Intent kotlin error val intent = Intent( this, login::class.java )

Issue

I have the following code and am getting an error with the Intent. It is because of the this I am fairly certain.

btnsignup.setOnClickListener{
    val intent = Intent(
        this, signup::class.java
    )
    startActivity(intent)
}
btnlogin.setOnClickListener{
    val intent = Intent(
        this, login::class.java
    )
    startActivity(intent)
}

I tried

btnsignup.setOnClickListener{
    val intent = Intent(
        applicationContext, signup::class.java
    )
    startActivity(intent)
}
btnlogin.setOnClickListener{
    val intent = Intent(
        applicationContext, login::class.java
    )
    startActivity(intent)
}

Solution

In Android, this keyword refers to the current object (in this case, the click listener), not the Activity context required for starting an activity. That's why using this inside a click listener causes an error.

Try doing this:

btnsignup.setOnClickListener {
    val intent = Intent(requireContext(), SignupActivity::class.java)
    startActivity(intent)
}

btnlogin.setOnClickListener {
    val intent = Intent(requireContext(), LoginActivity::class.java)
    startActivity(intent)
}

or replace requireContext() with requireActivity().

Using requireContext() ensures that you get the context of the fragment, and using requireActivity() ensures that you get the context of the parent activity when inside a fragment.

Answered By - Afaq Khan