
WSAEALREADY (10037) 函式作用已完成
這個錯誤...
为什么说自媒体到了最危险的时期？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...，即使是大V也逃不过这个魔咒。何况是一般自媒体。
而是否有持续性内容的产出会直接影响到自媒体的人气、发展和收入。目前科技自媒体人由于生存的必要性，大量的时间是花在约稿和跑会等，时间和精力被大大分散，优质...
What is Data URI support like in major email client software?
... clients do show data URIs:
Android 2.3
Android 4.0
BlackBerry 5 OS
iPad
iPhone 3GS
iPhone 4S
iPhone 5
None of the webmail clients showed data URIs.
These desktop clients don't:
Lotus Notes 6.5
Lotus Notes 7
Lotus Notes 8.5
Outlook 2000
Outlook 2002/XP
Outlook 2007
Outlook 2010
Outlook 2011
O...
Rounded UIView using CALayers - only some corners - How?
...
I used the answer over at How do I create a round cornered UILabel on the iPhone? and the code from How is a rounded rect view with transparency done on iphone? to make this code.
Then I realized I'd answered the wrong question (gave a rounded UILabel instead of UIImage) so I used this code to ch...