Update Timers.md

docs/Timers.md

@@ -32,3 +32,33 @@ var Component = React.createClass({
 ```
 
 We highly recommend never using bare timers and always using this mixin, it will save you from a lot of hard to track down bugs.
+
+## InteractionManager
+
+One reason why native apps feel so good performance wise is that barely any work is being done during an interaction/animation. In React Native, you can use `InteractionManager` that allows long-running work to be scheduled after any interactions/animations have completed.
+
+Applications can schedule tasks to run after interactions with the following:
+
+```javascript
+InteractionManager.runAfterInteractions(() => {
+   // ...long-running synchronous task...
+});
+```
+
+Compare this to other scheduling alternatives:
+
+- requestAnimationFrame(): for code that animates a view over time.
+- setImmediate/setTimeout/setInterval(): run code later, note this may delay animations.
+- runAfterInteractions(): run code later, without delaying active animations.
+
+The touch handling system considers one or more active touches to be an 'interaction' and will delay `runAfterInteractions()` callbacks until all touches have ended or been cancelled.
+
+InteractionManager also allows applications to register animations by creating an interaction 'handle' on animation start, and clearing it upon completion:
+
+```javascript
+var handle = InteractionManager.createInteractionHandle();
+// run animation... (`runAfterInteractions` tasks are queued)
+// later, on animation completion:
+InteractionManager.clearInteractionHandle(handle);
+// queued tasks run if all handles were cleared
+```