CircularlmageBar cannot accept the arguments: , [com.google.appinventor .components.runtime .Image@f3f6c0d], I''],.... 原因：温度数据为空导致的，加一个非空判断即可解决问题。

我在看一本书。一个记事本项目，其中有个组件叫Notifier。在界面设计里找不到。用户界面 -> 对话框组件，文档见：https://www.fun123.cn/reference/ ... rface.html#Notifier

可以的。screen1 属性可以设置： 更多参考：https://www.fun123.cn/reference/creative/fullscreen.html

需要拼接 json 文本通过 mqtt 发送，原理是利用字典的特性，它天生就是 json 的一种表现，打印出来就是 json 格式文本，拼接方式如下： 使用 创建字典 代码块，默认只有 2 个插槽，表面上看起来只能放 2 组数据，但是它是...

...款：GestureDetect Extension (List and Swipe Images) https://community.appinventor.mi ... swipe-images/144070 但是测试下来，可能不太完善，拓展不够成熟。 以下2款貌似不支持手势滑动，但可以轮换播放图片： https://aix.colintree.cn/zh/extensions/ColinTr...

用户反馈说我们有可控制视频录制的这款拓展，实际上是 AI 幻觉说我们有，当时是真的没有。但是，我们要让 AI 幻觉变成现实{:8_368:}，这款拓展已经编码完成，正在测试中 附上用户的长长的感谢信： 标题： BackgroundVideoRecorde...

... message:@"You must be connected to the internet to use this app." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert show]; [alert release]; ...

My app has a certain piece of functionality that will only work on a device where root is available. Rather than having this feature fail when it is used (and then show an appropriate error message to the user), I'd prefer an ability to silently check if root is available first, and if not,hide the ...

...oads the current page, and the one to the left and right. If you put your app into the background, the fragments that have been added to the fragment manager are saved automatically. Even if your app is killed, this information is restored when you relaunch your app. Now consider that you have vie...

...lled everything and created an AVD for the android version, and everything appears correct, but when I run it, I get this output: ...