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How can I update a single row in a ListView?
...separate thread (with a queue and all) and when the image is downloaded, I now call notifyDataSetChanged() on the list adapter to update the image. This works, but getView() is getting called too frequently, since notifyDataSetChanged() calls getView() for all visible items. I want to update...
Shortcuts in Objective-C to concatenate NSStrings
...her option has many upvotes, I think this is the best answer if you don't know all your strings upon construction. Every time you append a string, you're creating a lot of overhead. Using a mutable string removes that problem.
– Eli
Dec 22 '09 at 1:25
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Android - styling seek bar
...
Google have made this easier in SDK 21. Now we have attributes for specifying the thumb tint colors:
android:thumbTint
android:thumbTintMode
android:progressTint
http://developer.android.com/reference/android/widget/AbsSeekBar.html#attr_android:thumbTint
http://...
How to do associative array/hashing in JavaScript
...able.foo = "bar";
hashtable['bar'] = "foo";
Both foo and bar elements can now then be referenced as:
hashtable['foo'];
hashtable['bar'];
// Or
hashtable.foo;
hashtable.bar;
Of course this does mean your keys have to be strings. If they're not strings they are converted internally to strings, so i...
How can I capture the result of var_dump to a string?
...rray(
)),
'resource' => NULL, // Note that this resource pointer is now NULL
'null' => NULL,
)
var_dump ($debug_dump in above example):
array(8) {
["bool"]=>
bool(false)
["int"]=>
int(1)
["float"]=>
float(3.14)
["string"]=>
string(11) "hello world"
["arr...
How to change the background color of a UIButton while it's highlighted?
...The dropdown list should show CustomButton. Select this, and the button is now subclassed.
– James Toomey
May 17 '17 at 23:44
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“The page you are requesting cannot be served because of the extension configuration.” error message
I'm getting this error message when trying to run my application. I don't know how to fix it:
19 Answers
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How to ssh to vagrant without actually running “vagrant ssh”?
...$(vagrant ssh-config | grep Port | grep -o '[0-9]\+')
ssh -q \
-o UserKnownHostsFile=/dev/null \
-o StrictHostKeyChecking=no \
-i ~/.vagrant.d/insecure_private_key \
vagrant@localhost \
-p $PORT \
"$@"
As a one-liner (with thanks to kgadek):
ssh $(vagrant ssh-config | awk ...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
....h There are no workarounds. It looks like sticking with ImageMagick 6 for now.
On Mac OS X (I tested on Sierra), I used HomeBrew's versions tap like:
brew tap homebrew/versions
brew install imagemagick@6
Then, use the path shown on above installation:
PKG_CONFIG_PATH=/usr/local/opt/imagemagick...
How to call a Parent Class's method from Child Class in Python?
...
@TusharVazirani now I understand, thank you. I was thinking about calling from the current class's method (as was stated by the OP).
– Yaroslav Nikitenko
May 3 at 12:14
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