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I have an error: setOnItemClickListener cannot be used with a spinner, what is wrong?
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Kotlin:
spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
print("onItemSelected positio...
Get all child views inside LinearLayout at once
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It is easier with Kotlin using for-in loop:
for (childView in ll.children) {
//childView is a child of ll
}
Here ll is id of LinearLayout defined in layout XML.
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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...地址。
相对地址有很好多处，其可以玩出一些有意思的编程技巧，比如把C搞出面向对象式的感觉来，你可以参看我正好11年前的文章《用C写面向对像的程序》（用指针类型强转的危险玩法——相对于C++来说，C++编译器帮你管了...
What is the equivalent of “android:fontFamily=”sans-serif-light" in Java code?
...getResources().getFont(R.font.myfont);
textView.setTypeface(typeface);
// Kotlin
val typeface = resources.getFont(R.font.myfont)
textView.typeface = typeface
Option 2 - API 16 and higher
// Java
Typeface typeface = ResourcesCompat.getFont(context, R.font.myfont);
// Kotlin
val typeface = Resour...
AsyncProcedures异步过程扩展 · 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 ...
Recommended way to stop a Gradle build
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are there any nice syntax options here? Consider kotlin's preconditions syntax: require(something != whatever) { "No good!" } as opposed to the more verbose and type-ee if(something != whatever){ throw new GradleException("No good!") }
– Groostav
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GestureDetect 扩展：手势检测扩展，识别滑动、点击和长按手势 · 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 ...
How do you close/hide the Android soft keyboard using Java?
...e it to appear (by holding down the menu).
Note: If you want to do this in Kotlin, use:
context?.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
Kotlin Syntax
// Check if no view has focus:
val view = this.currentFocus
view?.let { v ->
val imm = getSystemService(Context.I...
Is there a way to define a min and max value for EditText in Android?
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Kotlin if any one needs it (Use Utilities)
class InputFilterMinMax: InputFilter {
private var min:Int = 0
private var max:Int = 0
constructor(min:Int, max:Int) {
this.min = min
this.max = max
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Storing R.drawable IDs in XML array
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kotlin way could be this:
fun Int.resDrawableArray(context: Context, index: Int, block: (drawableResId: Int) -> Unit) {
val array = context.resources.obtainTypedArray(this)
block(array.getResourceId(index, -1))
arra...