Intent from kotlin to java Error in class.java - kotlin

Question

Im trying to proceed on the next activty from Kotlin to Java it gives me a red line in ".java"
in
val intent = Intent(this, MainActivity::class.java)
startActivity(intent)
This is my whole code:
package com.heyletscode.artutorial
import android.content.Intent
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import android.widget.Button
class Garlic : AppCompatActivity() {
lateinit var button : Button
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_garlic)
button = findViewById(R.id.Button)
button.setOnClickListener(listener)
}
val listener= View.OnClickListener { view ->
when (view.getId()) {
R.id.Button -> {
val intent = Intent(this, MainActivity::class.java)
startActivity(intent)
}
}
}
}
Ive tried different methods to proceed to next activty but give me red line in .java

Answer 1

I'd suggest moving your listener set-up to your onCreate like this
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_garlic)
button = findViewById(R.id.Button)
button.setOnClickListener { ->
val intent = Intent(this#Garlic, MainActivity::class.java)
startActivity(intent)
}
}
and the this is referencing to your onClickListener, append it with # followed by your activity name
val intent = Intent(this#Garlic, MainActivity::class.java)

Answer 2

may be you provide wrong context to Intent try below code
package com.heyletscode.artutorial
import android.content.Intent
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import android.widget.Button
class Garlic : AppCompatActivity() {
lateinit var button : Button
private lateinit var context: Context //create object of context
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_garlic)
context= this#MainActivity // init context here
button = findViewById(R.id.Button)
button.setOnClickListener(listener)
}
val listener= View.OnClickListener { view ->
when (view.getId()) {
R.id.Button -> {
val intent = Intent(context, MainActivity::class.java) //replace this with context
startActivity(intent)
}
}
}
}