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kotlinlang

Why does the following line not work:
```this.mainLayout.removeCallbacks(this::stopConnecting)```
But if the following does:
```val stopConnectingRunnable = Runnable { this.stopConnecting() }
this.mainLayout.removeCallbacks(this.stopConnectingRunnable)```
We thought (erroneously apparently and to much confusion/frustration) that the first would work.

why would you think that? it doesn't work like that in Java either

`removeCallbacks()` takes not just any `Runnable`, but the `Runnable` that you registered previously using `post()` or `postDelayed()`. So, you need to have a reference to the real `Runnable` that you used originally.

If in your second code snippet you used `stopConnectingRunnable` for the original `postDelayed()` call (or whatever) and for the `removeCallbacks()` call, that is why it works.

Conversely, if you let the compiler convert your function reference into a `Runnable` in both of those places, they would be different `Runnable` objects, and the `removeCallbacks()` one would not match the originally-registered one.