inout String acceptable in AIDL

Asked Jan 12 '15 at 16:13

Active Mar 24 '18 at 20:26

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all non-primitive parameters require a directional tag indicating which way the data goes; and

primitives are in by default, and cannot be otherwise.

Then they proceed with giving an example where a String is missing the directional tag. Can a String be out or inout in Android AIDL?

Since strings are immutable I'd have to do an assignment on the method handling the call in order to change the string, something like myString = "hello to you too";. I know that in a regular method this argument myString would remain unchanged at the caller side. Is that behavior applied here?

edited Jun 20 '20 at 09:12

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asked Jan 12 '15 at 16:13

Daniel

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What's your question actually? – pskink Jan 12 '15 at 16:27
@pskink In other words, can a string be used to retrieve a value from the callee using the out argument. Method signature example: `public boolean meth1(int n, inout Car car, out String s);`. – Daniel Jan 12 '15 at 16:34
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No, as String can be only 'in' – pskink Jan 12 '15 at 16:43
Any assignment to an argument, done inside the method handling the call, will be lost like it usually is in Java? – Daniel Jan 12 '15 at 16:46
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Yes, this is how it works – pskink Jan 12 '15 at 16:48

inout String acceptable in AIDL

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