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How should I validate an e-mail address?
...
Another option is the built in Patterns starting with API Level 8:
public final static boolean isValidEmail(CharSequence target) {
if (TextUtils.isEmpty(target)) {
return false;
} else {
return android.util.Patterns.EMAIL_ADDRESS.matcher(target).matches();
}
}
P...
How do I connect to a specific Wi-Fi network in Android programmatically?
...
In API level 29, WifiManager.enableNetwork() method is deprecated. As per Android API documentation(check here):
See WifiNetworkSpecifier.Builder#build() for new mechanism to trigger connection to a Wi-Fi network.
See a...
Java 7 language features with Android
...d be enabled automatically without any patches. Try-with-resource requires API Level 19+, and NIO 2.0 stuff are missing.
If you can't use Java 7 features, see @Nuno's answer on how to edit your build.gradle.
The following is for historical interest only.
A small part of Java 7 can certainly be...
Best architectural approaches for building iOS networking applications (REST clients)
...es or contains complex UI logic.
ARCHITECTURE
At first I create a general APIClient class, which is a subclass of AFHTTPSessionManager. This is a workhorse of all networking in the application: all service classes delegate actual REST requests to it. It contains all the customizations of HTTP clien...
Difference between / and /* in servlet mapping url pattern
...llowing controller will face a 404 error when you request it using /perfix/api/feature/doSomething
@Controller()
@RequestMapping("/perfix/api/feature")
public class MyController {
@RequestMapping(value = "/doSomething", method = RequestMethod.GET)
@ResponseBody
public String doSomethin...
Combining node.js and Python
...ormance may be decreased a little, however Thoonk provides a really simple API that simplifies having to manually deal with a socket. Thoonk also helps make it really trivial to implement a distributed computing model that allows you to scale your python workers to increase performance, since you ju...
HTTP requests and JSON parsing in Python
I want to dynamically query Google Maps through the Google Directions API. As an example, this request calculates the route from Chicago, IL to Los Angeles, CA via two waypoints in Joplin, MO and Oklahoma City, OK:
...
Express.js req.body undefined
...ion (req, res) {
res.send('welcome, ' + req.body.username)
})
// POST /api/users gets JSON bodies
app.post('/api/users', jsonParser, function (req, res) {
// create user in req.body
})
See here for further info
original follows
You must make sure that you define all configurations BEFORE defi...
How to check if an activity is the last one in the activity stack for an application?
...
UPDATE (Jul 2015):
Since getRunningTasks() get deprecated, from API 21 it's better to follow raukodraug answer or Ed Burnette one (I would prefer second one).
There's possibility to check current tasks and their stack using ActivityManager.
So, to determine if an activity is the last o...
Explain Python entry points?
...},
As the example shows, entry points are grouped; there's corresponding API to look up all entry points belonging to a group (example below).
Upon a package installation (ie. running 'python setup.py install'), the above declaration is parsed by setuptools. It then writes the parsed information ...