Programmer Group

I. overview Flutter's official version has been out for some time. As a beginner, I need to learn more. Recently, the flutter project has used the sharing function, but so far, there is no SDK for flutter sharing, such as Wechat, QQ, etc., which requires the native interaction between flutter and Android and ios. Here's just a ...

In the super-book Fabric block chain, the application can use the official Fabric-sdk-java development kit to access the chain code through the RPC protocol interface of the node. The java development kit encapsulates the GRPC code chain access protocol of the Fabric block chain, which helps focus developers on business logic. This articl E wil ...

How to develop a complete live broadcasting software, first of all, we need to collect the video and audio functions of the host, and then pass them into the streaming media server. This article mainly explains how to collect the video and audio functions of the host. At present, the front and rear cameras and focus cursors can be switched. Li ...

It should be updated all the time in the future, I think. First of all, I will not state the future trend of flutter. It is impossible for java to be replaced by other languages in the future. It will still be the dominant language in China. It's not very meaningful to learn or not to learn flutter personally. After debating whether or not the ...

Solution 1: Currency trading through ExinCore API Exincore A currency exchange API based on Mixin Network is provided. You can pay USDT to ExinCore. ExinCore will transfer your purchase of bitcoin to you at the lowest price and the most favorable transaction fee. Every currency transaction is anonymous and can be verified on the chain. Only yo ...

1. Web page authorization refers to the user clicking on the custom menu in the Wechat Public Number to obtain authorized user information in the open page, which can be used to achieve login-free. The following figure shows the address that needs to be opened by the user, where redirect_uri = points to the address that you really want to jum ...

Introducer Large data presentation is more and more widely used, and SDK supporting large data presentation has higher levels of echarts, highchart and D3. However, in the function of map presentation, most of them can only draw vector maps, but can not present a map with real effect. In view of this, this paper focuses on how to make a vector ...

iOS-SimpleBLEKit Simple rough tool classes for BLE on iOS. The process is simple and intuitive. Suitable for beginners. github address: https://github.com/billzbh/iOS-SimpleBLEKit I. demo effect iPad demo: iphone demo: Second, the background of writing this very SimpleBLE At work, there are new development tasks from time to ...

In general, a cloud function completes a single logical function, which is the same method as a class, as shown in the figure: However, limited free users can only use 20 cloud functions at most. To realize multiple complex functions in a single cloud function, it is necessary to distinguish them by parameters, which is not easy to read and m ...

First, when using the SMS authentication code of Mob platform, you need to register your account on the official website and obtain the developer's qualification to apply for AppKey and AppSecret. Register Mob Account Official Address: http://www.mob.com After registering, Click to enter the background. Enter the background and clic ...