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README
Apache-2.0

蜂窝数据

简介

蜂窝数据模块作为电话子系统可裁剪部件,依赖于core_service核心服务、ril_adapter。 具有蜂窝数据激活、蜂窝数据异常检测与恢复、蜂窝数据状态管理、蜂窝数据开关管理、蜂窝数据漫游管理、APN管理、网络管理交互等功能。

图 1 蜂窝数据模块架构图

目录

base/telephony/cellular_data/
├── figures                              # Readme资源文件
├── frameworks                           # 框架层目录
│   ├── js                               # js相关代码
│   └── native                           # native相关代码
├── interfaces                           # 接口目录
│   ├── innerkits                        # 部件间的内部接口
│   └── kits                             # 对应用提供的接口(例如JS接口)
├── sa_profile                           # SA配置
├── services                             # 蜂窝数据服务代码目录
│   ├── include                          # 蜂窝数据服务头文件目录
│   └── src                              # 蜂窝数据服务实现代码目录
│       ├── apn_manager                  # APN管理代码目录
│       ├── state_machine                # 数据连接状态机代码目录
│       └── utils                        # 蜂窝数据工具代码目录
└── test                                 # 蜂窝数据测试代码目录
    └── unit_test                        # 单元测试相关代码

约束

  • 开发语言:Java Script。
  • 软件上,需要与以下服务配合使用:Telephony核心服务(core_service)、RIL适配(ril_adapter)。
  • 硬件上,需要搭载的设备支持以下硬件:可以进行独立蜂窝通信的Modem以及SIM卡。

接口说明

表 1 蜂窝数据对外提供的接口

接口名称 接口描述 所需权限
function isCellularDataEnabled(callback: AsyncCallback<boolean>): void; 获取蜂窝数据开关是否打开 ohos.permission.GET_NETWORK_INFO
function getCellularDataState(callback: AsyncCallback<DataConnectState>): void; 获取蜂窝数据状态 ohos.permission.GET_NETWORK_INFO

完整的JS API说明以及实例代码请参考:蜂窝数据

使用说明

获取蜂窝数据开关是否打开

  1. 可以通过callback或者Promise的方式调用IsCellularDataEnabled获取蜂窝数据开关是否打开。

  2. 该接口为异步接口,相关执行结果会从callback中返回。

    import data from "@ohos.telephony.data";
    
    // 调用接口【callback方式】
    data.isCellularDataEnabled((err, value) => {
      if (err) {
        // 接口调用失败,err非空
        console.error(`failed to isCellularDataEnabled because ${err.message}`);
        return;
      }
      // 接口调用成功,err为空
      console.log(`success to isCellularDataEnabled: ${value}`);
    });
    
    // 调用接口【Promise方式】
    let promise = data.isCellularDataEnabled();
    promise.then((value) => {
      // 接口调用成功,此处可以实现成功场景分支代码。
      console.log(`success to isCellularDataEnabled: ${value}`);
    }).catch((err) => {
      // 接口调用失败,此处可以实现失败场景分支代码。
      console.error(`failed to isCellularDataEnabled because ${err.message}`);
    });

获取蜂窝数据状态

表 2 DataConnectState枚举值

名称 说明
DATA_STATE_UNKNOWN -1 未知
DATA_STATE_DISCONNECTED 0 连接断开
DATA_STATE_CONNECTING 1 连接中
DATA_STATE_CONNECTED 2 已连接
DATA_STATE_SUSPENDED 3 已挂起
  1. 可以通过callback或者Promise的方式调用getCellularDataState获取蜂窝数据状态。

  2. 该接口为异步接口,相关执行结果会从callback中返回。

    import data from "@ohos.telephony.data";
    
    // 调用接口【callback方式】
    data.getCellularDataState((err, value) => {
      if (err) {
        // 接口调用失败,err非空
        console.error(`failed to getCellularDataState because ${err.message}`);
        return;
      }
      // 接口调用成功,err为空
      console.log(`success to getCellularDataState: ${value}`);
    });
    
    // 调用接口【Promise方式】
    let promise = data.getCellularDataState();
    promise.then((value) => {
      // 接口调用成功,此处可以实现成功场景分支代码。
      console.log(`success to getCellularDataState: ${value}`);
    }).catch((err) => {
      // 接口调用失败,此处可以实现失败场景分支代码。
      console.error(`failed to getCellularDataState because ${err.message}`);
    });

相关仓

电话服务子系统

telephony_cellular_data

telephony_core_service

telephony_ril_adapter

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