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How do we use runOnUiThread in Android?
...then call this function from your background thread.
public void debugMsg(String msg) {
final String str = msg;
runOnUiThread(new Runnable() {
@Override
public void run() {
mInfo.setText(str);
}
});
}
...
What's the difference between “Request Payload” vs “Form Data” as seen in Chrome dev tools Network t
...is no such thing as a "json object". the json data sent is sent as a plain string because json is essentially a string. you can of course convert it into a standard "object" with json_encode but that doesn't make it a "json object" either.
– Volkan Ulukut
Dec 7...
What does the “@” symbol do in Powershell?
...ters, e.g. using the hash table just above, Copy-Item @HashArguments
Here strings (see about_quoting_rules)
Let's you create strings with easily embedded quotes, typically used for multi-line strings, e.g.:
$data = @"
line one
line two
something "quoted" here
"@
Because this type of question (w...
Android: Is it possible to display video thumbnails?
...use since API level 8 (2.2)
public static Bitmap createVideoThumbnail (String filePath, int kind)
Android documentation
The following code runs perfectly:
Bitmap bMap = ThumbnailUtils.createVideoThumbnail(file.getAbsolutePath(), MediaStore.Video.Thumbnails.MICRO_KIND);
...
What Automatic Resource Management alternatives exist for Scala?
...ported: try with resources by using Using :), Example:
val lines: Try[Seq[String]] =
Using(new BufferedReader(new FileReader("file.txt"))) { reader =>
Iterator.unfold(())(_ => Option(reader.readLine()).map(_ -> ())).toList
}
or using Using.resource avoid Try
val lines: Seq[Strin...
Which characters are valid/invalid in a JSON key name?
...here any forbidden characters in key names, for JavaScript objects or JSON strings? Or characters that need to be escaped?
...
support FragmentPagerAdapter holds reference to old fragments
...tag of the fragment auto generated by the FragmentPagerAdapter...
private String getFragmentTag(int pos){
return "android:switcher:"+R.id.viewpager+":"+pos;
}
Then I simply get a reference to that fragment and do what I need like so...
Fragment f = this.getSupportFragmentManager().findFragme...
What does !! mean in ruby?
...method to return a boolean. It will detect any kind of truthiness, such as string, integers and what not, and turn it into a boolean.
!"wtf"
# => false
!!"wtf"
# => true
A more real use case:
def title
"I return a string."
end
def title_exists?
!!title
end
This is useful when you w...
Fastest way to serialize and deserialize .NET objects
...ainly one of the fastest) general purpose serializer in .NET.
If you need strings, just base-64 encode the binary.
[XmlType]
public class CT {
[XmlElement(Order = 1)]
public int Foo { get; set; }
}
[XmlType]
public class TE {
[XmlElement(Order = 1)]
public int Bar { get; set; }
}
[...
Match linebreaks - \n or \r\n?
...eeds
// ---------------------------------------
void ReplaceCRLFCRtoLF( string& strSrc, string& strDest )
{
strDest = boost::regex_replace ( strSrc, CRLFCRtoLF, "\\n" );
}
// Convert linefeeds to linebreaks (Windows)
// ---------------------------------------
void ReplaceCRLFC...