WantUtil, Want tool class
#harmony#harmonyos#arkts
桃花镇童长老

桃花镇童长老 @787107497

Joined:
Jun 20, 2025

WantUtil, Want tool class

Publish Date: Jun 29
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Introduction and description of harmony-utils

harmony-utils A HarmonyOS tool library with rich features and extremely easy to use, with the help of many practical tools, is committed to helping developers quickly build Hongmeng applications. Its encapsulated tools cover APP, device, screen, authorization, notification, inter-thread communication, pop-up frames, toast, biometric authentication, user preferences, taking photos, albums, scanning codes, files, logs, exception capture, characters, strings, numbers, collections, dates, random, base64, encryption, decryption, JSON and other functions, which can meet various development needs.

picker_utils It is a sub-store split by harmony-utils, including PickerUtil, PhotoHelper, and ScanUtil.

Download and install

ohpm i @pura/harmony-utils

ohpm i @pura/picker_utils

  //Global initialization method, initialized in the onCreate method of UIAbility AppUtil.init()
  onCreate(want: Want, launchParam: AbilityConstant.LaunchParam): void {
    AppUtil.init(this.context);
  }
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API methods and usage

toSetting jumps to the system settings page (used with the URI constants in WantUtil to jump to more settings pages) 
 WantUtil.toSetting(WantUtil.URI_BIOMETRICS_AND_PASSWORD); //跳转生物识别和密码
 WantUtil.toSetting(WantUtil.URI_ABOUT_DEVICE); //跳转关于本机界面
 WantUtil.toSetting(WantUtil.URI_SYSTEM_AND_UPDATES); //系统和更新
 WantUtil.toSetting(WantUtil.URI_DISPLAY); //显示和亮度
 WantUtil.toSetting(WantUtil.URI_ACCESSIBILITY_FEATURE); //辅助功能
 WantUtil.toSetting(WantUtil.URI_APPLICATION_AND_SERVICE); //应用与元服务
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toAppSetting Jump toAppSetting 
WantUtil.toAppSetting();
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toNotificationSetting Jump Notification Setting Page 
 WantUtil.toNotificationSetting();
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toNetworkSetting Jump to the mobile network settings page 
 WantUtil.toNetworkSetting();
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toWifiSetting Jump to WLAN Settings Page 
 WantUtil.toWifiSetting();
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toBluetoothSetting Jump to Bluetooth Settings Page 
 WantUtil.toBluetoothSetting();
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toNfcSetting Jump to NFC Settings Page 
 WantUtil.toNfcSetting();
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toVolumeSetting Jump Sound and Vibration Settings Page 
WantUtil.toVolumeSetting();
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toStorageSetting Jump Storage Settings Page 
WantUtil.toStorageSetting();
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toBatterySetting Jump Battery Settings Page 
 WantUtil.toBatterySetting();
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toWebBrowser Pull up the system browser 
WantUtil.toWebBrowser("https://developer.huawei.com/")
  .catch((err: BusinessError) => {
    LogUtil.error(JSON.stringify(err));
    ToastUtil.showToast("拉起失败！");
  });
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toAppGalleryDetail pulls up the application details interface corresponding to the application market 
WantUtil.toAppGalleryDetail("com.harmony.utils")
  .catch((err: BusinessError) => {
    LogUtil.error(JSON.stringify(err));
    ToastUtil.showToast("拉起失败！");
  });
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toFileManagement Pull up the system file manager 
WantUtil.toFileManagement()
  .catch((err: BusinessError) => {
    LogUtil.error(JSON.stringify(err));
    ToastUtil.showToast("拉起失败！");
  });
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startMMS pull up the SMS interface and specify the contact person 
WantUtil.startMMS("13909626520", "张三").then(() => {
  ToastUtil.showToast("拉起短信界面…")
}).catch((err: BusinessError) => {
  LogUtil.error(JSON.stringify(err));
  ToastUtil.showToast("拉起失败！");
});
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openFile calls three-party software to open the file 
let docPath = FileUtil.getFilesDirPath('download/wps/doc', '测试DOC文件.doc');
let uri = FileUtil.getUriFromPath(docPath);
WantUtil.openFile(uri).catch((error: BusinessError) => {
  ToastUtil.showToast("打开文件失败，" + error.message);
  LogUtil.error(`打开文件异常 ~ code: ${error.code} -·- message: ${error.message}`);
});
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