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What Android tools and methods work best to find memory/resource leaks? [closed]
...iew));
System.gc();
}
private void unbindDrawables(View view) {
if (view.getBackground() != null) {
view.getBackground().setCallback(null);
}
if (view instanceof ViewGroup) {
for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
unbindDrawa...
Relative frequencies / proportions with dplyr
Suppose I want to calculate the proportion of different values within each group. For example, using the mtcars data, how do I calculate the relative frequency of number of gears by am (automatic/manual) in one go with dplyr ?
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PG::ConnectionBad - could not connect to server: Connection refused
...stmaster (PID 347) running in data directory "/usr/local/var/postgres"?
If so, rm postmaster.pid
Restart your server. On a mac using launchctl (with homebrew) the following commands will restart the server.
launchctl unload homebrew.mxcl.postgresql.plist
launchctl load -w homebrew.mxcl.postgre...
Cannot create an array of LinkedLists in Java…?
...1000).get(2000)) will make LinkedList iterate 3000 times! Avoid LinkedList if anyone may be indexing into it. ArrayList will index faster, but Fredrik's solution is better overall.
– Steve Zobell
Mar 9 '17 at 20:08
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How to get complete month name from DateTime
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Use the "MMMM" custom format specifier:
DateTime.Now.ToString("MMMM");
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How do I Convert DateTime.now to UTC in Ruby?
If I have d = DateTime.now , how do I convert 'd' into UTC (with the appropriate date)?
7 Answers
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Uploading Files in ASP.net without using the FileUpload server control
...edFile file = Request.Files["myFile"];
//check file was submitted
if (file != null && file.ContentLength > 0)
{
string fname = Path.GetFileName(file.FileName);
file.SaveAs(Server.MapPath(Path.Combine("~/App_Data/", fname)));
}
}
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Microsecond timing in JavaScript
...ming data to script: the W3C High Resolution Timer, aka window.performance.now().
now() is better than the traditional Date.getTime() in two important ways:
now() is a double with submillisecond resolution that represents the number of milliseconds since the start of the page's navigation. It re...
How can I detect when an Android application is running in the emulator?
I would like to have my code run slightly differently when running on the emulator than when running on a device. ( For example , using 10.0.2.2 instead of a public URL to run against a development server automatically.) What is the best way to detect when an Android application is running in the em...
how to show lines in common (reverse diff)?
...hich I'd like to know the lines in common rather than the lines which are different between them. Command line unix or windows is fine.
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