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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...
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App日志及内置WebView的调试方法 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...;是应用的活动名。例如,如果您要查看名为“com.example.myapp”的应用中名为“MainActivity”的活动日志,您可以输入:adb logcat -v threadtime com.example.myapp/MainActivity复制代码这将显示实时更新的日志信息。要停止日志输出,请按Ctrl + C...
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【解决】App Inventor 2 中文版服务启动超时,问题排查 - App Inventor 2 ...

离线版启动失败,报超时错误: 可能性排查如下: 1、安装目录有中文,卸载重新安装,目录不要有中文即可,当然最好也不要有空格。这个逻辑也考虑过做到安装时自动检查,目前有技术细节没解决,后续会继续研究。 ...
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App Inventor Web浏览器嵌入HTML/JavaScript的路径问题 - App Inventor 2 ...

由于assets路径在AI伴侣和apk中不一样,且现在安卓权限收紧,试过了好几种路径都不能正常加载 assets 中的 html文件。Google到直接使用这个地址就可以了,完美!http://localhost/<NAME OF YOUR ASSETS HTML FILE>.html 测试aia见附件,可以...
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App Inventor 2 ECharts 拓展:画饼图 - App应用开发 - 清泛IT社区,为创新赋能!

...,请点击右侧“文档反馈”进行反馈! ECharts 拓展 使用AppInventor2布局进行展示的图表拓展,基于ECharts强大的js图表库开发,持续提供酷炫实用的图表展示。饼图 效果如下:设置透明背景属性后,效果如下:代码块如下:图表导...
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App Inventor 2 ECharts 拓展:画仪表图 - App应用开发 - 清泛IT社区,为创新赋能!

仪表图 效果如下:代码如下: Gauge(startAngle,endAngle,min,max,value)画仪表图。startAngle:起始角度; endAngle:结束角度; min:最小值; max:最大值; value:当前值。角度值参考如下: 来源:https://www.fun123.cn/reference/extensions/ECharts.h...
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How to create an HTTPS server in Node.js?

...leSync('test/fixtures/keys/agent2-cert.cert') }; // Create a service (the app object is just a callback). var app = express(); // Create an HTTP service. http.createServer(app).listen(80); // Create an HTTPS service identical to the HTTP service. https.createServer(options, app).listen(443); ...
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Developing for Android in Eclipse: R.java not regenerating

... site suggests: if you run a clean on the project it should regenerate all the generated Java files, namely R. ...and... In Eclipse, under the Project menu, is an option build automatically. That would help you build the R.java file everytime modifications are made. The Clean... optio...
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Clicking the back button twice to exit an activity

...ode uses System.currentTimeMillis(); to store the time onBackPressed() is called; private static final int TIME_INTERVAL = 2000; // # milliseconds, desired time passed between two back presses. private long mBackPressed; @Override public void onBackPressed() { if (mBackPressed + TIME_INTERVAL ...
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The 'Access-Control-Allow-Origin' header contains multiple values

...rties.Settings.Default.Cors, "", "")) as well as app.UseCors(CorsOptions.AllowAll); on the server. This results in two header entries. Just use the latter one and it works. share | improve this a...