harmony 鸿蒙File Organization

2022-12-13
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File Organization

Directory Structure

Below is the typical directory structure (entry/src/main/js/Widget) of a JS service widget.

├─widget
│   ├─common
│   │   └─widget.png
│   ├─i18n
│   │   ├─en-US.json
│   │   └─zh-CN.json
│   └─pages
│       └─index
│           ├─index.css
│           ├─index.hml
│           └─index.json

Functions of the files are as follows:

.hml files describe the widget template layout.
.css files describe the page style.
.json files define variables and action events used for a service widget.

Functions of the folders are as follows:

The pages folder stores template pages.
The common folder stores public resource files, such as images.
The i18n folder stores resources in different languages, for example, UI strings and image paths.

File Access Rules

Application resources can be accessed via an absolute or relative path. In this development framework, an absolute path starts with a slash (/), and a relative path starts with ./ or ../. The rules are as follows:

To reference a code file, use a relative path, for example, ../common/style.css.
To reference a resource file, use an absolute path, for example, /common/test.png.
Store code files and resource files in the common directory and access them in the required fashion.
In a .css file, use the url() function to create a URL, for example, url(/common/test.png).

NOTE

When code file A needs to reference code file B:

If code files A and B are in the same directory, you can use either a relative or absolute path in code file B to reference resource files.

If code files A and B are in different directories, you must use an absolute path in code file B to reference resource files. The reason is that the directory of code file B changes during Webpack packaging.

When defining data in a .json file, use absolute paths for resource files.

Configuration Files

If you are developing a widget in the FA model, configure the config.json file. For details, see Configuring the Widget Configuration File in FA Model.

If you are developing a widget in the stage model, configure ExtensionAbility under extensionAbilities in the module.json5 file. For details, see Configuring the Widget Configuration File in Stage Model.