![]() ![]() ![]() Kotlin Android Studio Warning "Do not concatenate text displayed with setText.and so on android annotations lint check with kotlin parameters.Kotlin - Overwrite Obj Props With Modified Obj Props if Not Null.Mock object in Android Unit test with kotlin - any() gives null.How to pass null to an Observable with nullable type in RxJava 2 and Kotlin.Spring Boot with Kotlin in is always null.Why is Kotlin String.split with a regex string not the same as Java?.Kotlin: How to check if enum contains a given String without messing with Exceptions?.Whats the best way in kotlin for an null object's toString() method to return an empty string instead of "null".Boolean check for whether a nullable string is null or blank in Kotlin.How to convert this java code with null condition check into Kotlin.Kotlin multiplication between nullable and non-nullable float errors even with null check.Kotlin null check with !! does not short-circuit evaluation?.Which then again can be used within the listOfNotNull. Assuming something like the following as data class: data class Location(val line1 : String?, val line2 : String?, val line3part1 : String?, val line3part2 : String?)Ī possible usage of listOfNotNull assuming that empty lines should not be printed could like: with(yourLocation) Now regarding your update of the question. If instead you just wanted to concatenate a list of strings which may or may not contain null values, you may also be interested in something like the following: listOfNotNull(foo, bar).joinToString(" ") If it is ok if null is printed, I just keep it as is, i.e. If I need a default value, I go with foo ?: "". Counterquestions: what do you want to append instead? and what is your preference? ![]()
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