How to call button in other class using kotlin

Question

How do i call this function in other class and if i implement companion object it cause an error

class CommonMethods{
private fun onPressFacebookLogin() {
    btn_fb_login.setOnClickListener(View.OnClickListener {
        // Login
        callbackManager = CallbackManager.Factory.create()
        LoginManager.getInstance().logInWithReadPermissions(this, listOf("public_profile", "email"))
        LoginManager.getInstance().registerCallback(callbackManager,
            object : FacebookCallback<LoginResult> {
                override fun onSuccess(loginResult: LoginResult) {
                    Log.d("MainActivity", "Facebook token: " + loginResult.accessToken.token)
                    startActivity(Intent(applicationContext, MainActivity::class.java))
                }

                override fun onCancel() {
                    Log.d("MainActivity", "Facebook onCancel.")
                }

                override fun onError(error: FacebookException) {
                    Log.d("MainActivity", "Facebook onError.")
                }
            })
    })
}

}

question from:https://stackoverflow.com/questions/65880396/how-to-call-button-in-other-class-using-kotlin

Answer 1

this is my new code the line LoginManager.getInstance().logInWithReadPermissions(this, listOf("public_profile", "email")) and this line is the error super.onActivityResult(requestCode, resultCode, data)

class CommonMethods{
lateinit var callbackManager : CallbackManager

companion object callFacebook{
    fun onPressFacebookLogin(btn_fb_login:View,) {
        val mContext = btn_fb_login.context
        btn_fb_login.setOnClickListener(View.OnClickListener {
            // Login
            var callbackManager = CallbackManager.Factory.create()
            LoginManager.getInstance().logInWithReadPermissions(this, listOf("public_profile", "email"))
            LoginManager.getInstance().registerCallback(callbackManager,
                object : FacebookCallback<LoginResult> {
                    override fun onSuccess(loginResult: LoginResult) {
                        Log.d("MainActivity", "Facebook token: " + loginResult.accessToken.token)
                        mContext.startActivity(Intent(mContext, MainActivity::class.java))
                    }

                    override fun onCancel() {
                        Log.d("MainActivity", "Facebook onCancel.")
                    }

                    override fun onError(error: FacebookException) {
                        Log.d("MainActivity", "Facebook onError.")
                    }
                })
        })
    }

}
fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)
    callbackManager?.onActivityResult(requestCode, resultCode, data)
}

}