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How to make a countdown timer in Android?
....Date;
public class MainActivity extends AppCompatActivity {
private String EVENT_DATE_TIME = "2020-12-31 10:30:00";
private String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
private LinearLayout linear_layout_1, linear_layout_2;
private TextView tv_days, tv_hour, tv_minute, tv_second;
...
Get the current displaying UIViewController on the screen in AppDelegate.m
...
@Mingming it shouldn't be that hard to add an extra if to check if its the custom container VC (in the getVisibielController method) and if so return the "visible" controller, which would typically be vc.childControllers.lastObject for most custom container VC implementa...
How to enumerate an enum with String type?
...n, you may specify the conformance directly in the declaration:
enum Suit: String, CaseIterable { case spades = "♠"; case hearts = "♥"; case diamonds = "♦"; case clubs = "♣" }
Then the following code will print all possible values:
Suit.allCases.forEach {
print($0.rawValue)
}
Compatib...
Using the RUN instruction in a Dockerfile with 'source' does not work
...xpect a fully POSIX shell at /bin/sh. The bash shell isn't just POSIX plus extra builtins. There are builtins (and more) that behave entirely different than those in POSIX. I FULLY support avoiding POSIX (and the fallacy that any script that you didn't test on another shell is going to work because ...
Get data from fs.readFile
...file named filename.
If encoding is specified then this function returns a string. Otherwise it returns a buffer.
var text = fs.readFileSync('test.md','utf8')
console.log (text)
share
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improve thi...
How to JSON serialize sets?
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JSON notation has only a handful of native datatypes (objects, arrays, strings, numbers, booleans, and null), so anything serialized in JSON needs to be expressed as one of these types.
As shown in the json module docs, this conversion can be done automatically by a JSONEncoder and JSONDecoder,...
How do I print the type of a variable in Rust?
... This is intended for diagnostic use. The exact contents and format of the string are not specified, other than being a best-effort description of the type.
If you want your type representation to stay the same between compiler versions, you should use a trait, like in the phicr's answer.
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java.net.URLEncoder.encode(String) is deprecated, what should I use instead?
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Use the other encode method in URLEncoder:
URLEncoder.encode(String, String)
The first parameter is the text to encode; the second is the name of the character encoding to use (e.g., UTF-8). For example:
System.out.println(
URLEncoder.encode(
"urlParameterString",
java.nio...
Update MongoDB field using value of another field
....0
The way we do this is by $projecting our documents and use the $concat string aggregation operator to return the concatenated string.
we From there, you then iterate the cursor and use the $set update operator to add the new field to your documents using bulk operations for maximum efficiency.
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Django “xxxxxx Object” display customization in admin action sidebar
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The string you're seeing is coming from __unicode__ method, as others have mentioned. But the thing is that admin saves string representation of an object when it creates log event, therefore if you add __unicode__ implementation...