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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 · App Inventor 2 中文网
...扫描后直接连接即可通信。
蓝牙App开发示例
demo参考界面如下：
扫描蓝牙设备，代码如下：
扫描完成后，设备列表展示到“列表显示框”组件中：
点击列表中的目标设备（一般硬件文档会有说明，名称会有特别的标...
Xamarin 2.0 vs Appcelerator Titanium vs PhoneGap [duplicate]
...ation work almost the same way on every platform.
If you are sharing the UI design across all platforms, it is hard to
make your design feel equally right in all cases. It might be better
to take the approach adopted by most games, using a design that is
distinctive to your app and make a vi...
AsyncTask Android example
...
Ok, you are trying to access the GUI via another thread. This, in the main, is not good practice.
The AsyncTask executes everything in doInBackground() inside of another thread, which does not have access to the GUI where your views are.
preExecute() and po...
TypeError: p.easing[this.easing] is not a function
...
You need to include jQueryUI for the extended easing options.
I think there may be an option to only include the easing in the download, or at least just the base library plus easing.
...
jquery-ui-dialog - How to hook into dialog close event
I am using the jquery-ui-dialog plugin
10 Answers
10
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Android: When should I use a Handler() and when should I use a Thread?
...o not explicitly start it in its own thread, then it will run on the main (UI) thread which may be noticeable as jittery or slow to respond interface by your users.
Interestingly when you are using a thread it is often useful to also use a Handler as a means of communication between the work threa...
An async/await example that causes a deadlock
...his is what happens, starting with the top-level method (Button1_Click for UI / MyController.Get for ASP.NET):
The top-level method calls GetJsonAsync (within the UI/ASP.NET context).
GetJsonAsync starts the REST request by calling HttpClient.GetStringAsync (still within the context).
Ge...
Could you explain STA and MTA?
...ns they do not handle their own synchronization. A common use of this is a UI component. So if another thread needs to interact with the object (such as pushing a button in a form) then the message is marshalled onto the STA thread. The windows forms message pumping system is an example of this.
If...
iOS UI系列 (二) ：使用多个StoryBoard - 更多技术 - 清泛网 - 专注C/C++及内核技术
iOS UI系列 (二) ：使用多个StoryBoard为什么要使用多个StoryBoardStoryBoard 给项目带了很大的方便，在一个视图里可以看到整个项目页面之间的关系，但是如果项目所有的页面都放...为什么要使用多个StoryBoard
StoryBoard 给项目带了很大...
Failed to instantiate module [$injector:unpr] Unknown provider: $routeProvider
...ute module is no longer part of the core angular.js file. If you are continuing to use $routeProvider then you will now need to include angular-route.js in your HTML:
<script src="angular.js">
<script src="angular-route.js">
API Reference
You also have to add ngRoute as a dependency ...