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APT and Dpkg Quick Reference Sheet

一つのアプリでiPhone3G/iPhone4/iPad用のアイコンを入れる方法｜中村智武のCTO記

Wetware » How to popup a UIPickerView from the bottom of a UIScrollView in response to UITextField selection

Use UIActionSheet

iPhone Software Development: How to compile command line utility for iPhone using XCode gcc

$ /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.0  -arch armv6 -mthumb -isysroot  /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS2.2.sdk -o  hello hello.c

$ export  CODESIGN_ALLOCATE=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate
$ codesign -f -s "iPhone Developer" hello

How to enable Syslog on iPhone fw 2.x for debugging | fosk.it! 2.0

1. edit /System/Library/LaunchDaemons/com.apple.syslogd.plist
2. find the /usr/…/syslogd line
3. below that add:
   <string>-bsd_out</string>
   <string>1</string>
4. Type: echo ‘*.* /var/log/syslog’ > /etc/syslog.conf (open /etc/syslog.conf and make sure that you have *.* /var/log/syslog without any extra characters)
5. Type: launchctl unload /System/Library/LaunchDaemons/com.apple.syslogd.plist
6. Type: launchctl load /System/Library/LaunchDaemons/com.apple.syslogd.plist

[2011-12-31] on iOS 5, launchctl load will fail with “checkin failed”.
But rebooting lets syslogd up and running.
In addition, launchctl problem could be fixed by installing Corona 1.0-3 and reboot, thanks Saurik.

Aincc's Tips: execute other App in my App

aincctip: (translated from Krean by google translate)

execute other App in my App

By specifying a particular app my apps to run is the following:
A: my App.
B: other App.

To run B from A, B will need to define a specific URL Scheme.
How to specify in the URL Scheme B are as follows:

info.plist entries with the following content is added. (Added to the source view)

<key> CFBundleURLTypes </ key>
<array>
    <dict>
     <key> CFBundleURLName </ key>
    <string> com.yourcompany.myapp (package) </ string>
<key> CFBundleURLSchemes </ key>
<array>
    <string> testsample (schema name) </ string>
</ array>
</ dict>
</ array>

When you do this, B is defined by the schema of the testsample.

In this state, as follows: B, A can be accessed.

BOOL canOpen = [[UIApplication sharedApplication] canOpenURL:
[NSURL URLWithString: @ “testsample ://”]];
if (canOpen) {
/ / App to run.
[[UIApplication sharedApplication] openURL:
[NSURL URLWithString: @ “testsample ://”]];
}
else {
/ / Market Connection.
[[UIApplication sharedApplication] openURL:
[NSURL URLWithString: @ “http://market address”]];
}

For more information about custom apps, and the basic app there is a defined schema, respectively.

For more information see the link below if gory seems to be.
http://iphonedevelopertips.com/cocoa/launching-other-apps-within-an-iphone-application.html
http://iphonedevelopertips.com/cocoa/launching-your-own-application-via-a-custom-url-scheme.html