Programmer Think

Raspberry pie is a necessary toy for many hands-on people. In this section, let's take out raspberry pie, connect it to Microsoft cloud Azure's IoT Hub in 30 minutes, and then visualize the temperature and humidity curve. More content, please pay attention to the public number "cloud computing actual combat". For the complete operat ...

Bluetooth connection of mobile phone uses Jiabo printer (ZH380) Bluetooth privileges <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> <uses-permission android:name="android.permission.BLUETOOTH" /> android 6.0 and above also need to add location permission <uses-permission android:nam ...

Integrate: 1: first, go to his official website to register an account of the alliance. Transfer gate: Official website of the Alliance Then use it now to create a new app: the name of the app you created is the same as the name on your project. Be sure to write the package name correctly. The package name is the packag ...

The temporal Query function is to retrieve the time information stored in the element table through the time range set by the user, so as to obtain the operation of elements in a specific temporal range. In this case, taking typhoon data as an example, the temporal Query conditions are constructed through the set time range, th ...

I. Preface Camera management is the core of the database in the whole system. Only when the camera information is added can it be loaded and a tree list be generated. The field content of the camera table information has been changed several times and may need to be modified later. At present, the camera table information mainly includes camera ...

After sharesdk integration, I encountered a problem sharing to wechat and friends circle. When I clicked back, I found that I couldn't go back to the app private void sharedToThirdPlatform() { OnekeyShare oks = new OnekeyShare(); //Close sso authorization oks.disableSSOWhenAuthorize(); // Ti ...

The company used it when developing the app, but the official documents of Youmeng are vague; roughly sort out the processing process from integrating Youmeng push to opening push message; if there is any inappropriate processing, please correct!!!! Integrated push function The alliance pushes the official document react nati ...

I've created some custom elements that I want to programmatically place in the top right corner (top edge n pixels, right edge m pixels). Therefore, I need to get the screen width and height, and then set the position: int px = screenWidth - m; int py = screenHeight - n; How do I get screen width and screen height in the main activity? ...

Copyright notice: This is the original article of the blogger. It can't be reproduced without the permission of the blogger. https://blog.csdn.net/u010046908/article/details/50610297 How to use Android Bluetooth 2.0 1.Android operation Bluetooth 2.0 use process (1) fi ...

In the last article, we shared how to use the cloud function to develop hazelnut SMS( http://smsow.zhenzikj.com)SDK, due to the limitation of wechat on the number of unpaid cloud functions, this method has defects. After improvement, TCB router is used as the route, so only one cloud function needs to be integratedDownload sdk and demo: http:/ ...