Shulou(Shulou.com)06/03 Report--

What are the important messages conveyed by HarmonyOS development HDD Shanghai Station? I believe many inexperienced people are at a loss about this. Therefore, this paper summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

On April 17th, the HarmonyOS developer Day, which is quite an annual summary of HarmonyOS, officially began in Shanghai.

During the event, Duan Meng, vice president of Huawei Consumer Business AI and Wisdom Panorama Business Department, made a speech on the latest progress of HarmonyOS ecological construction, with emphasis on meta-service. At the same time, many partners of HarmonyOS ecological construction were invited to share the innovative scenarios and applications based on HarmonyOS. As a guide for developers, Codelabs has become the key technical content in the first half of the process. The second half of HDD is accompanied by many new features of Beta3 version of HarmonyOS mobile phone developer: meta-service, new features of DevEco Studio 2.1Beta3, JS/Java UI, component library, distributed development samples in innovative scenarios, etc.

The editor specially sorted out the contents that should be highlighted in this HDD as follows:

Developer-related meta-services: distributed core competitiveness, greatly expanding the traffic entry

As a concrete embodiment of the distributed characteristics of HarmonyOS, meta-service has the characteristics of separable, separable, transferable, installation-free and multi-terminal deployment, which greatly expands the application scenarios of intelligent devices and reduces the dependence on hardware devices.

Separable and detachable, which means that a single service of a single application can be split out and transferred to other terminals. The convenience brought by this setting is huge, the back-end business only needs a single development, it can be applied to multiple devices through circulation, while other terminals do not even need to install the corresponding program. It not only saves the development cost, but also reduces the hardware threshold of the secondary equipment. As for the most uncomfortable multi-terminal adaptation problem for developers, HarmonyOS has prepared a set of mature solutions, which can be solved by adjusting only a few UI interface parameters. In the case of the navigation and boarding scene at the press conference, the interface between the car and the watch fits perfectly, and the volume of the main application reaches 10MB, while the secondary application is only a few dozen KB.

DevEco Studio 2.1Beta3: six features that form an important part of developer ecology

As the official IDE,DevEco Studio of HarmonyOS is also gradually improving, the newly released DevEco Studio 2.1Beta3 has become much more mature. All the IDE-related features introduced in the developer's Day have not been put online as of press time, but they have been put on the agenda and will soon be able to meet with the majority of developers.

Rich FA templates. At present, DevEco Studio has launched 30 + FA templates, which extract the layout of mainstream mobile application pages, can meet the vast majority of application needs, reduce the amount of code that needs to be developed, and developers do not need to re-create wheels.

Two-way preview. As the front-end layout of HarmonyOS main push, JS UI and Java UI support two-way preview of code and interface during debugging. This debugging method is similar to the experience of the WEB front end using the browser's developer tools to debug the interface. Locate the code, then the layout element is highlighted, and the layout element is located, and the corresponding code is highlighted, which facilitates the rapid positioning and debugging of the UI code.

Distributed testing and distributed simulation. This is one of the biggest pain points for developers. Distributed capability is one of the core competencies of HarmonyOS. The absence of local simulators and cloud terminal simulators supporting distributed debugging has prevented developers from exploring HarmonyOS for a period of time. Judging from the news from the press conference, both are on the agenda, and developers can look forward to it.

As a part of Shanghai HDD, Playground has a high exposure rate. This page implements the layout of "To-Do List" Demo, where developers can fully experience the ability of HarmonyOS to deploy on multiple ends. At present, this page is only an experiential editor and does not support complete HarmonyOS layout code. I believe Huawei is also exploring the possibility of an online editor.

Codelabs: a more practical developer toolbox

Programming labs play an important role in any mature developer ecosystem, and Huawei developer Codelabs has added a number of HarmonyOS-based examples that cover most of HarmonyOS's capabilities. Developers can use a variety of capabilities of HarmonyOS by learning and reproducing these examples. Codelabs essentially decomposes APP functions with complete functions. Developers can choose the necessary functional combinations according to their needs and develop complete applications according to the functional examples given in Codelabs.

Component library: an increasingly rich developer ammunition library

Yu Bo, a senior open source expert in Huawei's consumer business, mentioned in his speech that in the morning of HDD Shanghai, Huawei opened up 400 open source component libraries for developers to use, and mentioned that it will open source more than 1000 open source component libraries this year. Although there is still a big gap between the current number of open source libraries and Linux and Android, it is increasing steadily.

The leading trend manufacturer has entered the game and is optimistic about the prospect of HarmonyOS in the field of the Internet of things.

Traffic represents business opportunities, and new traffic entrances mean the emergence of new tracks. At present, the traffic structure of the mobile Internet has tended to be solidified, and the Matthew effect is obvious, so it is difficult to have new applications at the phenomenal level. Innovation within the existing architecture has been difficult to get the same amount of traffic. The dividend period of mobile Internet has passed, and the era of Internet of things is coming. New traffic entrances have spawned a new track. In the use scenario of the Internet of things, a soya-bean milk machine and a desk lamp can provide users with services that are more in line with their needs. The extreme matching of this scenario, demand, and service also brings higher traffic efficiency and more reasonable business closed-loop. It is bound to promote the reform of many industries.

QQ Browser, Supor and Red Rabbit, participants in HarmonyOS ecology, mentioned in the sharing that HarmonyOS helps them meet the needs of users during the operation of the product and the use of the equipment in the scene. The combination of HarmonyOS and QQ Browser gives it a shorter customer chain, a more overall multi-device experience, and lower product maintenance costs. On the other hand, Subor gets a way of interaction from richer traffic entrances, more diverse commercial scenarios, and closer to user intuition from HarmonyOS. Red Rabbit's concerns about a smoother user experience, higher initial connection rates, and more user retention are also found on HarmonyOS.

Time is tight and the task is heavy.

The domestic mobile phone market enters the stock market, the product homogenization is serious, and there is a lack of innovation ability in the existing framework. However, there will be iterations of new and old equipment in a market that is no longer dynamic, and Huawei needs to seize this opportunity.

As the core component of Huawei's "1x 8N" strategy, mobile phones play a heavy role in this strategy. Huawei has limited time, but the problems to be solved are very difficult: the problem of chip design and manufacture, the ecological layout of HarmonyOS (software and hardware partners, developer ecology, etc.), revenue and so on.

Can HarmonyOS take advantage of its advantages in the Internet of things to replicate the success of mobile phones? Although the answer is still not clear, but we are still full of expectations!

After reading the above, have you mastered the important information conveyed by HarmonyOS in developing HDD Shanghai Station? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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