android - 包装信息 : requestedPermissions vs permissions

Question

requestedPermissions 和 permissions 有什么区别？

PackageInfo _pi = getPackageManager().getPackageInfo(this.getPackageName(), 
                                               PackageManager.GET_PERMISSIONS);

// permissions
PermissionInfo[] _permissions = _pi.permissions;

// requestedPermissions
String[] _requestedPermissions = _pi.requestedPermissions;

是关于应用程序的权限和操作系统的权限吗？

谢谢

Answer 1

如文档所示

public PermissionInfo[]

Array of all <permission> tags included under <manifest>, or null if there were none.

和

int[] requestedPermissions

Array of all <uses-permission> tags included under <manifest>, or null if there were none.

所以 permissionInfo会有 attributes在 manifest list 中的标签，例如

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.android.androidtest"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name">

和

requstedPermissions 将返回 <uses-permission> 中的权限标签例如

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.CAMERA" />