kotlin always let ()->Unit as Runnable. But android Handler cannot removeCallbacks. Ex:

    private val connectRunnable:()->Unit = {
        //xxxx
    }

    fun test() {
        handler.postDelayed(connectRunnable, 100)
        handler.removeCallbacks(connectRunnable)
    }

Above code will be compiled into:

   public final void test() {
      Function0 var1 = this.connectRunnable;
      this.handler.postDelayed(A::test$lambda$0, 100L);
      var1 = this.connectRunnable;
      this.handler.removeCallbacks(A::test$lambda$1); //diff from postDelay
   }

   private static final void test$lambda$0(Function0 $tmp0) {
      Intrinsics.checkNotNullParameter($tmp0, "$tmp0");
      $tmp0.invoke();
   }

   private static final void test$lambda$1(Function0 $tmp0) {
      Intrinsics.checkNotNullParameter($tmp0, "$tmp0");
      $tmp0.invoke();
   }

The ()->Unit function has be wrapped by diff lambda, it's not same one. So, the android Handler can't removeCallback.

We have to replace with Runnable statement.

Could you please add some warning message just like SharedPreferences' commit() to removeCallback when using kotlin?

Issue 376498180

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