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Android splash screen image sizes to fit all devices
...ldpi ~ 120dpi)
Medium Density (mdpi ~ 160dpi)
High Density (hdpi ~ 240dpi)
Extra-High Density (xhdpi ~ 320dpi)
(These dpi values are approximations, since custom built devices will have varying dpi values)
What you (if you're a designer) need to know from this is that Android basically chooses fro...
Convert nested Python dict to object?
...lass inherit from argparse.Namespace for additional features like readable string representation.
– Serrano
Apr 11 '14 at 15:27
2
...
How to start an Intent by passing some parameters to it?
...ivity
Intent myIntent = getIntent(); // gets the previously created intent
String firstKeyName = myIntent.getStringExtra("firstKeyName"); // will return "FirstKeyValue"
String secondKeyName= myIntent.getStringExtra("secondKeyName"); // will return "SecondKeyValue"
If your parameters are ints you w...
Match multiple cases classes in scala
...
Looks like you don't care about the values of the String parameters, and want to treat B and C the same, so:
def matcher(l: Foo): String = {
l match {
case A() => "A"
case B(_) | C(_) => "B"
case _ => "default"
}
}
If you must, must, must extract ...
Passing Data between View Controllers
...oryboardSegue *)segue sender:(id)sender{
if([segue.identifier isEqualToString:@"showDetailSegue"]){
ViewControllerB *controller = (ViewControllerB *)segue.destinationViewController;
controller.isSomethingEnabled = YES;
}
}
If you have your views embedded in a navigation con...
Sending HTTP POST Request In Java
... well defined format. We need to convert our input to this format:
Map<String,String> arguments = new HashMap<>();
arguments.put("username", "root");
arguments.put("password", "sjh76HSn!"); // This is a fake password obviously
StringJoiner sj = new StringJoiner("&");
for(Map.Entry&l...
android get all contacts
...get all the names of the contacts in my Android and put them into array of strings?
8 Answers
...
Printing everything except the first field with awk
...for loop:
awk '{for (i=2; i<=NF; i++) print $i}' filename
So if your string was "one two three", the output will be:
two
three
If you want the result in one row, you could do as follows:
awk '{for (i=2; i<NF; i++) printf $i " "; print $NF}' filename
This will give you: "two three"
...
Performance of static methods vs instance methods
... you mean that if above sample method takes parameter as object instead of string, non-static is better? for example: I have my static method takes object as parameter and serializes it into string and returns string. are you suggesting to use non-static in this case?
– batmaci...
SQLAlchemy: Creating vs. Reusing a Session
... of expire_on_commit pretty much optional, as this flag can incur a lot of extra SQL for an operation that calls commit() in the middle of a series of operations. Not sure if this answers your question.
The next round is what you mention about threading. If your app is multithreaded, we recomme...