Huawei News
How to use HarmonyOS local emulator
At the Huawei Developer Conference (HDC 2021) in 2021, Huawei launched the local emulator for the first time with the release of DevEco Studio 3.0 Beta 1, which supports the simulated mobile phone category.
Huawei introduces the version evolution of the HarmonyOS local emulator and shared a tutorial about how to use the HarmonyOS local emulator.
1. The version evolution of the local emulator
On December 31, 2021, after a version of iterative optimization, the local simulator released with DevEco Studio 3.0 Beta2 added a new category of simulators for smart watches and smart screens.
The local simulator has customized its unique characteristics according to the characteristics of smart watches and smart screens.
Smart watch: Supports analog data injection of heart rate and steps, and supports the simulation of rotating the crown button.
Smart screen: supports the simulation of remote control.
Through the above introduction to the local emulator, it is not difficult to see that the local emulator has the following advantages:
It runs directly on the user’s local computer, does not require login authorization, has zero delay, and is not limited by the duration of use, and has the same performance as the real machine.
Provides a variety of general device simulations such as audio, battery, location, etc., providing developers with a running environment that approximates the real machine.
Provide product-specific simulations for Huawei devices, such as the rotation and pressing function keys of smart watches, and the remote control simulation of smart screens.
Supports Java, JS, C / C++ single-language debugging and JS+Java cross-language debugging capabilities, helping developers to debug applications more conveniently and efficiently.
2. Preparations before use
After understanding the local emulator, the following will focus on explaining how to use the local emulator. Before using the local emulator, you need to do the following preparations:
1. The local emulator is created and run on the local computer. Make sure that the local computer meets the following resource requirements:
Windows system: 8GB and above
macOS system: 8GB and above
Note: Running a local emulator on a virtual machine system is not supported, for example on an Ubuntu system, by installing a Windows virtual machine and then using the Windows system to install and run the emulator.
2. Check the version of DevEco Studio:
DevEco Studio V3.0 Beta1 and later versions only support local emulators. Currently, DevEco Studio V3.0 Beta2 is recommended.
3. Before using the local emulator, you need to install the corresponding image package. The specific operations are as follows:
(1) Open DevEco Studio and select “Files > Settings” (for macOS, select “DevEco Studio > Preferences”).
(2) As shown in Figure 3, on the “SDK Manager > HarmonyOS Legacy SDK” tab, select the image package under “Platforms”. Different image packages correspond to different device types. The System-image-phone image package corresponds to mobile phones, the System-image-tv image package corresponds to smart screens, and the System-image-wearable image package corresponds to smart watches.
(3) Click “Apply” to install.
4. Install the local emulator.
Select “Tools> Device Manager” in the menu bar, enter the interface shown in Figure 4, and click “Install” to install the local emulator.
3. Create and use a local emulator
After completing the above preparations, the next step is the focus of this article, teaching you how to create and use a local emulator.
1. (Optional) Customize the local emulator file storage path.
The default storage path for local emulator files is:
C:\Users\username\AppData\Local\Huawei\HarmonyOSEmulator\deployed . If the space on the C drive is tight, you can add a system environment variable HarmonyOS_HVD_HOME to customize the storage path to point to a directory with ample space.
2. Create a local emulator.
(1) Open DevEco Studio and select “Tools > Device Manager”. As shown in Figure 3, in the Local Emulator tab, click the New Emulator button in the lower right corner to start creating a local emulator.
(2) Select a device to create a local emulator.
As shown in Figure 4, DevEco Studio provides three devices, Huawei_Phone, Huawei_TV and Huawei_Wearable by default, corresponding to mobile phones, smart screens and smart watches respectively. According to the characteristics of Huawei devices, DevEco Studio presets parameters such as size and resolution for these three devices.
Developers can click the clone icon after New Hardware or Huawei_Phone to create a new mobile device and customize the device’s name, size, resolution, memory and other parameters.
The developer selects a device from the default three devices or the created mobile device to create a local emulator.
(3) After selecting the device, click Next to see the image information of the local emulator.
(4) Click Next again to check the configuration information of the local emulator, and modify the configuration information if necessary. After confirmation, click Finish to complete the creation of the local emulator.
After the creation is successful, you can see the newly created local emulator on the Local Emulator tab, as shown in Figure 8.
