I m looking at ways to specify a modifier conditionally I fo

Question

I m looking at ways to specify a modifier conditionally I found two samples in this slack 1 ```inline fun Modifier modifyIf condition Boolean then Modifier gt Modifier Modifier = if condition then else this``` 2 ```inline fun Modifier thenIf condition Boolean block gt Modifier = this then if condition block else Modifier ``` Number 1 does not work for me it actually messed up my modifier while number 2 works exactly as expected I m not sure why Any ideas

Colton Idle · Answer

```Box modifier = Modifier fillMaxSize aspectRatio 240 360f modifyIf cardClick = null Modifier clickable cardClick ``` the above somehow messes with my box size That s option 1

Colton Idle · Answer

```Box modifier = Modifier fillMaxSize aspectRatio 240 360f thenIf cardClick = null Modifier clickable cardClick ``` while option 2 works perfect

Ian Lake · Answer

Your else statement in the first one just throws away `this` instead of building upon it by using `then` which is all the fluent style is actually doing under the hood so yeah anything before your `modifyIf` is going to be dropped

Brian G · Answer

< Ian Lake> That s not exactly right `this` is used implicitly it s not thrown away and you don t need to use `then` in the first version

Brian G · Answer

It s not the `else` statement that s the issue it s your callback you re using `Modifier` instead of `this`

Brian G · Answer

Simply leave out the `Modifier` call and `this` will be used automatically ```Box modifier = Modifier fillMaxSize aspectRatio 240 360f modifyIf cardClick = null clickable cardClick ```

Stylianos Gakis · Answer

This is not used implicitly actually Ian is right Even though `then` is an extension on Modifier and is called with `this` context inside the lambda a completely new Modifier is created and the one passed inside the lambda is dropped For it to work it would have to be something like not sure if this compiles but you get the idea I hope ``` modifyIf cardClick = null this then Modifier clickable cardClick ```

Brian G · Answer

< Stylianos Gakis> You re still referencing Modifier for no reason The existing one is passed in to the lambda you can call clickable directly since `this` is `Modifier` like in my example above Yours works too but there s no reason to call `then` in this example You can leave out `this ` in your code as well

Stylianos Gakis · Answer

Oh yeah sure but I was just referring how the snippet that was sent before was in fact not working But yeah you are right from that snippet if you just removed the `Modifier ` part it should work But I personally wouldn t really like how this looks like as someone who had never seen that function before the lack of explicitness would make me have to look at the source code to understand it But again this is a personal opinion sweat smile