鸿蒙工具类

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拨打电话
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export class SystemUtils {  
  /*拨打电话*/  
  static makeCall(phone?: string) {  
    let isSupport = call.hasVoiceCapability();  
    if (FormatUtil.isPhone(phone) && isSupport) {  
      call.makeCall(phone, (err) => {  
        if (!err) {  
          ToastUtil.showToast("成功拉");  
        } else {  
          ToastUtil.showToast("暂不支持打电话功能");  
        }  
      });  
    } else {  
      ToastUtil.showToast("请确认电话是否正确");  
    }  
  }
}