HarmonyOS 如何使用gzip解压文件？

示例参考如下：

import { zlib } from '@kit.BasicServicesKit'
import { util } from '@kit.ArkTS'
import { common, Want } from '@kit.AbilityKit'

@Entry
@Component
struct TextInputExample {
  async readGzFile(inFile: string) {
    let gzip = zlib.createGZipSync();
    await gzip.gzopen(inFile, "rb");
    let endStatus = 0;
    do {
      let readBuf = new ArrayBuffer(4096);
      let len = await gzip.gzread(readBuf);
      console.info("gzread: " + len);
      const decoder = util.TextDecoder.create('utf-8').decodeWithStream(new Uint8Array(readBuf));
      console.info("content: " + decoder.toString())
      endStatus = await gzip.gzeof();
      console.info("endStatus: " + endStatus)
    } while (endStatus != 1)
  }

  build() {
    Column() {
      Button('tempgzip').onClick(() => {
        // 关闭自定义键盘
        this.readGzFile(getContext(this).filesDir+"/"+'xxx.zip')
      })
      Button("系统通知设置页").onClick(()=>{
        let context = getContext(this) as common.UIAbilityContext;
        let want: Want = {
          bundleName: 'com.huawei.hmos.settings',
          abilityName: 'com.huawei.hmos.settings.MainAbility',
          uri: "location_manager_settings",//消息通知传uri:systemui_notification_settings, 蓝牙传uri:bluetooth_entry, Wi-Fi传uri:wifi_entry,定位权限传uri:location_manager_settings
          parameters: {
            pushParams: {
              bundleName:"com.example.myapplication"
            } // 应用包名
          }
        };
        console.log("want",want)
        context.startAbility(want)
      }).margin(10)
    }
  }
}