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Set transparent background of an imageview on Android
...the percentage number by 100 and multiply by 255 to get the decimal value. Convert the decimal to hexadecimal here.
For example, for 50%, 50/100 * 255 = 127. Using the link we get hexadecimal value 7F.
Source: Android: how to create a transparent or opaque background
...
Django template how to look up a dictionary value with a variable
...he function is in the form of a string, so perhaps use ast.literal_eval to convert the string to a dictionary first, like in this example.
With this edit, the code should look like this:
# code for custom template tag
@register.filter(name='lookup')
def lookup(value, arg):
value_dict = ast.liter...
Android - how do I investigate an ANR?
...
You are wondering which task hold a UI Thread. Trace file gives you a hint to find the task. you need investigate a state of each thread
State of thread
running - executing application code
sleeping - called Thread.sleep()
monitor - waiting to acquire a monitor lock
wait - in Object.wait() ...
How can I recursively find all files in current and subfolders based on wildcard matching?
... image was copied from GitHub, but I believe they're using asciinema, then converted to GIF format, but I'm not sure.
– kenorb
Feb 11 '19 at 23:38
...
Add margin above top ListView item (and below last) in Android
...
Additionally, this can be made into a style or theme via <item name="android:clipToPadding">false</item>
– pjco
May 7 '13 at 16:28
...
Is there a use-case for singletons with database access in PHP?
...ou had used a singleton. A singleton is an iffy pattern in itself, but it converts fairly easily to an intelligent factory pattern--can even be converted to use dependency injection without too much trouble. For instance, if your singleton is gotten through getInstance(), you can pretty easily cha...
How to hide only the Close (x) button?
...ble it by overriding the CreateParams property of the form.
private const int CP_NOCLOSE_BUTTON = 0x200;
protected override CreateParams CreateParams
{
get
{
CreateParams myCp = base.CreateParams;
myCp.ClassStyle = myCp.ClassStyle | CP_NOCLOSE_BUTTON ;
return myCp;
...
multiple definition of template specialization when using different objects
...
Intuitively, when you fully specialize something, it doesn't depend on a template parameter any more -- so unless you make the specialization inline, you need to put it in a .cpp file instead of a .h or you end up violating t...
How to get last N records with activerecord?
...d desc LIMIT 5"
The latter is an unevaluated scope. You can chain it, or convert it to an array via .to_a. So:
Something.limit(50000).order('id desc').count
... takes a second.
share
|
improve ...
Query-string encoding of a Javascript Object
... "100%"
}));
// foo=hi%20there&bar=100%25
Edit: this one also converts recursive objects (using php "array" notation for the query string)
serialize = function(obj, prefix) {
var str = [],
p;
for (p in obj) {
if (obj.hasOwnProperty(p)) {
var k = prefix ? pref...