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What do the plus and minus signs mean in Objective-C next to a method?
... the 'Methods and Messaging' section:
https://developer.apple.com/library/mac/referencelibrary/GettingStarted/RoadMapOSX/books/WriteObjective-CCode/WriteObjective-CCode/WriteObjective-CCode.html
In brief:
+ means 'class method'
(method can be called without an instance of the class being instant...
What is a message pump?
...ow the Windows system (and other window based systems - X Window, original Mac OS....) implement asynchronous user interfaces using events via a message system.
Behind the scenes for each application there is a messaging system where each window can send events to other windows or event listeners -...
What is the AppDelegate for and how do I know when to use it?
... del = [AppDelegate sharedAppDelegate]; (see developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/…) what does that mean? i can see examples of using it but i don't really understand the theory behind it (see this example:developer.apple.com/library/ios/#samplecode/…)
...
Building and running app via Gradle and Android Studio is slower than via Eclipse
...
/home/<username>/.gradle/ (Linux)
/Users/<username>/.gradle/ (Mac)
C:\Users\<username>\.gradle (Windows)
Append:
# IDE (e.g. Android Studio) users:
# Settings specified in this file will override any Gradle settings
# configured through the IDE.
# For more details on how to ...
Detect iPad Mini in HTML5
...script. I know you can get a user's IP, but is it possible to get a user's mac address? Are those ranges different between iPad2's and iPad mini's?
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How does the new automatic reference counting mechanism work?
... inexpensive (as discussed here). I know I'm replacing all of my existing Mac GC code with ARC implementations.
As to whether this could be extended to other languages, it seems geared around the reference counting system in Objective-C. It might be difficult to apply this to Java or other langua...
Python naming conventions for modules
...m on Unix,
but it may be a problem when the code is transported to older Mac or
Windows versions, or DOS.
When an extension module written in C or C++ has an accompanying Python
module that provides a higher level (e.g. more object oriented)
interface, the C/C++ module has a leading und...
window.close and self.close do not close the window in Chrome
...fari 7-8 and ALSO Firefox 29-35. I tested using version 8.1 of Windows and Mac OS X 10.6, 10.9 & 10.10 if that is different.
Self-Closing Window Code (on the page that closes itself)
The complete code to be used on the user-opened window that can close itself:
window_to_close.htm
JavaScri...
How to read the Stock CPU Usage data
...average"
showing CPU load over 1 minute, 5 minutes and 15 minutes
Linux, Mac, and other Unix-like systems display “load average” numbers. These numbers tell you how busy your system’s CPU, disk, and other resources are. They’re not self-explanatory at first, but it’s easy to become famil...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...= new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" //背景颜色}); App Inventor 2 中文网 © 2023 - document.write(new Date().getFullYear()); 跟着...