3. Run the local emulator.
(1) On the Local Emulator tab, click to start the local emulator.
(2) Click the button in the DevEco Studio toolbar to run the project, or use the default shortcut key Shift+F10 (Control+R for Mac) to run the project.
(3) DevEco Studio will start the compilation and construction of the application, and the application can be run on the local simulator after completion. Taking the mobile phone device as an example, the operation effect.
The mobile phone local simulator shown in Figure 8, in addition to being directly operated on the mobile phone screen like a real phone, the toolbar on the right provides convenient operation and rich data injection capabilities, including: volume adjustment, battery simulation, GPS simulation, Network simulation, virtual sensor simulation, etc.
The local simulator currently supports three device types: mobile phone, smart watch and smart screen. Figure 11 shows the same set of codes running on three devices: smart watch, mobile phone and smart screen at the same time.
4. Conclusion
This issue introduces the use of the local simulator, have you mastered it? Welcome to use and explore more rich features of the local emulator~
In the process of using the local emulator, if you encounter any problems, please refer to the FAQ: Local Emulator >>
If the problem is still not resolved, you can provide feedback through the Huawei Developer Forum .
(Via)
Huawei is getting ready to release a new super-thin phone called the Mate 70 Air. Some details about this phone have already been leaked online, and now a new picture has appeared showing what it looks like.
What the phone looks like
A promotional poster for the Huawei Mate 70 Air was leaked today. The phone looks similar to other phones in Huawei’s Mate 70 family, but it’s much thinner.
The back of the phone has a round camera area with Huawei’s XMAGE camera logo on it. The edges of the phone appear to be shiny and polished. The back cover has a textured surface, similar to another Huawei model called the Mate 70 Pro+.
What’s inside the phone
There isn’t much information available yet, but the Mate 70 Air might be a mid-priced phone. Early reports said it would have 12GB of memory and either 256GB or 512GB of storage space. However, newer information suggests it will actually have 16GB of memory.
The phone is expected to have a large 6.9-inch screen. It will also have a high-quality main camera.
Other features
Unlike Apple’s iPhone Air, the Huawei Mate 70 Air will have a slot for a physical SIM card. The phone will run on Huawei’s HarmonyOS 5.1 software. It will come in three colors: black, white, and gold.
Huawei is expected to launch this phone in November, around the same time as its Mate 80 series.
Tipster Digital Chat Station has confirmed that the Chinese tech giant Huawei will release new phones called the Mate 80 series in November. These new phones will have better designs, cameras, and speed.
The company is expected to compete with Apple’s new iPhone 17 phones. Huawei will make four different Mate 80 phones: the regular Mate 80, Mate 80 Pro, Mate 80 Pro+, and Mate 80 RS. Each phone will have different cameras. The regular Mate 80 will have a 50-megapixel camera.
The Pro version will have a bigger 50-megapixel camera. The Pro+ and RS models will have even bigger 50-megapixel cameras.
The Pro model might have a flat screen and face recognition. The Pro+ and RS models might have curved screens that bend more.
The best phone, the Mate 80 RS, might have a 6.9-inch screen with special technology.
This screen should be brighter, use less battery power, and last longer than normal phone screens. Huawei might also use strong titanium metal for the frame and special glass on the back. Inside the phones, there will be a new chip called the Kirin 9030. The battery might be bigger than 6000mAh and charge very fast – 100W with a wire and 80W without wires. The phones might work with 5G internet and satellite communication.
The phones will use Huawei’s own software called HarmonyOS. This might work better with other Huawei devices and have more AI features. Some people think these improvements will help Huawei compete better with Apple, especially in battery life, communication, and smart features.
A Chinese company called HiSilicon Semiconductor just changed who’s in charge. The old boss, Xu Zhijun, stepped down from his job as the legal representative and chairman. Now the company’s CEO, Gao Ji, is taking over these roles.
Xu has been working at Huawei since 1993 and still has other important jobs there – he’s a vice chairman and sometimes serves as the rotating chairman. Him leaving this position is probably just Huawei moving people around to different jobs within the company.
HiSilicon is completely owned by Huawei and makes computer chips. This change in leadership might mean Huawei is trying to make things work better.
HiSilicon started in October 2004 when Huawei took its computer chip design team and turned it into its own company. The main office is in Shenzhen, but they also have offices in Beijing, Shanghai, and other cities in China.