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How do I save a UIImage to a file?
...e you can create subfolders in the documents folder of your app. You use NSFileManager to do that.
You use UIImagePNGRepresentation to convert your image to NSData and save that to disk.
// Create path.
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES...
Why do we need a fieldset tag?
...;Colour</legend>
<input type="radio" name="colour" value="red" id="colour_red">
<label for="colour_red">Red</label>
<input type="radio" name="colour" value="green" id="colour_green">
<label for="colour_green">Green</label>
<input type="radio"...
Run a single migration file
...
You can just run the code directly out of the ruby file:
rails console
>> require "db/migrate/20090408054532_add_foos.rb"
>> AddFoos.up
Note: newer versions of rails may require AddFoos.new.up rather than AddFoos.up.
An alternative way (without IRB) which reli...
Is there a builtin identity function in python?
...is none, a feature was asked in issue 1673203 And from Raymond Hettinger said there won't be:
Better to let people write their own trivial pass-throughs
and think about the signature and time costs.
So a better way to do it is actually (a lambda avoids naming the function):
_ = lambda *args...
Set the value of a variable with the result of a command in a Windows batch file
...
To do what Jesse describes, from a Windows batch file you will need to write:
for /f "delims=" %%a in ('ver') do @set foobar=%%a
But, I instead suggest using Cygwin on your Windows system if you are used to Unix-type scripting.
...
Jar Mismatch Found 2 versions of android-support-v4.jar in the dependency list
...ons of an Android app (free/paid). I have an Android Library that contains files common to both. I created a new Android project and am trying to use the Library but get the error below:
...
bool to int conversion
...ment said, C99 has _Bool type. bool is a macro defined in stdbool.h header file. true and false are also macro defined in stdbool.h.
§7.16 from C99 says,
The macro bool expands to _Bool.
[..] true which expands to the integer constant 1, false
which expands to the integer constant 0,[.....
Why is git push gerrit HEAD:refs/for/master used instead of git push origin master
...pecify the git push command you could alternatively modify your git config file:
[remote "gerrit"]
url = https://your.gerrit.repo:44444/repo
fetch = +refs/heads/master:refs/remotes/origin/master
push = refs/heads/master:refs/for/master
Now you can simply:
git fetch gerrit
git push ge...
How do you see the entire command history in interactive Python?
...
If you want to write the history to a file:
import readline
readline.write_history_file('python_history.txt')
The help function gives:
Help on built-in function write_history_file in module readline:
write_history_file(...)
write_history_file([filename])...
Setting property 'source' to 'org.eclipse.jst.jee.server:JSFTut' did not find a matching property
...
I've noticed that if you have the server.xml file open it does not add the context back in. I just stopped the server and closed the server.xml file then re-added the project. THought I would mentioned it in case anyone else runs into the same problem.
...