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ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
...码就可以达到很好的效果。使用 Custom draw 来对控件外观编程甚至可以代替很多的古老方法。
以下代码是在WIN98 和VC6 SP2的环境下写的，common controls DLL的版本是5.0。我已经对其在WinNT 4上进行了测试。系统要运行这些代码，它的com...
Android: Create spinner programmatically from array
...
In Kotlin language you can do it in this way:
val values = arrayOf(
"cat",
"dog",
"chicken"
)
ArrayAdapter(
this,
android.R.layout.simple_spinner_item,
values
).also {
it.setDropDownViewResource(and...
Convert java.util.Date to java.time.LocalDate
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Is there a Kotlin library that packages these as extension functions so that a developer can do the following. Date x = ...; x.asLocalDate();
– Mark Ashworth
Feb 8 '18 at 12:22
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How do I find out if first character of a string is a number?
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IN KOTLIN :
Suppose that you have a String like this :
private val phoneNumber="9121111111"
At first you should get the first one :
val firstChar=phoneNumber.slice(0..0)
At second you can check the first char that return a Boo...
Need to handle uncaught exception and send log file
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Handling uncaught Exceptions:
as @gilm explained just do this, (kotlin):
private val defaultUncaughtHandler = Thread.getDefaultUncaughtExceptionHandler();
override fun onCreate() {
//...
Thread.setDefaultUncaughtExceptionHandler { t, e ->
Crashlytics.logException(e)
...
How to use ArgumentCaptor for stubbing?
...e design you would avoid return null at all costs, use Optional or move to Kotlin. This implies that verify does not need to be used that often and ArgumentCaptors are just too tedious to write.
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Best practice for instantiating a new Android Fragment
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Some kotlin code:
companion object {
fun newInstance(first: String, second: String) : SampleFragment {
return SampleFragment().apply {
arguments = Bundle().apply {
putString("firstString", ...
Start an Activity with a parameter
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Kotlin code:
Start the SecondActivity:
startActivity(Intent(context, SecondActivity::class.java)
.putExtra(SecondActivity.PARAM_GAME_ID, gameId))
Get the Id in SecondActivity:
class CaptureActivity : AppCompatActivit...
Java Generics Wildcarding With Multiple Classes
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Here's how you would do it in Kotlin
fun <T> myMethod(item: T) where T : ClassA, T : InterfaceB {
//your code here
}
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improve this answ...
Java Synchronized Block for .class
... was wondering about this question for couple days for myself (actually in kotlin). I finally found good explanation and want to share it:
Class level lock prevents multiple threads to enter in synchronized block in any of all available instances of the class on runtime. This means if in runtime the...