Mike's IDEA extensions

Code quality goodifier, RAM saver, performance watcher, mood upgrader, vector drawable optimizer, color previewer.

UAST (Java + Kotlin) inspections

• Atomic can be replaced with volatile
• Allocation should be cached (new Gson(), new OkHttpClient())
• BigDecimal|BigInteger instantiation can be replaced with constant by stokito
• (BigDecimal|BigInteger).compareTo(ZERO) can be replaced with signum() by stokito

Kotlin inspections

• Heavyweight property delegation
• Declaration name is Java keyword
• Inline function leaks anonymous declaration which will be inlined to the call-site if called from another module
• Anonymous function won't be inlined; function cannot be inlined if it is a receiver of an extension function
• Nullable argument to string concatenation should be re-implemented in more reliable way
• Boxed primitive array allocation

Android inspections

• <include layout="?themeAttribute"> requires Marshmallow
• <drawable android:tint> requires Lollipop
• <layer-list><item android:gravity> requires Marshmallow
• @TargetApi should be replaced with @RequiresApi
• Use of reflective ObjectAnimator/PropertyValuesHolder
• Use of attributes like android.R.attr.enabled in context where state attributes expected, like android.R.attr.state_enabled
• Color.parseColor(<constant expression>) should be replaced with an integer literal
• Useless resource element
  • Drawables: single-item layer-lists, single stateless item selectors, insetless insets, empty shapes
  • Vector drawables: empty paths and clip-paths, invisible paths, suboptimal paths, useless clip-paths and groups, attributes with no effect
  • Animations and animators: empty and single-element sets
  • Layouts: overridden attributes in (layout_margin|padding)(Left|Top|Right|Bottom|Start|End|Horizontal|Vertical|*)
• Android utility methods should be replaced with Kotlin extensions
• setOnClickListener doesn't work on RecyclerView, on VideoView before API 26
• Kotlin Android Extensions are deprecated
• Drawable subclass should override getConstantState()
• Activity#onCreate(, PersistableBundle) will highly likely not be called
• <AnyScrollableView> should have an ID to save its scroll position

Editor tweaks

• Inlay hints when upcasting to interface, e. g.
  putExtra(listas Serializable)
• Inlay hints when overriding an interface method, e. g.
  @Override from Runnable,
  override fun Runnable.run()
• Inlay hints for vararg array allocation:
  String.format("%d", new[]{1});
  maxOf(1, *[2, 3, 4])
• ARGB Color swatches in gutter, folding int literals to #[AA]RRGGBB, color picker for Android, pasting CSS colors as int literals
• Backing property folding for Kotlin
• Live templates for SVG and Android Vector Drawable pathData
• Live templates for implementing Property for ObjectAnimator

Plugin page on JetBrains marketplace