FlowingGradient should call TypedArray.recycle() method

FlowingGradient should call TypedArray.recycle() method

```
TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.FlowingGradient, 0, 0);

draw = a.getResourceId(R.styleable.FlowingGradient_transition_drawable, R.drawable.translate);
duration = a.getInt(R.styleable.FlowingGradient_transition_duration, 75);
//should be called
a.recycle();

```

Locate the FlowingGradient code that obtains styled attributes with TypedArray, as shown in the issue. Verify the resource reads and the TypedArray lifecycle, then confirm the change by building or running the Android library checks available in the repository.

Written by the indexing model from the issue text.