PermissionChecker

class PermissionChecker

This class provides permission check APIs that verify both the permission and the associated app op for this permission if such is defined.

In the new permission model permissions with protection level dangerous are runtime permissions. For apps targeting M and above the user may not grant such permissions or revoke them at any time. For apps targeting API lower than M these permissions are always granted as such apps do not expect permission revocations and would crash. Therefore, when the user disables a permission for a legacy app in the UI the platform disables the APIs guarded by this permission making them a no-op which is doing nothing or returning an empty result or default error.

It is important that when you perform an operation on behalf of another app you use these APIs to check for permissions as the app may be a legacy app that does not participate in the new permission model for which the user had disabled the "permission" which is achieved by disallowing the corresponding app op.

Summary

const val PERMISSION_DENIED = -1: Int

const val PERMISSION_DENIED_APP_OP = -2: Int

const val PERMISSION_GRANTED = 0: Int

java-static fun checkCallingOrSelfPermission(context: Context, permission: String): Int

java-static fun checkCallingPermission(
    context: Context,
    permission: String,
    packageName: String?
): Int

java-static fun checkPermission(
    context: Context,
    permission: String,
    pid: Int,
    uid: Int,
    packageName: String?
): Int

java-static fun checkSelfPermission(context: Context, permission: String): Int