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https://www.fun123.cn/reference/other/media.html 

访问图像和声音 · App Inventor 2 中文网

... SDCard 上),确保指定完整的文件名,包括“mp3”。 Android系统还包括另一种将SDCard文件设计为URL的方法。 在这里,你可以使用 file:///sdcard 作为文件名前缀,并对特殊字符使用“URL 编码”。 例如,空格是“%20”。 因此,你...
https://puravidaapps.com/table.php 

App Inventor Tutorials and Examples: Dynamic Table Layout | Pura Vida Apps

...s and/or columns! Note: there seems to be an issue with the new Android System Webview update on some devices. See Boban's tip here how to solve it. Thank you Boban! You also might be interested in my editable(!) dynamic table layout example! New in Versio...
https://bbs.tsingfun.com/thread-1499-1-1.html 

拓展开发:@UsesPermissions(permissionNames 多个权限怎么写? - App Inve...

这样就行,逗号分开: @UsesPermissions(permissionNames = "android.permission.INTERNET, android.permission.RECORD_AUDIO, android.permission.CAMERA")
https://bbs.tsingfun.com/thread-1633-1-1.html 

TaifunFlashlight 手电筒/闪光灯拓展 - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

一个用于打开/关闭手电筒的扩展插件,所需要的权限: android.permission.CAMERA(注:拍摄照片和视频) android.permission.FLASHLIGHT(注:控制手电筒) 要至少11级的API(即Android 3.0.0以上) 属性 返回设备是否有闪光灯 过程 ...
https://bbs.tsingfun.com/thread-2102-1-1.html 

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...

...还在写  为什么现在app出现运行故障 弹出来:Need android.permission.BLUETOOTH_SCAN permission for android.content.AttributionSource@d5ca151a: GattService registerScanner 注意: 5秒钟后将报告另一条错误信息。liangzhi123 发表于 2024-12-06 16:04 这个还...
https://bbs.tsingfun.com/thread-2529-1-1.html 

MIT已发布v2.76版本:支持iOS编译,苹果版App终于来了,中文网已完成升级!...

...待升级的重要更新: 1、iOS苹果版App编译支持 beta版 2、Android SDK由 34 升级到 35,支持安卓15 3、日志的控制台展示 4、全新的颜色选择器 5、AAR包支持 ------------------ 2025/08/24---------------------- 中文网已完成v2.76版本升级。...
https://bbs.tsingfun.com/thread-2721-1-1.html 

MIT于2026元旦已发布v2.77版本:更新非常有限,lamda 表达式(匿名函数)缺...

...试上线。 ------MIT------ 这是一个组件版本更新,新的 Android Companion 2.77 版本: 非组件版本更新内容: 添加 @UsesFeatures 注解以更新 Android 清单文件 (@JEWEL) 添加一个标志以强制显示启动画面(仅用于测试部署) 添加对教师...
https://stackoverflow.com/ques... 

Long Press in JavaScript?

...n phones, they often have their own default longpress behaviour (chrome on android, for example, shows a modal menu with various options when you long press a link). I didn't have a lot of luck preventing this, and to be honest interfering with browser default behaviour is a hiding to nothing anyway...
https://stackoverflow.com/ques... 

Configure Flask dev server to be visible across the network

...n app in dev mode ( http://localhost:5000 ), I cannot access it from other machines on the network (with http://[dev-host-ip]:5000 ). With Rails in dev mode, for example, it works fine. I couldn't find any docs regarding the Flask dev server configuration. Any idea what should be configured to enab...
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How accurate is python's time.sleep()?

...update rates. At the time I was doing this I was also running the code on Mac and Windows, so I probably got confused. I know windows XP at least has a tick rate of about 10ms. – Joseph Lisee Aug 11 '10 at 15:55 ...