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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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Is it Pythonic to use list comprehensions for just side effects?
Think about a function that I'm calling for its side effects, not return values (like printing to screen, updating GUI, printing to a file, etc.).
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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...
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...
Fit Image in ImageButton in Android
... ImageView.ScaleType MATRIX Scale using the image matrix when drawing.
https://developer.android.com/reference/android/widget/ImageView.ScaleType.html
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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...
convert ArrayList to JSONArray
...s
import com.google.gson.Gson
import com.google.gson.reflect.TypeToken
fun <T> Gson.convertToJsonString(t: T): String {
return toJson(t).toString()
}
fun <T> Gson.convertToModel(jsonString: String, cls: Class<T>): T? {
return try {
fromJson(jsonString, cls)
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array_push() with key value pair
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Warning: $a['123'] = 456; - string '123' is converted to integer key 123.
– bancer
Jul 2 at 12:58
1
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How to show particular image as thumbnail while implementing share on Facebook?
...k.
Enter your URL here and FB will update the metadata from your page:
https://developers.facebook.com/tools/debug (updated link)
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How to get the URL of the current page in C# [duplicate]
...alhost:1234/Default.aspx?un=asdf&somethingelse=fdsa"
or like this:
"https://www.something.com/index.html?a=123&b=4567"
and you only want the part that a user would type in then this will work:
String strPathAndQuery = HttpContext.Current.Request.Url.PathAndQuery;
String strUrl = HttpCo...