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UIPopovercontroller dealloc reached while popover is still visible
... Here I got a simple code that should present a UIImagePickerController within a UIPopoverController :
3 Answers
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How to check if a variable is an integer in JavaScript?
...o I check if a variable is an integer in JavaScript, and throw an alert if it isn't? I tried this, but it doesn't work:
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How to get an enum which is created in attrs.xml in code
I created a custom View (find it here ) with an declare-styleable attribute of type enum. In xml I can now choose one of the enum entries for my custom attribute. Now I want to create an method to set this value programmatically, but I can not access the enum.
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How to change progress bar's progress color in Android
...an horizontal progress bar in my Android application, and I want to change its progress color (which is Yellow by default). How can I do it using code (not XML)?
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How to convert a string to lower case in Bash?
..." | awk '{print tolower($0)}'
hi all
Non-POSIX
You may run into portability issues with the following examples:
Bash 4.0
$ echo "${a,,}"
hi all
sed
$ echo "$a" | sed -e 's/\(.*\)/\L\1/'
hi all
# this also works:
$ sed -e 's/\(.*\)/\L\1/' <<< "$a"
hi all
Perl
$ echo "$a" | perl -n...
Why do we check up to the square root of a prime number to determine if it is prime?
To test whether a number is prime or not, why do we have to test whether it is divisible only up to the square root of that number?
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How to check if a file contains a specific string using Bash
... a file contains a specific string or not in bash. I used this script, but it doesn't work:
11 Answers
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File changed listener in Java
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At the low level the only way to model this utility is to have a thread polling on a directory and keeping a watch on the attributes of the file. But you can use patterns to develop a adapter for such a utility.
For example j2ee application servers like Tomcat and others ...
Renew Provisioning Profile
...r device (in the left list)
Click on "Add device to provisioning portal"
Wait until it's done !
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Displaying better error message than “No JSON object could be decoded”
...dule is vague. For instance, for the case of having a comma after the last item in a list:
json.loads('[1,2,]')
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ValueError: No JSON object could be decoded
which is not very descriptive. The same operation with simplejson:
simplejson.loads('[1,2,]')
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simplejson.decoder.JSONDecodeError: E...