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Indexes of all occurrences of character in a string
...llectors.toList()) // collect found indices into a list
);
Here's the Kotlin Solution to add this logic as a new a new methods into CharSequence API using extension method:
// Extension method
fun CharSequence.indicesOf(input: String): List<Int> =
Regex(Pattern.quote(input)) // build...
How to set layout_gravity programmatically?
...t = 1.0f;
params.gravity = Gravity.TOP;
button.setLayoutParams(params);
Kotlin
val params = LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT
).apply {
weight = 1.0f
gravity = Gravity.TOP
}
For gravity values and how to se...
再说WCF Data Contract KnownTypeAttribute - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
...一种标识方式是不用加代码的，在配置文件中通过声明型编程实现：
<system.runtime.serialization>
<dataContractSerializer>
<declaredTypes>
<add type="WcfServiceDemo.Address, MyAssembly, Version=2.0.0.0, Culture=neutral,PublicKeyToken=null, processorArchitect...
Notifier 通知扩展：功能强大的Android通知管理工具，支持通知通道、意图、...
... 教育 中文教育版 各版本对比 App上架指南 入门必读 IoT专题 AI2拓展 Aia Store 关于 关于我们 发布日志 服务条款 ...
converting Java bitmap to byte array
...
Here is bitmap extension .convertToByteArray wrote in Kotlin.
/**
* Convert bitmap to byte array using ByteBuffer.
*/
fun Bitmap.convertToByteArray(): ByteArray {
//minimum number of bytes that can be used to store this bitmap's pixels
val size = this.byteCount
...
Programmatically update widget from activity/service/receiver
...
Phaethon's accepted solution in Kotlin:
val intent = Intent(this, MyAppWidgetProvider::class.java)
intent.action = AppWidgetManager.ACTION_APPWIDGET_UPDATE
val ids = AppWidgetManager.getInstance(application).getAppWidgetIds(ComponentName(getApp...
Get root view from current activity
...
In Kotlin we can do it a little shorter:
val rootView = window.decorView.rootView
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What's the best way to limit text length of EditText in Android
...ew InputFilter.LengthFilter(maxLength);
editText.setFilters(newFilters);
Kotlin however made it easier for everyone, you also need to add the filter to the already existing ones but you can achieve that with a simple:
editText.filters += InputFilter.LengthFilter(maxLength)
...
How to add -Xlint:unchecked to my Android Gradle based project?
...
For deprecation, you can now use this in gradle kotlin script, which is better than modifying compilerArgs because it's type-safe:
tasks.withType<JavaCompile> {
options.isDeprecation = true
}
...
开源MQTT网关：EMQX vs Mosquitto - 创客硬件开发 - 清泛IT社区，为创新赋能！
...g/OTP 编写，这是一种用于构建大规模可扩展软实时系统的编程语言。与 Mosquitto 不同，EMQX 在设计之初即采用了分布式集群架构，可以轻松实现弹性水平扩展，从而稳定承载大规模的 MQTT 客户端接入。最新版本 EMQX 5.0 可在 23 个节...