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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...是被发送到拓扑的，而不是发送给特定的终端节点。重新调用哪个与特定商务逻辑紧密相连的拓扑意味着当你发送消息给拓扑的时候，你基本上已经请求所提供的特定的服务，比如调整图像亮度大小。实际接收消息的终端节点是...
由12306.cn谈谈网站性能技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...以水平扩展了。但是异步的技术问题大概有这些，a）被调用方的结果返回，会涉及进程线程间通信的问题。b）如果程序需要回滚，回滚会有点复杂。c）异步通常都会伴随多线程多进程，并发的控制也相对麻烦一些。d）很多异...
Best practice: AsyncTask during orientation change
...ment to handle runtime configuration changes (as when the user rotates the screen) with setRetainInstance(true). A determinate (regularly updated) progress bar is also demonstrated.
The example is partly based on the official docs, Retaining an Object During a Configuration Change.
In this exampl...
Data structure: insert, remove, contains, get random element, all at O(1)
... It's interesting that I got this question on a Google phone screen and after some struggling stuck to the same solution. I screwed up an implementation a little bit and assigned to the second phone screen.
– Andrey Talnikov
Nov 10 '12 at 9:38
...
What exactly does the post method do?
... with Android widgets with
For instance, if you touch the a button on screen, the UI thread
dispatches the touch event to the widget which in turn sets its
pressed state and posts an invalidate request to the event queue. The
UI thread dequeues the request and notifies the widget to redra...
Fragment onCreateView and onActivityCreated called twice
...w.com/questions/23248789/…. If you use add instead of replace and rotate screen, you will have many fragments' onCreateView().
– CoolMind
Oct 16 '18 at 16:55
...
What are fixtures in programming?
...tform.Android)]
[TestFixture(Platform.iOS)]
public class TestLaunchScreen
{
IApp app;
Platform platform;
public Tests(Platform platform)
{
this.platform = platform;
}
[SetUp]
public void BeforeEachTest()
{
...
Android ListView with different layouts for each row
...ut reference to reuse your item when it disappears and appears back on the screen. If you don't use this approach, every single time that your item appears on the screen Android OS will create a new one and causing your app to leak memory.
public class ViewHolder {
TextView text;
...
Understanding Fragment's setRetainInstance(boolean)
...ger and call setRetainInstance,all the Bitmaps are still there even if the screen orientation changes.
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How to implement Rate It feature in Android App
...h I see little evidence of this). Hassling users into rating - through nag screens - is likely to cause people to clear the nag through leaving a bad rating.
Adding the capability to directly rate an app has caused a slight decrease in the numerical ratings for my free version, and a slight increas...