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Need android.permission.BLUETOOTH_SCAN permission for android.content....
...。
安卓12及以上设备,使用旧版本的BluetoothLE拓展导致的问题,临时解决是弄一个“蓝牙客户端”组件,请求蓝牙扫描权限就能临时绕过。
当然,使用最新版本的拓展,应该就没有问题了。最新的拓展已经支持安卓14:http...
【拍照图片处理】Attempt to invoke virtual method 'boolean android.grap...
在做图片识别App的时候,选择相册图片没有问题,拍照后图片就报错:
Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference
图片大致的处理流程是...
Service and Characteristic are not published by the connected device -...
Service and Characteristic are not published by the connected device,报错如下:
问题原因:硬件/蓝牙芯片问题导致的,比如A硬件测试好的,换了B硬件没有修改uuid,就出现这个报错。
由于B硬件没有发布这些特征,就会报这个错误。
Adding header for HttpURLConnection
...e use headers. I have to validate some credentials from android I am using php on xammp. how should i go for it. as i don't know how to write php code with headers
– Pankaj Nimgade
Feb 17 '15 at 8:00
...
Only variables should be passed by reference
...file_name) cannot be turned into a reference. This is a restriction in the PHP language, that probably exists for simplicity reasons.
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BLE(四)嗅探工具 - 创客硬件开发 - 清泛IT社区,为创新赋能!
...gle稳定,经常会抓不到后面数据通信的网络包,不过这一问题应该是可以通过优化算法得到解决的,但需要对官方的固件进行逆向或自己根据Nordic公司提供的BLE协议栈重写代码。。
优点:
价格便宜,USB Dongle淘宝价70...
Keep file in a Git repo, but don't track changes
...ut git status keep telling the file is modified
– rraallvv
Dec 21 '13 at 20:43
7
Yeah, this shoul...
CodeIgniter: How to get Controller, Action, URL information
...is->router->directory; Documentation: codeigniter.com/user_guide/installation/…
– cartalot
May 23 '16 at 21:55
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ListCtrl 重绘(Custom Draw) - C/C++ - 清泛网 - 专注C/C++及内核技术
... DLL的版本必须至少是4.71。但随着IE4 的发布,这已经不是问题了。(IE会夹带着这个DLL一起发布)
Custom Draw 基础
我将会尽我所能把Custom Draw的处理描述清楚,而不是简单的引用MSDN的文档。这些例子都需要你的程序有一个ListCtrl在...
PHP Sort a multidimensional array by element containing date
...compare")), so that usort() knows it's a class function/method. See also: php.net/manual/en/…
– Ferdinand Beyer
May 26 '10 at 16:26
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