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Editorial Team
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Asked: 2026-06-13T03:37:04+00:00

I would like to understand something about Android’s roles and, specifically, why if I

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I would like to understand something about Android’s roles and, specifically, why if I execute this function of the class Context

openOutputFile(filename, MODE_WORLD_WRITEABLE)

the created file has write permissions for each role (User, Group, Others), whilst has read permissions just for User and Group.
I think it is not an o.s. lock, because if I try to change permissions executing this code

Runtime.getRuntime().exec("chmod 666 FILE_PATH")

it sets read and write permissions for each role.

Is it normal? “Who are” people in Others’ role?
Why the first instruction does not set read permission for “Others”?

Thanks.

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1 Answer

  1. Editorial Team

    Is it normal?

    Yes.

    “Who are” people in Others’ role?

    All apps on the device, other than yours.

    Why the first instruction does not set read permission for “Others”?

    Because you did not ask it to. Use MODE_WORLD_READABLE to set read access bits.

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