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What is the second parameter of NSLocalizedString()?
...
The comment string is ignored by the application. It is used for a translator's benefit, to add meaning to the contextual usage of the key where it is found in your application.
For example, the Hello_World_Key key may take different v...
Delete all lines beginning with a # from a file
...#.*$//' filename
though that treats, for example, a # character within a string literal as the beginning of a comment (which may or may not be relevant for your case) (and it leaves empty lines).
A line starting with arbitrary whitespace followed by # might also be treated as a comment:
grep -v ...
Android: how to make an activity return results to the activity which calls it?
...u can make use of setData() to return result.
Intent data = new Intent();
String text = "Result to be returned...."
//---set the data to pass back---
data.setData(Uri.parse(text));
setResult(RESULT_OK, data);
//---close the activity---
finish();
So then again in the first activity you write the b...
How to check if a URL is valid
How can I check if a string is a valid URL?
9 Answers
9
...
What are best practices for using SmtpClient, SendAsync and Dispose under .NET 4.0
...end email asynchronously is as the following:
public async Task SendEmail(string toEmailAddress, string emailSubject, string emailMessage)
{
using (var message = new MailMessage())
{
message.To.Add(toEmailAddress);
message.Subject = emailSubject;
message.Body = emai...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...类型的传感器数据
if contains topic "temperature" then
handleTemperatureData Data
else if contains topic "humidity" then
handleHumidityData Data
else if contains topic "light" then
handleLightData Data
else if contains topic "soil_moisture" then
...
@property retain, assign, copy, nonatomic in Objective-C
...xample:
.h
@interface XYZClass : NSObject
@property (nonatomic, retain) NSString *name;
@end
.m
@implementation XYZClass
@synthesize name;
@end
Now the compiler will synthesize accessor methods for name.
XYZClass *obj=[[XYZClass alloc]init];
NSString *name1=[obj name]; // get 'name'
[obj setN...
Remove a prefix from a string [duplicate]
...e behavior of the new function is exactly as in this answer (returning the string unchanged if it does not start with prefix)
– Elazar
May 27 at 23:50
...
Difference between volatile and synchronized in Java
...ect=new SomeObject(...); // new object is published
// Using code
private String getError() {
SomeObject myCopy=SharedLocation.someObject; // gets current copy
...
int cod=myCopy.getErrorCode();
String txt=myCopy.getErrorText();
return (cod+" - "+txt);
}
// And so on, with m...
Java using enum with switch statement
... a few usages of Java enum:
.name() allows you to fetch the enum name in String.
.ordinal() allow you to get the integer value, 0-based.
You can attach other value parameters with each enum.
and, of course, switch enabled.
enum with value parameters:
enum StateEnum {
UNDEFINED_POLL ...