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Detect if the app was launched/opened from a push notification
...it's unchecked. I've documented the difference in this post: stackoverflow.com/questions/32061897/…
– Bao Lei
Aug 18 '15 at 18:18
2
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How to save an activity state using save instance state?
...ceState.putInt("MyInt", 1);
savedInstanceState.putString("MyString", "Welcome back to Android");
// etc.
}
The Bundle is essentially a way of storing a NVP ("Name-Value Pair") map, and it will get passed in to onCreate() and also onRestoreInstanceState() where you would then extract the values...
How do I break a string over multiple lines?
... with only a single carriage return appended to the end.
http://symfony.com/doc/current/components/yaml/yaml_format.html
You can use the "block chomping indicator" to eliminate the trailing line break, as follows:
Key: >-
This is a very long sentence
that spans several lines in the YAML
...
What is object slicing?
...
Very informative, but see stackoverflow.com/questions/274626#274636 for an example of how slicing occurs during method calls (which underscores the danger a little better than the plain assignment example).
– Blair Conrad
Nov ...
Java Interfaces/Implementation naming convention [duplicate]
...n that the class is abstract and to how it should be used. You could still come up with a better name than AbstractTruck and use BaseTruck or DefaultTruck instead since the abstract is in the definition. But since Abstract classes should never be part of any public facing interface I believe it is a...
Why is there no SortedList in Java?
...nt the natural ordering you can use the constructor parameter that takes a Comparator<T>.
Alternatively, you can use Multisets (also known as Bags), that is a Set that allows duplicate elements, instead and there are third-party implementations of them. Most notably from the Guava libraries t...
Default value of a type at Runtime [duplicate]
...nce is simply null. So, it really is legitimately an actual null reference coming out of e.g. Activator.CreateInstance(typeof(int?)), not an int?. There's probably an int? internally but it disappears during boxing.
– Jonathan Gilbert
Jul 14 '16 at 17:52
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TCP: can two different sockets share a port?
...f the connection. An established connection is uniquely identified by the combination of client-side and server-side IP/Port pairs. Multiple connections on the same server can share the same server-side IP/Port pair as long as they are associated with different client-side IP/Port pairs, and the s...
When are you truly forced to use UUID as part of the design?
...5 and Version 3 UUIDs use the SHA1 and MD5 hash functions respectively, to combine a namespace with a piece of already unique data to generate a UUID. This will, for example, allow you to produce a UUID from a URL. Collisions here are only possible if the underlying hash function also has a collisio...
C++ lambda with captures as a function pointer
...ion has no room for a state." -> How the hell can languages like Java accomplish this then? Well, of course, because that single, global function is created at runtime and embeds the state (or rather the reference to it) in its own code. That is the whole point - there should not be a single, glo...