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Error in Swift class: Property not initialized at super.init call
... 1 “A designated initializer must ensure that all of the
“properties introduced by its class are initialized before it
delegates up to a superclass initializer.”
Excerpt From: Apple Inc. “The Swift Programming Language.” iBooks.
https://itunes.apple.com/us/book/swift-programming...
static function in C
What is the point of making a function static in C?
7 Answers
7
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How can I shrink the drawable on a button?
... = getResources().getDrawable(R.drawable.s_vit);
drawable.setBounds(0, 0, (int)(drawable.getIntrinsicWidth()*0.5),
(int)(drawable.getIntrinsicHeight()*0.5));
ScaleDrawable sd = new ScaleDrawable(drawable, 0, scaleWidth, scaleHeight);
Button btn = findViewbyId(R.id.yourbtnID...
Android Paint: .measureText() vs .getTextBounds()
I'm measuring text using Paint.getTextBounds() , since I'm interested in getting both the height and width of the text to be rendered. However, the actual text rendered is always a bit wider than the .width() of the Rect information filled by getTextBounds() .
...
How to access command line parameters?
...econd iterated element.
An easy way to deal with the result of args is to convert it to a Vec:
use std::env;
fn main() {
let args: Vec<_> = env::args().collect();
if args.len() > 1 {
println!("The first argument is {}", args[1]);
}
}
You can use the whole standard i...
Is there a string math evaluator in .NET?
...gests the builtin DataTable.Compute-"trick". Here it is.
double result = Convert.ToDouble(new DataTable().Compute("1 + 2 * 7", null));
The following arithmetic operators are supported in expressions:
+ (addition)
- (subtraction)
* (multiplication)
/ (division)
% (modulus)
More informations: D...
How to get Locale from its String representation in Java?
...
You're right. There still needs to be some way to convert the existing Locale representations to BCP47 format. My intention was to suggest that going forward, Locales should not be stored in their toString form, but in their toLanguageTag form, which is convertible back to a...
Assign variable value inside if-statement [duplicate]
...iables can be assigned but not declared inside the conditional statement:
int v;
if((v = someMethod()) != 0) return true;
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Catch Ctrl-C in C
...lipping a bool used in main():
#include <signal.h>
static volatile int keepRunning = 1;
void intHandler(int dummy) {
keepRunning = 0;
}
// ...
int main(void) {
signal(SIGINT, intHandler);
while (keepRunning) {
// ...
Edit in June 2017: To whom it may concern, particul...
Do scala constructor parameters default to private val?
...
bar: Int
This is barely a constructor parameter. If this variable is not used anywhere except the constructor, it remains there. No field is generated. Otherwise private val bar field is created and value of bar parameter is assi...