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Change the Right Margin of a View Programmatically?
... bottom = 8.px)
val bottomDp = myView1.marginBottom.dp
Old answer:
In Kotlin you can declare an extension function like:
fun View.setMargins(
leftMarginDp: Int? = null,
topMarginDp: Int? = null,
rightMarginDp: Int? = null,
bottomMarginDp: Int? = null
) {
if (layoutParams is...
Capture Image from Camera and Display in Activity
...y result API: https://developer.android.com/training/basics/intents/result#kotlin
There are many built-in ActivityResultContracts that allow you to do different things like pick contacts, request permissions, take pictures or take videos. You are probably interested in the ActivityResultContracts.T...
Android ImageView Zoom-in and Zoom-Out
...
I am using your class in a kotlin project. All I had to do is to replace the ImageView with your ZoomableImageView in the layout xml and it did work out of the box! Thanks.
– Lensflare
Sep 14 '18 at 13:19
...
How to parse the AndroidManifest.xml file inside an .apk package
...
Any Java/Kotlin solution that could work for Android?
– android developer
Mar 6 at 8:06
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...
When and why would you seal a class?
... inheritance or else prohibit it (discussion of same item)
Also note that Kotlin seals classes by default; its open keyword is the opposite of Java's final or the sealed of C#. (To be sure, there is no universal agreement that this is a good thing.)
...
Is Python strongly typed?
...erence
Java forces you to explicitly declare your object types
int x = 50
Kotlin uses inference to realize it's an int
x = 50
But because both languages use static types, x can't be changed from an int. Neither language would allow a dynamic change like
x = 50
x = 'now a string'
...
Checking if an Android application is running in the background
...E SOLUTION - not a hack, like previous solutions. Use ProcessLifecycleOwnerKotlin:
class ArchLifecycleApp : Application(), LifecycleObserver {
override fun onCreate() {
super.onCreate()
ProcessLifecycleOwner.get().lifecycle.addObserver(this)
}
@OnLifecycleEvent(Lifecyc...
Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术
...中调用 boost::asio::io_service::run() 来确保回调是适用于并发编程的.
一个基于asio的程序最好是从单线程入手,但是单线程有如下的限制,这一点在服务器上尤其明显:
当回调耗时较长时,反应迟钝.
在多核的系统上无能为力
如果...
Android Studio Project Structure (v.s. Eclipse Project Structure)
...d O latest
Android Auto
Android things
Android wear
Android TV
C++ support
Kotlin support
The structure in version 3.0.1 does not look at all like all other answers.
Recent structure is as displayed in 2018, Android Studio 3.0.1 01/2018.
Newbie kinda found something resembling to usable in featu...
从Sloodle看三维虚拟学习环境的发展趋势 - 资讯 - 清泛网 - 专注C/C++及内核技术
...。在这种学习环境下 ,学生的学习动机明显增强 ,计算机编程能力也得到快速提高。
像 Active Worlds一样 , SL也允许教学设计者创作教育游戏和仿真 ,但是与其他平台不同的是 ,在 SL中内容生成工具不仅仅对管理员和开发者开放 ,...