原因： 今日升级了新特性，使用 AI 伴侣测试 app 时如果发生错误，现在可以一键定位到哪一行代码块位置，非常方便定位问题。网站已升级，需要配套 AI 伴侣一起升级。 解决方法： 升级 AI 伴侣即可：帮助菜单，ai 伴侣...

... I totally agree. I have seen a monitoring application which was initiating many (a few thousands short lived connections every X seconds), and it had probem to scale bigger (a thousand connection more). I don't know why, but the applicatoin was non responsive. Someon...

....activityname " youre launch activity may be in different package, than in app pakagename – UdayaLakmal Nov 21 '16 at 8:51 add a comment  |  ...

Q：AppInventor2画布的坐标原点在哪里，是中心吗？ A：画布的左上边缘是 0,0 原点。

...eral use cases. Synchronize changes. Your change-log (or delta history) approach looks good for this. Clients send their deltas to the server; server consolidates and distributes the deltas to the clients. This is the typical case. Databases call this "transaction replication". Client has lost...

... You can generate this warning by presenting the modal vc before the app is done initializing. i.e. Start a tabbed application template app and present a modal vc on top of self.tabBarController as the last line in application:didFinishLaunching. Warning appears. Solution: let the stack unw...

...entralizes authentication. Use it if you want all your (probably internal) applications to ask users to login to a single server (all applications are configured to point to a single CAS server). OpenID decentralizes authentication. Use it if you want your application to accept users login to whate...

...己定义一个文本变量把每次的文本拼接上。 开发计算器App的话，通常做法定义一个前值，一个后值，当按下符号后进行切换，最终前值、符号、后值就能计算最终结果了。

...r(--secondary-high)]512×512 8.95 KB AsyncImage An extension for MIT App Inventor 2. Simple asynchronous image loader extension to load image asynchronously in an image or arrangement component with circular image. This is a simple, light weight and fast async image loader since it does not...

... 教程首页 App Inventor 2 教程 心情记录 准备开始 实践型项目教程 心情记录 用表情按钮记录开心、生气和...