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Supabase 拓展：App 接入 Supabase 后端服务（Auth + PostgreSQL + Storage...
... 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 ...
DaffyMenu 扩展：弹出菜单扩展，为组件添加弹出式菜单功能 · App Inventor 2 中文网
... 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 ...
Android dismiss keyboard
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Here's a Kotlin solution (mixing the various answers in thread)
Create an extension function (perhaps in a common ViewHelpers class)
fun Activity.dismissKeyboard() {
val inputMethodManager = getSystemService( Context.INPUT_METHO...
技术人员如何创业《一》—— 产品及想法 - 资讯 - 清泛网 - 专注C/C++及内核技术
...源优势（哈佛）。其实他这个php网站我想现在很多学过web编程的都可以制造出来，有几个能做成facebook呢？
在《中国合伙人》中也有个场景，成东青因为在外面开小班被大学辞退了。最后一堂课时改变了原有的讲课风格，原来...
How to disable an Android button?
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In Kotlin, if you refer the Button View with id then, enable/disable button as like
layout.xml
<Button
android:id="@+id/btn_start"
android:layout_width="100dp"
android:layout_height="50dp"
android:text="@stri...
How to check if my string is equal to null?
... return true;
}
else {
return false;
}
Updated
For Kotlin we check if the string is null or not by following
return myString.isNullOrEmpty() // Returns `true` if this nullable String is either `null` or empty, false otherwise
return myString.isEmpty() // Returns `true` if th...
Programmatically go back to the previous fragment in the backstack
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requireActivity().onBackPressed() for Kotlin
– Ayxan Haqverdili
Jul 10 at 10:35
add a comment
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How to build sources jar with gradle
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The Kotlin DSL equivalent would be:
tasks {
val sourcesJar by creating(Jar::class) {
dependsOn(JavaPlugin.CLASSES_TASK_NAME)
classifier = "sources"
from(java.sourceSets["main"].allSource)
}
...
Calling a Fragment method from a parent Activity
...gment.<specific_function_name>();
Update:
For those who are using Kotlin
var fragment = supportFragmentManager.findFragmentById(R.id.frameLayoutCW) as WebViewFragment
fragment.callAboutUsActivity()
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How do I change the android actionbar title and icon
... @JoseManuelAbarcaRodríguez Thank you, that's what was missing for me. In Kotlin: supportActionBar?.setDisplayShowTitleEnabled(true) then supportActionBar?.title = "your title". And it has to be done in onResume, not in onCreate, when creating the activity with startActivity.
–...