如何申请设备上的媒体读写权限？

Question

如何申请设备上的媒体读写权限

Answer 1

解决措施

步骤 1

在module.json5配置文件中配置媒体读写权限ohos.permission.READ_MEDIA和ohos.permission.WRITE_MEDIA。

{ 
  "module" : {  
    "requestPermissions":[ 
      { 
        "name" : "ohos.permission.READ_MEDIA", 
        "reason": "$string:reason" 
      }, 
      { 
        "name" : "ohos.permission.WRITE_MEDIA", 
        "reason": "$string:reason" 
      } 
    ] 
  }
}

步骤 2

这两个权限的授权方式均为user_grant，因此需要调用requestPermissionsFromUser接口，以动态弹窗的方式向用户申请授权。

import abilityAccessCtrl, {Permissions} from '@ohos.abilityAccessCtrl'; 
import {BusinessError} from '@ohos.base'; 
import common from '@ohos.app.ability.common'; 
 
let context = getContext(this) as common.UIAbilityContext; 
let atManager = abilityAccessCtrl.createAtManager(); 
let permissions: Array<Permissions> = ['ohos.permission.READ_MEDIA','ohos.permission.WRITE_MEDIA']; 
atManager.requestPermissionsFromUser(context, permissions) 
  .then((data) => { 
    console.log("Succeed to request permission from user with data: " + JSON.stringify(data)); 
  }).catch((error: BusinessError) => { 
    console.log("Failed to request permission from user with error: " + JSON.stringify(error)); 
})

----结束