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求助！关于拓展模块NotificationStyle的demo运行时报错的问题 - App Invent...
我使用的是demo程序进行测试，拓展程序链接：
https://www.fun123.cn/reference/extensions/NotificationStyle.html
结果无论点什么按键都会报错：
edu.mit.appinventor.aicompanion3: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be...
Async Procedures 拓展：异步任务拓展，异步处理耗时任务 - App Inventor 2...
Async ProcAsync Proc is an Extension which you can use to run a Procedure asynchronously. You no longer have to wait for a loop to finish and don’t worry about your app Crashing due to Android System thinking that your app crashed while doing intense processes.BLOCKS:EVENTS :
[color=var(--tertiar...
Async Image Loader Extension：异步图像加载器扩展 - App Inventor 2 拓展...
[size=15.008px][color=var(--tertiary)][color=var(--secondary)][color=var(--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. Thi...
SQLite 拓展查询数据表，带条件过滤 - App应用开发 - 清泛IT社区，为创新赋能！
SQLite 拓展导入，新建库、表等详见文档：https://www.fun123.cn/reference/extensions/SQLite.html
本文详细介绍一下，SQLite 的查询功能，以及带where条件的查询功能。
空表的情况下，先插入6条数据：
引入 TableView 拓展，用户展示查...
iOS Ad Hoc 和 App Store 区别 - App应用开发 - 清泛IT社区，为创新赋能！
前者：本地有限设备测试，要提前添加设备uuid，有效期7天。生成ipa，开发者权限打开的手机才能扫描下载安装。
后者：直接发布AppStore审核，无需添加设备，需要特殊密码。不生产ipa，直接走发布审核流程。（编译窗中的Short ...
- App应用开发 - 清泛IT社区，为创新赋能！
手势识别目前全网只有这一款：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://ai...
How can I use pointers in Java?
...ably meant to say was:
Tiger tony = null;
tony = third; // OK.
Improper Casting:
Lion leo = new Lion();
Tiger tony = (Tiger)leo; // Always illegal and caught by compiler.
Animal whatever = new Lion(); // Legal.
Tiger tony = (Tiger)whatever; // Illegal, just as in previous example.
Lion leo = (...
List comprehension on a nested list?
...t comprehension in this case. This is also applicable if you are trying to cast to either int or str. For small number of lists with less elements per list, the difference is negligible. For larger lists with more elements per list one might like to use map instead of list comprehension, but it tot...
Wait until file is unlocked in .NET
...a wrapper aroung a FileStream. While it is not a Stream itself, it can be cast to
/// one (keep in mind that this might throw an exception).
/// </summary>
public class SafeFileStream: IDisposable
{
#region Private Members
private Mutex m_mutex;
private Stream m_stream;
privat...
【HarmonyOS】编译、测试全流程 - HarmonyOS NEXT - 清泛IT社区，为创新赋能！
...文网
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