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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...
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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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...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
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在编写此扩展之前，我从未进行过任何 Android 编程。我突然需要一款小型应用，这将是一次完美的学习体验。从小处着手，我遇到了 App Inventor 以及该平台的所有变体。经过一番研究，我得出结论，这将是一个不错的...
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
...
关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
...络通信的机制，这属于计算机网络这块的东西，与实际的编程没有太大的关联，这里就不深入说明了，有兴趣的可以问度娘。而从程序的角度来看，这样的理解更合适，
socket起源于Unix，而Unix/Linux基本哲学之一就是“一切皆文...
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...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...对地址。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...
转：postfix安装Q&A - 更多技术 - 清泛网 - 专注C/C++及内核技术
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按照Postfix+Cyrus-IMAP+Cyrus-SASL+MySQL+IMP（王兴宇的）完全指南进行到了步骤8.5 ,用cyradm创建邮箱,可是却出现了如下错误:
[root@localhost bin]# cyradm --user cyrus localhost
Can't load '/usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi/auto/Cyrus/IMAP/IMA...
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
... a little for my own project, here is what I do using LifeCycle. I code in Kotlin.
val hostActivity: AppCompatActivity? = null // the activity to host fragments. It's value should be properly initialized.
fun dispatchFragment(frag: Fragment) {
hostActivity?.let {
if(it.lifecyclecurrent...