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MD5 algorithm in Objective-C
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md5 is available on the iPhone and can be added as an addition for ie NSString and NSData like below.
MyAdditions.h
@interface NSString (MyAdditions)
- (NSString *)md5;
@end
@interface NSData (MyAdditions)
- (NSString*)md5;
@end
MyAdditions.m
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转：postfix安装Q&A - 更多技术 - 清泛网 - 专注C/C++及内核技术
...nied
A:
检查 authdaemond的socket所在目录及其父目录的属性是否对smtpd可读。如果不可读则出现这个问题（permission的问题）。chmod +x /var/spool/authdaemon
QUOTE:
Q：
Jan 13 13:18:27 mail postfix/virtual[3787]: warning: maildir access proble...
libxml/tree.h no such file or directory
...ction). On the Mac,
you'll find it at /usr/lib/libxml2.dylib and for the iPhone, you'll
want the
/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.0.sdk/usr/lib/libxml2.dylib
version.
Since libxml2 is a .dylib (not a nice friendly .framework) we still
have one more thing...
Rotating videos with FFmpeg
...n trying to figure out how to rotate videos with FFmpeg. I am working with iPhone videos taken in portrait mode. I know how to determine the current degrees of rotation using MediaInfo (excellent library, btw) but I'm stuck on FFmpeg now.
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What's a quick way to test to see a file exists?
I want to quickly check to see if a file exists in my iPhone app's Documents directory (or any path for that matter). I can enumerate through the directory's files, or I can try to open a specific file. What's the fastest way? I just need to know if the file is there or if it does not exist.
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Copy text to clipboard with iOS
What is the best way to copy text to the iPhone's clipboard in your application?
2 Answers
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iOS 5 fixed positioning and virtual keyboard
...is works pretty well. I only call this for iOS devices: var isIOS = /(iPad|iPhone|iPod)/g.test(navigator.userAgent);
– Redtopia
Oct 15 '13 at 19:21
8
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CALayers didn't get resized on its UIView's bounds change. Why?
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Since CALayer on the iPhone does not support layout managers, I think you have to make your view's main layer a custom CALayer subclass in which you override layoutSublayers to set the frames of all sublayers. You must also override your view's +...
Open Facebook page from Android app?
...ile in the official Facebook app (if the app is installed, of course). For iPhone, there exists the fb:// URL scheme, but trying the same thing on my Android device throws an ActivityNotFoundException .
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Codesign error: Provisioning profile cannot be found after deleting expired profile
...ou have an old project and first created it with an older version of xcode/iphone sdk. What you need to do is open up the project file in a text editor, search for the 'long string' from your error and manually erase that line. In fact, you should just go ahead and erase any line that points to an...