Resolve pre-existing Android Inspection violations #468
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Marking fields as final guarantees that the reference cannot be modified after initialisation. While it's still possible to mutate any fields on the object itself, this is a good first step towards thread safety, and fields should be final by default.
we should prefer a switch statement for longer conditional branches (3+) as it reads better
There are two styles to convert a collection to an array: either using a pre-sized array (like c.toArray(new String[c.size()])) or using an empty array (like c.toArray(new String[0]). In older Java versions using pre-sized array was recommended, as the reflection call which is necessary to create an array of proper size was quite slow. However since late updates of OpenJDK 6 this call was intrinsified, making the performance of the empty array version the same and sometimes even better, compared to the pre-sized version. Also passing pre-sized array is dangerous for a concurrent or synchronized collection as a data race is possible between the size and toArray call which may result in extra nulls at the end of the array, if the collection was concurrently shrunk during the operation. This inspection allows to follow the uniform style: either using an empty array (which is recommended in modern Java) or using a pre-sized array (which might be faster in older Java versions or non-HotSpot based JVMs).
Prefer using zero-based array when converting collection
Remove redundant local variable
Make fields final where possible
refactor: Convert fields to local variables
Remove redundant/verbose code constructs as reported via Android Lint
Add missing nullability annotations in test code
refactor: Remove unused imports
Refactor language level migration
fractalwrench
changed the title
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Addresses existing violations for the Android Inspector (all code reviewed in previous PRs).