android @Nullable annotation

Question

I want to create

android @Nullable annotation

i check this two links for example

but none works in android because RetentionPolicy, ElementType is not valid

How can i create @Nullable annotation in android?

not sure but android has one here developer.android.com/reference/android/support/annotation/… — Illegal Argument
– Illegal Argument, Commented Jul 31, 2014 at 3:41

s.d · Accepted Answer · 2013-03-04 11:50:52Z

2

Include jsr-305 jar file in project libraries. Use @nullable with fields and RoboGuice will stop complaining about null objects.

answered Mar 4, 2013 at 11:50

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1 Comment

I try but hmm is the same.I can not create this notation that will work as it must

squirrel · Accepted Answer · 2014-09-11 12:55:24Z

For Android Studio:

Add the following to build.gradle:

dependencies { ... // For @Nullable/@NonNull compile 'com.android.support:support-annotations:+' }

Go to File / Setting → Project Settings → Inspections and search for "nullable".

In Constant conditions & exceptions and @NotNull/@Nullable problems, click Configure annotations and select Android's annotations.

You may also want to check Suggest @Nullable annotations… under Constant conditions & exceptions, or possibly tweak other options.