Assign a integer number to toolbar as title in Kotlin

Question

I am developing Android project in Kotlin.

I got my toolbar:

@BindView(R.id.tool_bar)
lateinit var toolbar: Toolbar

I want to set its title :

// student.id is a int type
toolbar.title =  student.id

Student's id is a Int type. toolbar.title expects a value of type CharSequence. How to assign my id to toolbar's title? I mean how can I convert student.id to CharSequence so that I can assign it to my toolbar title ?

score 0 · Answer 1 · answered Jan 01 '20 at 16:40

0

Use:

toolbar.title = student.id.toString()

answered Jan 01 '20 at 16:40

CommonsWare

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No, compiler still complains – Leem Jan 01 '20 at 16:43
3

@Leem: Complains about *what*? [`String` is an implementation of `CharSequence`](https://developer.android.com/reference/java/lang/String), and [`toString()` on `Int` returns a `String`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/to-string.html). – CommonsWare Jan 01 '20 at 16:54

score 0 · Answer 2 · answered Jan 01 '20 at 16:58

0

Can you try kotlin string template for your case

toolbar.title = "${student.id}"

answered Jan 01 '20 at 16:58

Raghul Vaikundam

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@Leem did you try my solution – Raghul Vaikundam Jan 12 '20 at 12:46

Shariful Islam Mubin · Answer 3 · 2020-01-01T19:36:57.487

0

This is best way to convert any type of number numbers (int, float, double) into string:-

toolbar.title = "" + student.id

Remember one thing, "" this must be before the number.
After that, put a + and then, put any type of number.

This technique is supported by many programming languages like Java, Kotlin, Javascipt etc.

edited Jan 01 '20 at 19:36

answered Jan 01 '20 at 19:29

Shariful Islam Mubin

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Assign a integer number to toolbar as title in Kotlin

3 Answers3