How to remove warnings of nullable in Android?

Question

I'm using annotations library supported by Android. It is useful for checking NullpointerExceptions. But, it also annoying if I checked the variable if it is null.

In this case:

@Nullable
String value;

boolean isValid(String target) {
    return (target != null && target.length() > 0);
}

void test() {
    if (isValid(value)) {
        Log.d("TEST", value);
        // Do something.
    }
}

In above code, I already checked if 'value' is null, but still got the warning of "It maybe produce NullPointerException".

Is there some annotations that I checked null-type in this function?

Why not initialize the String `value` to an empty string in the constructor or at declaration itself? — vishwarajanand, Nov 17 '17 at 06:31

score 2 · Answer 1 · answered Nov 17 '17 at 06:34

2

You can use the annotation:

@SuppressWarnings("ConstantConditions")

answered Nov 17 '17 at 06:34

Xenolion

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score 1 · Answer 2 · answered Nov 17 '17 at 06:43

1

In android studio Go to

file-->other settings---> default settings (defaultpreference)--->inspections--->java---> @notnull and nullable Probelms

uncheck it and click ok.

answered Nov 17 '17 at 06:43

sasikumar

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3
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How to remove warnings of nullable in Android?

2 Answers2