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SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...one. SharedPreferences keeps listeners in a WeakHashMap. This means that you cannot use an anonymous inner class as a listener, as it will become the target of garbage collection as soon as you leave the current scope. It will work at first, but eventually, will get garbage collected, removed from t...
How to URL encode a string in Ruby
...\x78\x9a\xbc\xde\xf1\x23\x45\x67\x89\xab\xcd\xef\x12\x34\x56\x78\x9a".force_encoding('ASCII-8BIT')
puts CGI.escape str
=> "%124Vx%9A%BC%DE%F1%23Eg%89%AB%CD%EF%124Vx%9A"
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ToList()— does it create a new list?
...tatic void RunChangeList()
{
var objs = Enumerable.Range(0, 10).Select(_ => new MyObject() { SimpleInt = 0 });
var whatInt = ChangeToList(objs); // whatInt gets 0
}
public static int ChangeToList(IEnumerable<MyObject> objects)
{
var objectList = objects.ToList();
objectLi...
Change Default Scrolling Behavior of UITableView Section Header
I have a UITableView with two sections. It is a simple table view. I am using viewForHeaderInSection to create custom views for these headers. So far, so good.
...
CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
...没装MySQL，现在只把步骤贴出来，就不做过多的讲解了
#useradd mysql
#tar zxvf mysql-5.0.40.tar.gz
#cd mysql-5.0.40
#./configure --prefix=/usr/local/mysql
#make && make install
#/usr/local/mysql/bin/mysql_install_db --user=mysql ...
Unable to load config info from /usr/local/ssl/openssl.cnf on Windows
...penSSL I was required to create a new environment variable:
Name: OPENSSL_CONF
Value: C:\Program Files\OpenSSL\openssl.cnf
In powershell:
$env:OPENSSL_CONF = "${env:ProgramFiles}\OpenSSL\openssl.cnf"
This value differs from previous installation versions (as seen in a previous edit of this po...
ValueError: invalid literal for int() with base 10: ''
...ame)
for line in h:
if line.strip():
[int(next(h).strip()) for _ in range(4)] # list of integers
This way it processes 5 lines at the time. Use h.next() instead of next(h) prior to Python 2.6.
The reason you had ValueError is because int cannot convert an empty string to the integ...
How to list only the file names that changed between two commits?
I have a bunch of commits in the repo. I want to see a list of files changed between two commits - from SHA1 to SHA2.
13 An...
Switching the order of block elements with CSS [duplicate]
...new implementation: developer.mozilla.org/en-US/docs/Web/Guide/CSS/Flexible_boxes
– Daniel Ristic
Sep 11 '13 at 16:13
...
Displaying files (e.g. images) stored in Google Drive on a website
...
Here's the simple view link:
https://drive.google.com/uc?id=FILE_ID
e.g. https://drive.google.com/uc?id=0B9o1MNFt5ld1N3k1cm9tVnZxQjg
You can do the same for other file types, e.g. MP3, PDF, etc.
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