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Removing All Child Views from View
How would I remove all child views from a widget? For example, I have a GridView and I dynamically inflate many other LinearLayouts into it; later in my application I am looking to start fresh with that GridView and clear all of its child Views. How would I do this? TIA.
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How do I efficiently iterate over each entry in a Java Map?
...p.entrySet()) {
i += pair.getKey() + pair.getValue();
}
Using forEach from Java 8
final long[] i = {0};
map.forEach((k, v) -> i[0] += k + v);
Using keySet and foreach
long i = 0;
for (Integer key : map.keySet()) {
i += key + map.get(key);
}
Using keySet and iterator
long i = 0;
Iter...
Counting inversions in an array
...he only moment when inversions are removed is when algorithm takes element from the right side of an array and merge it to the main array.
The number of inversions removed by this operation is the number of elements left from the the left array to be merged. :)
Hope it's explanatory enough.
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How to sort my paws?
...nts where it did work to build up a training dataset (of ~2000 paw impacts from ~30 different dogs) to recognize which paw is which, and the problem reduces to a supervised classification (With some additional wrinkles... Image recognition is a bit harder than a "normal" supervised classification pr...
Create a submodule repository from a folder and keep its git commit history
...epository for this demo application and make it a subpackage submodule from main repository without losing its commit history.
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How to optimize for-comprehensions and loops in Scala?
...he smallest positive number that is evenly divisible by all of the numbers from 1 to 20?"
8 Answers
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How do you close/hide the Android soft keyboard using Java?
...access to the IMM. Now we have a problem. I may want to hide the keyboard from a static or utility class that has no use or need for any Context. or And FAR worse, the IMM requires that you specify what View (or even worse, what Window) you want to hide the keyboard FROM.
This is what makes hiding ...
[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes) - #9 by ...
...Hello dears,
I'm newbie here and trying to send big strings, like 128bytes from the app to my hardware(ESP32).
From the app side I have a text box that is sending the string to ESP32, all working except when I try to send strings over 23bytes. Ok, I read some topics here and tried to apply those sol...
Generate colors between red and green for a power meter?
...)
Another way to do would be to use a HSV colour model, and cycle the hue from 0 degrees (red) to 120 degrees (green) with whatever saturation and value suited you. This should give a more pleasing gradient.
Here's a demonstration of each technique - top gradient uses RGB, bottom uses HSV:
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How to cherry pick from 1 branch to another
...t cherry-pick -x <sha>
then at least you'll get the commit message from the original commit appended to your new commit, along with the original SHA, which is very useful for tracking cherry-picks.
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