大约有 44,000 项符合查询结果（耗时：0.0622秒） [XML]
Invoke: no method named `…………’ in class java.lang.Boolean - App I...
可能原因1：可能是因为使用了“计时器”组件，而它一直在计时，且触发计时任务导致的。删除不再使用的计时器组件即可解决。
I've deleted the "clock" which was not even in the blocks present...and it works... Maybe it helps someone.
来自...
蓝牙接收的数据怎么一行一行更新显示和，类似图2这样的 - App应用开发 - 清...
在做BLE蓝牙显示app。蓝牙端一个数据一个数据的发送，但是显示的时候后一个会覆盖上一个 无法将接收的数据全部罗列出来，而且显示的还有问题，有时候显示一个，有时候显示3个数据。求解！！使用列表显示框组件，详见文...
【教学】AppInventor2人工智能应用：Personal Audio Classifier 自行训练神...
繁体中文原文：https://blog.cavedu.com/2020/04/ ... nalaudioclassifier/
AI 行動化（AI on mobile）呼應了人類生活早已離不開手機的事實，另一方面，手機處理晶片速度一日千里，今天跑不動的東西，很快就不再是問題。對於 AI 這個議題，...
用户反馈文本输入框光标问题 - 用户反馈 - 清泛IT社区，为创新赋能！
还有一个问题，我用老巫婆那个网站 和现在的同样工程对比如下 ： 1、老巫婆光标会自动退出 2、老巫婆串口通信350MS一次 不会死机 现在的1000MS 才不会死机.
感觉使用起来， 没有他那个网站好...
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...
How do you remove duplicates from a list whilst preserving order?
...
Converting to some custom kind of dict just to take keys? Just another crutch.
– Nakilon
Jun 14 '13 at 13:40
...
List comprehension on a nested list?
...
Here is how to convert nested for loop to nested list comprehension:
Here is how nested list comprehension works:
l a b c d e f
↓ ↓ ↓ ↓ ↓ ↓ ↓
In [1]: l = [ [ [ [ [ [ 1 ] ] ] ] ] ]
In [2]: for a in l...
Create list of single item repeated N times
...t that can be used to create a list if you wish! Let's try that again, but converting to a list:
>>> timeit.timeit('list(itertools.repeat(0, 10))', 'import itertools', number = 1000000)
1.7508119747063233
So if you want a list, use [e] * n. If you want to generate the elements lazily, us...