HarmonyOS 开发实践——基于设置应用的应用权限、通知设置跳转

Button(this.buttonText).onClick(()=>{ 
  let context = getContext(this) as common.UIAbilityContext; 
  let want: Want = { 
    bundleName: 'com.huawei.hmos.settings',//设置应用bundleName 
    abilityName: 'com.huawei.hmos.settings.MainAbility',//设置应用abilityName 
    uri: "systemui_notification_settings",//通知管理页面 
    parameters: { 
      pushParams: { 
        bundleName:context.abilityInfo.bundleName//拉起方应用包名 
      } 
    }; 
    context.startAbility(want) 
  }).margin(10) 
  Text(this.message)

onPageShow(): void { 
  Notification.requestEnableNotification().then(() => { 
  //已打开通知 
  this.message = "已允许接收消息推送。" 
  this.buttonText = "去关闭通知" 
  console.info("requestEnableNotification success"); 
}).catch((err:Error) => { 
  //未打开通知 
  this.message = "已禁止接收消息推送。" 
  this.buttonText = "去开启通知" 
  console.info("requestEnableNotification error"); 
}); 
}

Button("获取联系人").onClick(async () => { 
  const permissions: Array = ['ohos.permission.READ_CONTACTS']; 
  let context: Context = getContext(this) as common.UIAbilityContext; 
  let atManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager(); 
  // requestPermissionsFromUser会判断权限的授权状态来决定是否唤起弹窗 
  atManager.requestPermissionsFromUser(context, permissions).then((data: PermissionRequestResult) => { 
    //grantStatus：授权状态：0 已授权 1未授权 2未授权 表示请求无效， 
    let grantStatus: Array = data.authResults; 
    let length: number = grantStatus.length; 
    for (let i = 0; i < length; i++) { 
      if (grantStatus[i] === 0) { 
        // 已经授权，可以继续访问目标操作 
        this.getContact(context) 
      } else { 
        // 用户拒绝授权，提示用户必须授权才能访问当前功能，并引导用户到系统设置中打开相应的权限 
        this.contacts = [] 
        this.dialogControllerConfirm.open() 
        return; 
      } 
    } 
  }).catch((err: BusinessError) => { 
    console.error(`Failed to request permissions from user. Code is ${err.code}, message is ${err.message}`); 
  }) 
}).margin(10)

getContact(context:Context){ 
  contact.queryContacts(context, (err: BusinessError, data) => { 
    this.contacts = data 
  }); 
}

dialogControllerConfirm: CustomDialogController = new CustomDialogController({ 
  builder: AlertDialog({ 
    content: '已拒绝访问系统通讯录，是否前往开启？', 
    primaryButton: { 
      value: '取消', 
      action: () => {}, 
    }, 
    secondaryButton: { 
      value: '确认', 
      fontColor: $r('sys.color.ohos_id_color_warning'), 
      action: () => { 
        this.openAppInfo() 
      } 
    }, 
  }), 
  autoCancel: true, 
  customStyle: true, 
  alignment: DialogAlignment.Bottom 
})

openAppInfo(){ 
  let context = getContext(this) as common.UIAbilityContext; 
  context.startAbility({ 
    bundleName: 'com.huawei.hmos.settings', 
    abilityName: 'com.huawei.hmos.settings.MainAbility', 
    uri: 'application_info_entry', 
    parameters: { 
      pushParams: "com.example.startability" 
    } 
  }); 
}

Button("to蓝牙").onClick(()=> { 
  let context = getContext(this) as common.UIAbilityContext; 
  context.startAbility({ 
    bundleName: 'com.huawei.hmos.settings', 
    abilityName: 'com.huawei.hmos.settings.MainAbility', 
    uri:"bluetooth_entry", 
  }); 
}).margin(10) 
 
Button("toNFC").onClick(()=> { 
  let context = getContext(this) as common.UIAbilityContext; 
  context.startAbility({ 
    bundleName: 'com.huawei.hmos.settings', 
    abilityName: 'com.huawei.hmos.settings.MainAbility', 
    uri:"nfc_settings", 
  }); 
}).margin(10) 
 
Button("to移动网络").onClick(()=> { 
  let context = getContext(this) as common.UIAbilityContext; 
  context.startAbility({ 
    bundleName: 'com.huawei.hmos.settings', 
    abilityName: 'com.huawei.hmos.settings.MainAbility', 
    uri:"mobile_network_entry", 
  }); 
}).margin(10)