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https://bbs.tsingfun.com/thread-1794-1-1.html 

APP INVENTOR硬件交互学习教程07——多个参数上报 - 创客硬件开发 - 清泛IT...

... =  7; const int bluetoothPin = 13; // 变量定义 int inByte=0;   //接收参数 #define TRUE 1 #define FALSE 0 void setup() {   // 配置输出引脚   pinMode(ledPin1, OUTPUT);   pinMode(ledPin2, OUTPUT);   pinMode(ledPin3, OUTPUT);...
https://bbs.tsingfun.com/thread-1845-1-1.html 

App Inventor 2 做个计算器怎手机运行后报错 - App应用开发 - 清泛IT社区,为创新赋能!

...机运行后报错 什么原因呢?根据报错字面,2.63...除以 0 异常,一定要对除数进行非零的判断,使用数学代码块=0 判断。当输入框没有输入内容时,数学运算会转成 0 处理,因此就会出现除零异常。要先用文本块是否为空进行判...
https://bbs.tsingfun.com/thread-2291-1-1.html 

HAXM 安装/启动失败? - App Inventor 2 离线版 - 清泛IT社区,为创新赋能!

报错如下: emulator: Android emulator version 30.3.5.0 (build_id 7033400) (CL:N/A) 127.0.0.1 - - [01/Apr/2025 16:55:37] "GET /echeck/ HTTP/1.1" 200 39 handleCpuAcceleration: feature check for hvf emulator: ERROR: x86_64 emulation currently requires hardware acceleration! CPU accel...
https://bbs.tsingfun.com/thread-2374-1-1.html 

求助!关于拓展模块NotificationStyle的demo运行时报错的问题 - App Invent...

...写的:PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0); 修改为:PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_IMMUTABLE); ------------- 正在修改,测试中,测试通过会发布我们自己的版本...
https://bbs.tsingfun.com/thread-2442-1-1.html 

KIO4_Gradient 拓展:布局中的颜色渐变 - App Inventor 2 中文网 - 清泛IT...

...nce/android/graphics/drawable/GradientDrawable.Orientation.html- 类型: 0 到 3 之间的整数:LINEAR_GRADIENT、RADIAL_GRADIENT或SWEEP_GRADIENThttps://developer.android.com/reference/android/graphics/drawable/GradientDrawable.html#setGradientType(int)- 形状: 0 到 3 之间的整数:LIN...
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Custom checkbox image android

... 10 Answers 10 Active ...
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pull out p-values and r-squared from a linear regression

... attributes(p) <- NULL return(p) } > lmp(fit) [1] 1.622665e-05 In the case of a simple regression with one predictor, the model p-value and the p-value for the coefficient will be the same. Coefficient p-values: If you have more than one predictor, then the above will return the m...
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Properly close mongoose's connection once you're done

... 207 You can close the connection with mongoose.connection.close() ...
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Add spaces before Capital Letters

... 204 The regexes will work fine (I even voted up Martin Browns answer), but they are expensive (and ...
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How do I record audio on iPhone with AVAudioRecorder?

Now that iPhone 3.0 SDK is public, I think I can ask this question for those of you that have already been playing with the 3.0 SDK. I want to record audio in my application, but I want to use AVAudioRecorder and not the older way of recording like the example SpeakHere shows. There are not any...