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AppInventor如何扫二维码?扫码结果如何与Web进行交互? - App Inventor 2 ...
...怎么实现?
[hide]A:使用“条码扫描器”组件:https://www.fun123.cn/reference/ ... html#BarcodeScanner
属性“使用外部扫描”设置为假,其他没有啥要注意的。就调用一下扫描方法,就能使用摄像头扫二维码。
Q:扫...
QRCodeGenerator 拓展使用后,apk编译失败 - 用户反馈 - 清泛IT社区,为创新赋能!
...zxing库,解决apk编译问题。
拓展开发中。。
https://www.fun123.cn/reference/ ... RCodeGenerator.html
原版来自:
https://community.appinventor.mi ... -extension/47908/34
自研版已上线,编译apk正常:https://www.fun123.cn/reference/extensions/QRCodeGenerator.html
ImagePicker 图像选择器如何一次选择多张图片? - App Inventor 2 中文网 -...
https://www.fun123.cn/reference/components/media.html#ImagePicker
根据文档最新版本,是可以选多张图片的,但是实际测试下来,一次只能选一张,可能跟安卓版本及手机有关,可能有的手机可以选择多张,纯猜测未验证。英文社区也有相关...
App Inventor接入Supabase:开源免费的后端新选择 - App Inventor 2 拓展 -...
...通知App文件存储云端文件上传下载管理云函数服务端Edge Functions
环境搭建:快速上手
1. 注册Supabase账号
访问 supabase.com 注册账号。免费计划支持2个并行项目,每个项目包含500MB数据库空间和5GB带宽。
2. 创建项目
在Supaba...
5分钟了解 App Inventor 2:不会写代码,也能做出自己的 App - App应用开发...
...过5分钟。
中文资源在哪?
App Inventor 2 中文网(www.fun123.cn)提供了:
1. 完整的中文文档:所有组件和积木块都有中文说明
2. 离线版:断网也能用,适合学校机房和培训班
3. 扩展组件:MQTT、Supabase、自定义通知等进阶组...
App Inventor 2 鸿蒙先行版:AppInventor 从此支持全平台,不再安卓专属 - ...
大家好,这里是 App Inventor 2 中文网(fun123.cn)。
今天想和大家聊一个很多人关心、但我们一直比较谨慎的话题——App Inventor 2 的鸿蒙(HarmonyOS NEXT)版本。
————————————————
先说结论
鸿蒙先行版已...
Vertical (rotated) label in Android
...vate var padTop = 0
private var layout1: Layout? = null
override fun setText(text: CharSequence, type: BufferType) {
super.setText(text, type)
layout1 = null
}
private fun makeLayout(): Layout {
if (layout1 == null) {
metrics.width = height
...
std::function and std::bind: what are they, and when should they be used?
I know what functors are and when to use them with std algorithms, but I haven't understood what Stroustrup says about them in the C++11 FAQ .
...
Why is it wrong to use std::auto_ptr with standard containers?
...se of move semantics (its specification requires rvalue references), so it fundamentally requires C++11. However (and related) the C++11 Standard no longer says that an STL element type must be "copy-constructible" and "assignable"; being move-constructible and move-assignable suffices. Indeed uniqu...
How to POST raw whole JSON in the body of a Retrofit request?
...nvertion in the rest of your application code:
interface ServiceApi {
fun login(username: String, password: String) =
jsonLogin(createJsonRequestBody(
"username" to username, "password" to password))
@POST("/api/login")
fun jsonLogin(@Body params: RequestBod...
