Change line (改行)for UILabel in iOS6
Ctrl + r (bash history)
Reuse matched parts for regular expressions in Emacs

M-x replace-regexp RET os.\([a-z]+\)  RET os.linux.\1


Extends ImageButton
Offset a view from center in Android
Use carriage return when replacing words in Emacs

M-x replace-string (RET) 置換対象文字列 (RET) 置換文字列 C-q C-j (RET)

Opening Google / Apple Map from App
Set different text for default action (Twitter, Facebook) of UIActivityViewController
Handle completion of customized UIActivityViewController
Show color icon of LINE and other apps in UIActivityViewController