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Android: When should I use a Handler() and when should I use a Thread?
...;
Thread t = new Thread() {
@Override
public void run(){
doSomeWork();
if(succeed){
//we can't update the UI from here so we'll signal our handler and it will do it for us.
h.sendEmptyMessage(0);
}else{
h.sendEmptyMessage(1);
...
Delete/Reset all entries in Core Data?
...d safe, and can certainly be done programatically at runtime.
Update for iOS5+
With the introduction of external binary storage (allowsExternalBinaryDataStorage or Store in External Record File) in iOS 5 and OS X 10.7, simply deleting files pointed by storeURLs is not enough. You'll leave the exte...
NSNotificationCenter addObserver in Swift
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Swift 4.0 & Xcode 9.0+:
Send(Post) Notification:
NotificationCenter.default.post(name: Notification.Name("NotificationIdentifier"), object: nil)
OR
NotificationCenter.default.post(name: Notification.Name("NotificationIdentifier"), object: nil, userInf...
Can I install Python 3.x and 2.x on the same Windows computer?
I'm running Windows and the shell/OS automatically runs Python based on the registry settings when you run a program on the command line. Will this break if I install a 2.x and 3.x version of Python on the same machine?
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How do I create my own URL protocol? (e.g. so://…) [closed]
...a.org/assignments/uri-schemes/uri-schemes.xhtml,
http://msdn.microsoft.com/en-us/library/aa767914(v=vs.85).aspx
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How to determine if a string is a number with C++?
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The most efficient way would be just to iterate over the string until you find a non-digit character. If there are any non-digit characters, you can consider the string not a number.
bool is_number(const std::string& s)
{
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Java: Date from unix timestamp
...legacy and java.time classes, it is best to stick with java.time whenever possible.
– Basil Bourque
Feb 7 '17 at 23:32
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Remove vertical padding from horizontal ProgressBar
... (like in this answer is better solution and not depend on phone size/type/os version
– koceeng
Feb 27 '17 at 10:52
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How do I download a file over HTTP using Python?
...www.example.com/') as f:
html = f.read().decode('utf-8')
This is the most basic way to use the library, minus any error handling. You can also do more complex stuff such as changing headers.
On Python 2, the method is in urllib2:
import urllib2
response = urllib2.urlopen('http://www.example.com...
How to make button look like a link?
...portant;
/*optional*/
font-family: arial, sans-serif;
/*input has OS specific font-family*/
color: #069;
text-decoration: underline;
cursor: pointer;
}
<button> your button that looks like a link</button>
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