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How can I convert an image into Base64 string using JavaScript?
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This approach fails in the case of CORS violation. Apart from that, this solution should address the question.
– Revan...
Remove ListView separator(in the xml layout file) [duplicate]
...ight to zero and divider to null like this in xml:
android:dividerHeight="0dp"
android:divider="@null"
Or in java:
getListView().setDividerHeight(0);
getListView().setDivider(null);
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How to get the directory of the currently running file?
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10 Answers
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How to make Java honor the DNS Caching Timeout?
...ou will want to set the following System property:
-Dsun.net.inetaddr.ttl=0
This system property will enable the desired effect.
But be aware: if you don't use the -D flag when starting the JVM process and elect to call this from code instead:
java.security.Security.setProperty("networkaddres...
Auto margins don't center image in page
...his example the image is not centered. Why? My browser is Google Chrome v10 on windows 7, not IE.
9 Answers
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Inserting a string into a list without getting split into characters
...f the list:
list.append('foo')
To insert at the beginning:
list.insert(0, 'foo')
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What is the difference between PS1 and PROMPT_COMMAND
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answered Jun 17 '10 at 1:38
Scott ThomsonScott Thomson
73966 silver badges44 bronze badges
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Fast way of counting non-zero bits in positive integer
...alf again as much time).
On the other hand, gmpy popcount() took about 1/20th of the time of bin(n).count("1"). So if you can install gmpy, use that.
To answer a question in the comments, for bytes I'd use a lookup table. You can generate it at runtime:
counts = bytes(bin(x).count("1") for x in r...
Timeout on a function call
...al function handler
In [4]: signal.signal(signal.SIGALRM, handler)
Out[4]: 0
# Define a timeout for your function
In [5]: signal.alarm(10)
Out[5]: 0
In [6]: try:
...: loop_forever()
...: except Exception, exc:
...: print(exc)
....:
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Forever is o...
How to change the Push and Pop animations in a navigation based app
...w to change the Push and Pop animations in a navigation based app...
For 2019, the "final answer!"
Preamble:
Say you are new to iOS development. Confusingly, Apple provide two transitions which can be used easily. These are: "crossfade" and "flip".
But of course, "crossfade" and "flip" are useless....