harmony 鸿蒙Globalization Subsystem Changelog

2023-06-24
浏览 (447)

Globalization Subsystem Changelog

cl.resourceManager.1 Change in the Meaning of the Return Value for the API Used to Obtain the rawfile Descriptor

Changed the meaning of the return value for the API used to obtain the rawfile descriptor after the non-decompression feature is added in this version. The change in the meaning of the return value, namely, descriptor: RawFileDescriptor {fd, offset, length}, is described as follows:

Before change:

fd: file descriptor for accessing the rawfile.

offset: offset for accessing the rawfile. In this case, the value is 0.

length: size of the rawfile to access.

After change:

fd: file descriptor for accessing the HAP where the rawfile is located.

offset: offset of the accessed rawfile relative to the HAP.

length: size of the rawfile to access.

Change Impact

In versions earlier than 4.0.2.2, the rawfile can be accessed only through fd. In version 4.0.2.2 or later, the rawfile can be accessed only through {fd, offset, and length}.

Key API/Component Changes

Original API
getRawFd(path: string, callback: AsyncCallback<RawFileDescriptor>): void
getRawFd(path: string): Promise<RawFileDescriptor>
getRawFileDescriptor(path: string, callback: AsyncCallback<RawFileDescriptor>): void
getRawFileDescriptor(path: string): Promise<RawFileDescriptor>

Sample Code

The following is an example of calling the getRawFd API:

try {
    this.context.resourceManager.getRawFd("test.ogg", (error, value) => {
        if (error != null) {
            console.log(`callback getRawFd failed error code: ${error.code}, message: ${error.message}.`);
        } else {
            let fileDescriptor = {
                fd = value.fd,
                offset = value.offset,
                length = value.length
            }
            this.avPlayer.fdSrc(fileDescriptor); // Take the audio player as an example. When calling fdSrc, pass fileDescriptor in addition to fd.
        }
    });
  } catch (error) {
      console.error(`callback getRawFd failed, error code: ${error.code}, message: ${error.message}.`)
  };

cl.resourceManager.2 Addition of getStringSync and getStringByNameSync APIs

Added the getStringSync and getStringByNameSync APIs and error codes to obtain and format strings.

Bundle Name	API
ohos.resourceManager.d.ts	getStringSync(resId: number, …args: Array): string;
ohos.resourceManager.d.ts	getStringSync(resource: Resource, …args: Array): string;
ohos.resourceManager.d.ts	getStringByNameSync(resName: string, …args: Array): string;

Change Impact

In versions earlier than 4.0.6.2, only the values of string resources can be directly obtained. In 4.0.6.2 or later, the values of string resources can be formatted based on the input arguments for enhanced query.

The following error codes are added:

9001007 If the resource obtained by resId formatting error.

9001008 If the resource obtained by resName formatting error.

Sample Code

The following uses getStringSync as an example. Before the change, only example 1 is supported. After the change, both example 1 and example 2 are supported.

Example 1:
try {
  this.context.resourceManager.getStringSync($r('app.string.test').id);
} catch (error) {
  console.error(`getStringSync failed, error code: ${error.code}, message: ${error.message}.`)
}
Example 2:
try {
  this.context.resourceManager.getStringSync($r('app.string.test').id, "format string", 787, 98.78);
} catch (error) {
  console.error(`getStringSync failed, error code: ${error.code}, message: ${error.message}.`)
}

Adaptation Guide

For details, see the API reference.

API Reference

Error Codes