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Placeholder in UITextView
...de a few minor modifications to bcd's solution to allow for initialization from a Xib file, text wrapping, and to maintain background color. Hopefully it will save others the trouble.
UIPlaceHolderTextView.h:
#import <Foundation/Foundation.h>
IB_DESIGNABLE
@interface UIPlaceHolderTextView :...
Cross-platform way of getting temp directory in Python
...)
f.seek(0) # return to beginning of file
print f.read() # reads data back from the file
f.close() # temporary file is automatically deleted here
For completeness, here's how it searches for the temporary directory, according to the documentation:
The directory named by the TMPDIR environment va...
How to get the current time in milliseconds from C in Linux?
...on of POSIX, gettimeofday is marked obsolete. This means it may be removed from a future version of the specification. Application writers are encouraged to use the clock_gettime function instead of gettimeofday.
Here is an example of how to use clock_gettime:
#define _POSIX_C_SOURCE 200809L
#inc...
Command-line Tool to find Java Heap Size and Memory Used (Linux)?
...
Worth noting quote from jstat Oracle Java 8 manual page: This command is experimental and unsupported.
– patryk.beza
May 19 '15 at 20:20
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Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
... I have the same problem as Dimitris - I had to create a dump from the database, drop the database and restore it from the dump.
– Gerfried
Aug 20 '15 at 14:53
1
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How to detect the end of loading of UITableView
... comment is right. If you want this code to detect end of loading all data from source, it wouldn't, but that's not the original question. This code is for detecting when all cells that are meant to be visible are displayed. willDisplayCell: used here for smoother UI (single cell usually displays fa...
How do I make a textbox that only accepts numbers?
...mp; !char.IsControl(e.KeyChar);
}
NOTE: This DOES NOT prevent a user from Copy / Paste into this textbox. It's not a fail safe way to sanitize your data.
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Command to get time in milliseconds
...ee first characters of nanoseconds to get the milliseconds:
date +%s%3N
From man date:
%N nanoseconds (000000000..999999999)
%s seconds since 1970-01-01 00:00:00 UTC
Source: Server Fault's How do I get the current Unix time in milliseconds in Bash?.
...
Rotate axis text in python matplotlib
...ended though):
fig.autofmt_xdate(rotation=45)
fig you would usually get from:
fig = plt.figure()
fig, ax = plt.subplots()
fig = ax.figure
Object-Oriented / Dealing directly with ax
Option 3a
If you have the list of labels:
labels = ['One', 'Two', 'Three']
ax.set_xticklabels(labels, rotatio...
Extract public/private key from PKCS12 file for later use in SSH-PK-Authentication
I want to extract the public and private key from my PKCS#12 file for later use in SSH-Public-Key-Authentication.
7 Answ...