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npm安装报错:rollbackFailedOptional verb npm-session - 更多技术 - 清泛...

.../淘宝源 注意:该配置跨用户不生效,切换用户需要再次设置。 可通过如下命令查看是否配置成功 npm config ls -l npm
https://bbs.tsingfun.com/thread-1530-1-1.html 

BLE 蓝牙模块添加延时控制开关 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

BLE 蓝牙模块如何添加延时控制开关,例如,在APP上点击一下,控制延时 10分钟、20分钟、1小时等多个选着时间控制程序开关灯,请指点,谢谢使用计时器组件,设置计时间隔,事件中给硬件发指令
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npm安装报错:rollbackFailedOptional verb npm-session - 更多技术 - 清泛...

.../淘宝源 注意:该配置跨用户不生效,切换用户需要再次设置。 可通过如下命令查看是否配置成功 npm config ls -l npm
https://bbs.tsingfun.com/thread-2518-1-1.html 

搜索不到ble设备 - App应用开发 - 清泛IT社区,为创新赋能!

使用AI伴侣能搜索到ble设备,但是安装apk后搜索不到,这是怎么回事呢大概率是权限问题,在手机设置将 app 相关权限都打开试试,尤其是发现设备等权限。
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apk安装报错:packageInfo is null? - 用户反馈 - 清泛IT社区,为创新赋能!

编译设置问题,包名中没有英文点.,已修复,加了包名验证提示。
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【解决】ChartData2D 二维图表组件报错 - 用户反馈 - 清泛IT社区,为创新赋能!

...图表组件,添加节点时越界报错。 原因:源码中看,设置颜色后会触发颜色列表越界,已源码修复。
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overlay two images in android to set an imageview

... // create canvas Bitmap.Config conf = Bitmap.Config.RGB_565; Bitmap canvasBitmap = Bitmap.createBitmap(MAX_WIDTH, MAX_HEIGHT, conf); Canvas canvas = new Canvas(canvasBitmap); canvas.drawColor(Color.WHITE); // if height and width...
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Draw in Canvas by finger, Android

...dw, oldh); mBitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); mCanvas = new Canvas(mBitmap); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); canvas.drawBitmap( mBitmap, 0, 0, mBitmapPaint);...
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How to add a search box with icon to the navbar in Bootstrap 3?

... <button class="btn btn-default" style="background: rgb(72, 166, 72);" type="submit"><i class="glyphicon glyphicon-search"></i></button> </div> </div> </div> ...
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What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?

...ns like map, fold, zipWith, traverse ... support for various color spaces: RGB, HSI, gray scale, Bi-tonal, Complex, etc. common image processing functionality: Binary morphology Convolution Interpolation Fourier transform Histogram plotting etc. Ability to treat pixels and images as regular numbe...