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Android getting value from selected radiobutton

... Just a small correction, a very small one rather, you have declared 'rg' twice. It wont make a difference at all, just makes the code more readable. – SanVed Aug 19 '18 at 18:06 ...
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Iterate over model instance field names and values in template

...f that instance in table format, with the field name (verbose_name specifically if specified on the field) in the first column and the value of that field in the second column. ...
https://bbs.tsingfun.com/thread-1511-1-1.html 

The operation is list empty? cannot accept the arguments: , ["&qu...

...本身就是空的情况,空对象无法调用它的任何方法,导致App崩溃。 多加一个判断(文本.是否为空),可以避免这类问题: [/hide] {:8_389:}The arguments,[“xxx“], [false], [0]
https://bbs.tsingfun.com/thread-1535-1-1.html 

您好,如果我想设置如果到某个时间就显示文字,怎么做 - App Inventor 2 中...

...时间和格式化,参考:https://bbs.tsingfun.com/thread-1534-1-1.htmlApp Inventor 2  发表于 2024-03-22 19:09 获取当前时间和格式化,参考:https://bbs.tsingfun.com/forum.php?mod=viewthread&tid=1534&fromguid=hot& ... 感觉还是不是很懂App Inventor 2&n...
https://bbs.tsingfun.com/thread-1844-1-1.html 

BLE &APP交互学习教程01——下发指令 - 创客硬件开发 - 清泛IT社区,为创新赋能!

BLE模块性价比高,无需配对就可以连接使用,从本节开始,我们着重来学习使用BLE控制和显示。 1.界面设计 2.逻辑设计 3.APP工程 4.下位机工程 {:8_381:}
https://bbs.tsingfun.com/thread-1966-1-1.html 

我想使用照相机组件显示出错 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...pt the arguments: , ["file:///storage/emulated/0/Android/data/edu.mit.appinventor.aicompanion3/files/Pictures/app_inventor_1727434191034.jpg"] 注意: 5秒钟后将报告另一条错误信息。 源码在这里 你好,根据报错信息,你把路径文本值设置给...
https://bbs.tsingfun.com/thread-2008-1-1.html 

如何更改启动屏幕 - App应用开发 - 清泛IT社区,为创新赋能!

...这个新建的login是在screen1后面,如何调换它们的位置,让APP启动时,先从login启动?无法指定启动的屏幕,默认就是特定的Screen1。两种思路: 1、使用“复制屏幕”功能将Screen1复制一份为主屏幕,原来的Screen1改为登录页。 2、S...
https://bbs.tsingfun.com/thread-2348-1-1.html 

求助各位大佬! - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...确显示识别的信息。显示完后一直显示报错警告框,然后app就卡住了{:8_372:}请提供一下报错相关的截图,这个报错信息更为关键!同:https://bbs.tsingfun.com/thread-2349-1-1.html
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How to elegantly deal with timezones

...t is that inside the DB, date/times are stored in UTC. When on the server, all date/times should be dealt with in UTC. However, I see three problems that I'm trying to overcome: ...
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Purpose of Django setting ‘SECRET_KEY’

... Why didn't they call it a salt then? ;) – datenwolf Jun 15 '13 at 18:00 30 ...