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How do I save a UIImage to a file?
If I have a UIImage from an imagePicker, how can I save it to a subfolder in the documents directory?
9 Answers
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How to get arguments with flags in Bash
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This example uses Bash's built-in getopts command and is from the Google Shell Style Guide:
a_flag=''
b_flag=''
files=''
verbose='false'
print_usage() {
printf "Usage: ..."
}
while getopts 'abf:v' flag; do
case "${flag}" in
a) a_flag='true' ;;
b) b_flag='true' ;;
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jQuery - hashchange event
... true for 'onhashchange' in window, even though the event isn't supported -from jQuery Mobile
– Vikas
May 19 '11 at 6:16
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C compiler for Windows? [closed]
...iler but would like a Windows solution. Any ideas? I've looked at Dev-C++ from Bloodshed but looking for more options.
22...
What is the advantage of GCC's __builtin_expect in if else statements?
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Imagine the assembly code that would be generated from:
if (__builtin_expect(x, 0)) {
foo();
...
} else {
bar();
...
}
I guess it should be something like:
cmp $x, 0
jne _foo
_bar:
call bar
...
jmp after_if
_foo:
call foo
...
after_i...
Using a ListAdapter to fill a LinearLayout inside a ScrollView layout
... easier to code (thus potentially less moving parts and bugs), but suffers from performance problems, so if you have like 50 views or more, I advise to use the header approach.
Example. Basically the activity (or fragment) layout transforms to something like this (no ScrollView needed anymore):
&l...
@RequestBody and @ResponseBody annotations in Spring
...n> setup), Spring would convert the incoming JSON to a UserStats object from the post body (because you added the @RequestBody annotation) and it would serialize the returned object to JSON (because you added the @ResponseBody annotation). So the Browser / Client would see this JSON result:
{ "d...
Test method is inconclusive: Test wasn't run. Error?
I have a test class and below I have posted a sample test from the test class
49 Answers
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Accessing an array out of bounds gives no error, why?
...ecking, there are a couple aspects to the answer:
An array is a leftover from C. C arrays are about as primitive as you can get. Just a sequence of elements with contiguous addresses. There is no bounds checking because it is simply exposing raw memory. Implementing a robust bounds-checking mechan...
Simulate airplane mode in iPhone Simulator
...like an iPhone. So you need a way, at the system layer, to restrict an app from talking to the network. Unix doesn't provide that; it would almost certainly need kernel support to get it. You could do it more easily for NSURLConnection and its kin, but it could be more confusing if some calls work a...