Xcode: Delete row shortcut

Edit the plist file

It's at /Applications/Xcode.app/Contents/Frameworks/IDEKit.framework/Resources/IDETextKeyBindingSet.plist

Note that:

• the linked answer suggests using XCode for this, but I find that this crashes XCode
• this path is for Lion - it may vary for other OS versions
• you may have to sudo or change permissions to edit this file
• close XCode before editing

Add a new <dict> element

Add this text just ABOVE the close of the <dict> at the bottom of this file

    <key>Custom</key>    <dict>      <key>Delete Current Line In One Hit</key>      <string>moveToEndOfLine:, deleteToBeginningOfLine:, deleteToEndOfParagraph:</string>     </dict>

Note that:

• This is inside the existing <dict> so there is a </dict></plist> after this
• This associates the named action "Delete Current Line In One Hit" to the three key actions in the string. I played around with different options here to get the right combination. For instance, if you try moveToBeginningOfLine, deleteToEndOfLine instead of vice versa, then using it on empty lines will delete the line and the entire next line. Which is unpleasant

Save this and open XCode

Add a new key binding in XCode

See the screenshots for this in the linked answer or do this:

1. Open XCode Preferences
2. Select Key Bindings
3. Click on All
4. In the SEarch box type "Delete" and search for "Delete Current Line in One Hit"
5. Add your new binding.

This should do it but for one caveat. I could never get XCode to save the new binding. The same problem is described here though my workaround had a slight variation:

1. Create a duplicate of the Default bindings (hit the + button at the bottom left of the Bindings window and create a duplicate)
2. Set the new binding in the duplicate
3. Close the preference dialog (that's the variation!)
4. Open preferences again and make a new duplicate of the old duplicate and delete the old duplicate.

What a rigmarole, eh? But it works. Now I have Ctrl+D mapped to delete the entire current line in XCode 4.3 on Lion.

也可以参照 http://www.cocoachina.com/industry/20140613/8816.html