How to dynamically generate code in Hongmeng development Hvigor plug-in

The steps to dynamically generate code using the Hvigor plug-in are as follows: Create an Hvigor plug-in project. Create a code template and add content that generates the code dynamically. Use code templates in Hvigor and specify parameters using expressions. The dynamically generated code will be executed at runtime.

How to dynamically generate code operation for Hvigor plug-in for Hongmeng Development

1. Create a Hvigor plug-in project

1. Open HarmonyOS Studio and create a new project.
2. Select the template as "Hvigor Plugin Project".
3. Enter the project name and path.
4. Click the Create button.

2. Generate code templates

1. In Project Explorer, right-click the "resources" folder and select New > "Hvigor Template".
2. Enter a template name, for example "MyTemplate".
3. Select the code language (C or JavaScript) to generate.
4. Click the Create button.

3. Custom code templates

1. In the code template file, add the code content to be generated dynamically.
2. Use the Hvigor syntax to define variables and expressions.
3. Save the code template.

4. Use code templates in Hvigor

1. In the Hvigor editor, write a scene or component file.
2. Insert the code template to the location where you need to generate the code dynamically.
3. Use the Hvigor expression to specify the parameters of the code template.

V. Example

Here is a simple example of dynamically generating text controls using code templates in a scene file:

<code class="hvigor">import { loadTemplate } from '@honghu/hvigor-plugin'; let textTemplate = await loadTemplate('MyTemplate'); let textCtrl = textTemplate.create({ text: 'Hello Hvigor!' }); this.addChild(textCtrl);</code>

6. Things to note

• The Hvigor plugin can generate JavaScript or C code.
• The dynamically generated code will be executed at runtime.
• You can use the Hvigor expression to dynamically specify the parameters of the code template.

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