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Detecting when user has dismissed the soft keyboard
...ow...
So I created a more neat solution with Kotlin
1.Create an extension function:
fun Activity.addKeyboardToggleListener(onKeyboardToggleAction: (shown: Boolean) -> Unit): KeyboardToggleListener? {
val root = findViewById<View>(android.R.id.content)
val listener = KeyboardToggl...
Standardize data columns in R
...scale"))
newData <- predict(preObj, data[, -10])
More details: http://www.inside-r.org/node/86978
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Fastest way to determine if an integer's square root is an integer
...technique in Java once you get the idea:
I originally found it at: http://www.codemaestro.com/reviews/9
Newton's method explained at wikipedia: http://en.wikipedia.org/wiki/Newton%27s_method
You can follow the link for more explanation of how it works, but if you don't care much, then this is rou...
How to identify numpy types in python?
...couraged if it's not intuitive or easy, it's a pain at first.
See also:
- https://docs.scipy.org/doc/numpy-1.15.1/reference/arrays.dtypes.html
- https://github.com/machinalis/mypy-data/tree/master/numpy-mypy
>>> import numpy as np
>>> np.ndarray
<class 'numpy.ndarray'>
>...
How to convert SecureString to System.String?
... Andrew ArnottAndrew Arnott
72.7k2424 gold badges123123 silver badges162162 bronze badges
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How to pass a variable from Activity to Fragment, and pass it back?
...d solution because it keeps your activities and fragments loosely coupled
https://github.com/greenrobot/EventBus
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How to Query an NTP Server using C#?
...ntry(ntpServer).AddressList;
//The UDP port number assigned to NTP is 123
var ipEndPoint = new IPEndPoint(addresses[0], 123);
//NTP uses UDP
using(var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
{
socket.Connect(ipEndPoint);
...
How to create border in UIButton?
...= 2.0f;
myButton.layer.borderColor = [UIColor greenColor].CGColor;
See:
https://developer.apple.com/documentation/quartzcore/calayer#//apple_ref/occ/cl/CALayer
The CALayer in the link above allows you to set other properties like corner radius, maskToBounds etc...
Also, a good article on button...
What should be in my .gitignore for an Android Studio project?
...OS X clutter
*.DS_Store
# Windows clutter
Thumbs.db
# Intellij IDEA (see https://intellij-support.jetbrains.com/entries/23393067)
.idea/workspace.xml
.idea/tasks.xml
.idea/datasources.xml
.idea/dataSources.ids
Also note that as pointed out, the built native files section is primarily useful when...
Connecting overloaded signals and slots in Qt 5
...verloading problem is clearly stated in the docs themselves. For instance, https://doc.qt.io/qt-5/qspinbox.html#valueChanged-1 says
Note: Signal valueChanged is overloaded in this class. To connect to this signal by using the function pointer syntax, Qt provides a convenient helper for obtaining...