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Is there any way to check if iOS app is in background?
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App delegate gets callbacks indicating state transitions. You can track it based on that.
Also the applicationState property in UIApplication returns the current state.
[[UIApplication sharedApplication] applicationState]
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Reducing the space between sections of the UITableView
Is there a way to reduce the space between two sections of a UITableView? There are about 15 pixels between every single section I have. I did already try to return 0 for -tableView:heightForFooterInSection: and -tableView:heightForHeaderInSection: but that doesn't change anything.
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What is “lifting” in Scala?
...did some research, and it seems that lifting has something to do with functional values or something like that, but I was not able to find a text that explains what lifting actually is about in a beginner friendly way.
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How do I serialize an object and save it to a file in Android?
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Saving (w/o exception handling code):
FileOutputStream fos = context.openFileOutput(fileName, Context.MODE_PRIVATE);
ObjectOutputStream os = new ObjectOutputStream(fos);
os.writeObject(this);
os.close();
fos.close();
Loading (w/o exception ...
iOS UI系列 (二) ：使用多个StoryBoard - 更多技术 - 清泛网 - 专注C/C++及内核技术
iOS UI系列 (二) ：使用多个StoryBoard为什么要使用多个StoryBoardStoryBoard 给项目带了很大的方便，在一个视图里可以看到整个项目页面之间的关系，但是如果项目所有的页面都放...为什么要使用多个StoryBoard
StoryBoard 给项目带了很大...
支付宝团队 | 移动客户端实战教程(iOS和Android) - 更多技术 - 清泛网 - 专...
支付宝团队 | 移动客户端实战教程(iOS和Android)给大家推荐一个非常好的PPT，是github在线的，是支付宝团队内部分享技术用的PPT，适合Web端和移动端的同学入门客户端开发，是我见过的...
给大家推荐一个非常好的PPT，是github在线...
iOS app, programmatically get build version
Is there a way to programmatically get the build version of my app? I need to be able to detect when the user has updated the app through the AppStore, in order to execute some code for adjustments
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iPhone UIButton - image position
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My solution to this is quite simple
[button sizeToFit];
button.titleEdgeInsets = UIEdgeInsetsMake(0, -button.imageView.frame.size.width, 0, button.imageView.frame.size.width);
button.imageEdgeInsets = UIEdgeInsetsMake(0, button.titl...
How to calculate time in hours between two dates in iOS
...apsed in hours between two times (possibly occurring on different days) in iOS?
5 Answers
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How to develop or migrate apps for iPhone 5 screen resolution?
The new iPhone 5 display has a new aspect ratio and a new resolution (640 x 1136 pixels).
30 Answers
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