鸿蒙开发api9及以上之相册权限、相机权限、文件读写权限申请的正确方法

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1.在module.json5中注册权限信息

和"abilities": []同级别

    "requestPermissions": [
{"name": "ohos.permission.READ_MEDIA","reason": "$string:EntryAbility1_desc","usedScene": {"abilities": ["EntryAbility"],"when": "inuse"}
},{"name": "ohos.permission.WRITE_MEDIA","reason": "$string:EntryAbility1_desc","usedScene": {"abilities": ["EntryAbility"],"when": "inuse"}},{"name": "ohos.permission.MEDIA_LOCATION","reason": "$string:EntryAbility1_desc","usedScene": {"abilities": ["EntryAbility"],"when": "inuse"}}]

"ohos.permission.READ_MEDIA" 文件读权限

"ohos.permission.WRITE_MEDIA"文件写权限

"ohos.permission.MEDIA_LOCATION" 文件位置权限： 允许应用访问用户媒体文件中的地理位置信息。

2.然后在需要调用的地方

获取当前context

  context2:common.UIAbilityContext = getContext(this) as common.UIAbilityContext

3.声明权限数组

const permissions: Array<Permissions> = ['ohos.permission.READ_MEDIA','ohos.permission.WRITE_MEDIA','ohos.permission.MEDIA_LOCATION',
];

4.最后才是代码调用

const atManager = abilityAccessCtrl.createAtManager();atManager.requestPermissionsFromUser(this.context2, permissions, (err, data) => {if (!err) {} else {}});

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