How to pass a string to a var without escape symbol in Kotlin?

Question

I hope to pass the string {"name":"My Settings 1"} to a var aa

I have to write it using the code var aa=" {\"name\":\"My Settings 1\"} "

Is there a simple way in Kotlin when I use Android Studio 3.0 ?

I know <![CDATA[...]]> is good for XML content

Answer 1

The simplest thing you can do in Kotlin is use raw strings with triple quote marks:

val a = """{"name":"My Settings 1"}"""

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For a tooling solution instead of a language solution (so this works both in Kotlin and Java), you can use language injection in Android Studio or IntelliJ.

1. Create a string, and invoke intention actions on it with Alt + Enter. Select Inject language or reference, and then JSON.

   

   

2. Use Alt + Enter again, and choose Edit JSON Fragment.

   

3. Edit the raw JSON in the panel that appears on the bottom, and IntelliJ will automatically mirror its contents into the string, escaping any characters that have to be escaped.

   

Answer 2

Escaping special chars in regular Strings, like in your example, is what has to be done with Java and also Kotlin:

"{\"name\":\"My Settings 1\"}"

Kotlin offers raw Strings to evade this. In these raw Strings there's no need to escape special chars, which shows the following:

 """{"name":"My Settings 1"}"""

Raw Strings are delimited by a triple quote ("""). Read the docs here.