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How to detect a Christmas Tree? [closed]
...nst the blue-green background which is prevalent in most of the photos. I convert the rgb image to hsv space, and require that the hue is either less than 0.2 on a 0.0-1.0 scale (corresponding roughly to the border between yellow and green) or greater than 0.95 (corresponding to the border between ...
Change the Right Margin of a View Programmatically?
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@KKendall: Just convert your DP to PX first.
– Kevin Coppock
Oct 12 '12 at 22:20
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Showing the stack trace from a running Python application
...'s dump). Here is an implementation based on this blog:
import threading, sys, traceback
def dumpstacks(signal, frame):
id2name = dict([(th.ident, th.name) for th in threading.enumerate()])
code = []
for threadId, stack in sys._current_frames().items():
code.append("\n# Thread:...
Does setWidth(int pixels) use dip or px?
...The answer is in TypedValue.applyDimension(). Here's an example of how to convert dips to px in code:
// Converts 14 dip into its equivalent px
Resources r = getResources();
int px = Math.round(TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP, 14,r.getDisplayMetrics()));
...
How to make child process die after parent exits?
...le to modify the child process, you can try something like the following:
int pipes[2];
pipe(pipes)
if (fork() == 0) {
close(pipes[1]); /* Close the writer end in the child*/
dup2(0, pipes[0]); /* Use reader end as stdin */
exec("sh -c 'set -o monitor; child_process & read dummy; ki...
How to check visibility of software keyboard in Android?
... pixels is not sufficient for xxhdpi devices such as the Nexus 4. Consider converting that value to DPs if you really want to use this hacky work-around.
– Paul Lammertsma
Jan 3 '13 at 10:41
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Comparing date ranges
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I created function to deal with this problem in MySQL. Just convert the dates to seconds before use.
DELIMITER ;;
CREATE FUNCTION overlap_interval(x INT,y INT,a INT,b INT)
RETURNS INTEGER DETERMINISTIC
BEGIN
DECLARE
overlap_amount INTEGER;
IF (((x <= a) AND (a < y)) OR...
Using print statements only to debug
...le log methods, debug, info, warning, error and critical.
import logging, sys
logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
logging.debug('A debug message!')
logging.info('We processed %d records', len(processed_records))
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Create a List of primitive int?
... all in one container.
Is my only option, creating an array of int and converting it into a list
In that case also, you will get a List<Integer> only. There is no way you can create List<int> or any primitives.
You shouldn't be bothered anyways. Even in List<Integer> you can...
Best approach to remove time part of datetime in SQL Server
...pe resulted in an out-of-range datetime value Try: select DATEDIFF(dd, 0, convert(datetime2(0), '0218-09-12', 120))
– Bernhard Döbler
Sep 12 '18 at 16:03
1
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