大约有 800 项符合查询结果(耗时:0.0199秒) [XML]
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?
...
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
...
Storing R.drawable IDs in XML array
...
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
...
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...
【AI2+AI】人工智能舞姿识别App - 创客硬件开发 - 清泛IT社区,为创新赋能!
...外观和感觉。但不要重命名组件,因为本教程会使用操作指南中给出的名称。SwapCameraButton按钮可以根据用户的意愿切换前置或后置摄像头。CanvasLiveButton将画布背景从纯黑色切换到实时摄像机视图。ResetButton设置Dance Score得分为零...
How to test that no exception is thrown?
...
Java 8 makes this a lot easier, and Kotlin/Scala doubly so.
We can write a little utility class
class MyAssertions{
public static void assertDoesNotThrow(FailingRunnable action){
try{
action.run()
}
catch(Exception ex){
throw new Err...
将Linux代码移植到Windows的简单方法 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...程序。调试可以用GDB或者Insight。如果习惯Windows 平台下面编程,可以使用Insight,这是一个TCL/TK脚本程序,它提供了一个Windows界面以方便用户调试程序,不过Insight最终还是调用GDB。在这里具体调试就不细说明了。
五:多平台代...
2015年硅谷最火的高科技创业公司都有哪些 - 资讯 - 清泛网 - 专注C/C++及内核技术
...大家感兴趣可以去查询。
接着说MapReduce,首先是个编程范式,它的思想是对批量处理的任务,分成两个阶段,所谓的Map阶段就是把数据生成key, value pair, 再排序,中间有一步叫shuffle,把同样的key运输到同一个reducer上面去...