大约有 40,000 项符合查询结果（耗时：0.0580秒） [XML]
How to make ThreadPoolExecutor's submit() method block if it is saturated?
...e = new Semaphore(bound);
}
public void submitTask(final Runnable command)
throws InterruptedException, RejectedExecutionException {
semaphore.acquire();
try {
exec.execute(new Runnable() {
public void run() {
try {...
How do I update the notification text for a foreground service in Android?
...n would work, though I have not tried this scenario.
Update: Based on the comments, you should use NotifcationManager to update the notification and your service continues to stay in the foreground mode. Take a look at the answer below.
...
Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
...nterested in a link if any just to explain the "why" like the OP and other commenters are asking. Your diagram makes sense except Array[4] is nil. Array[3] is :jelly. I would expect Array[4,N] to be nil but it's [] like the OP says. If it's a place, it's a pretty useless place because Array[4, -...
Set font-weight using Bootstrap classes
...
add a comment
|
96
...
How to center text vertically with a large font-awesome icon?
...
|
show 1 more comment
53
...
How to check for an active Internet connection on iOS or macOS?
...p your app.
Swift
1) Install via CocoaPods or Carthage: https://github.com/ashleymills/Reachability.swift
2) Test reachability via closures
let reachability = Reachability()!
reachability.whenReachable = { reachability in
if reachability.connection == .wifi {
print("Reachable via ...
How to use http.client in Node.js if there is basic authorization
...tains the authentication type Basic in this case and the username:password combination which gets encoded in Base64:
var username = 'Test';
var password = '123';
var auth = 'Basic ' + Buffer.from(username + ':' + password).toString('base64');
// new Buffer() is deprecated from v6
// auth is: 'Basi...
How do you debug a regex? [closed]
Regular expressions can become quite complex. The lack of white space makes them difficult to read. I can't step though a regular expression with a debugger. So how do experts debug complex regular expressions?
...
IllegalArgumentException or NullPointerException for a null parameter? [closed]
...rguments that NullPointerException is the correct exception: stackoverflow.com/a/8160/372926 ; stackoverflow.com/a/8196334/372926 ; and stackoverflow.com/a/6358/372926.
– SamStephens
Feb 6 '14 at 23:09
...
How to detect Safari, Chrome, IE, Firefox and Opera browser?
...rowser-specific characteristics:
Internet Explorer: JScript's Conditional compilation (up until IE9) and document.documentMode.
Edge: In Trident and Edge browsers, Microsoft's implementation exposes the StyleMedia constructor. Excluding Trident leaves us with Edge.
Edge (based on chromium): The use...