Kotlin: open new Activity inside of a Fragment

Question

How can I open a new Activity inside of a fragment when using a button?

I tried this

override fun onViewCreated(view: View, savedInstanceState: Bundle?         


        

Answer 1

Here is the solution I found while trying to get something similar to work.

view.findViewById<Button>(R.id.button_second).setOnClickListener {
  val i = Intent(activity, ClassNameOfActivityIWantToGoTo::class.java)
  activity?.startActivity(i)
}

Answer 2

For me i just did this and it worked

val intent = Intent(AppName.applicationContext(), YourAppName::class.java)
activity?.startActivity(intent)

You can add this code into your fragment

AppName

This is the Application name which holds global companion object like context

Answer 3

FirebaseAuth.getInstance().signOut() before the intent.

Answer 4

Your code is almost done, you just need to pass the fragment instance as the first parameter of Intent replace YourFragmentName with your fragment name after the @, bellow:

val intent = Intent (this@YourFragmentName.context, Main::class.java)
startActivity(intent)

Look at this sample bellow:

class MyFragment: Fragment(){

    override fun onActivityCreated(savedInstanceState: Bundle?) {
        super.onActivityCreated(savedInstanceState)

        val intent = Intent (this@MyFragment.context, YOUR_NEXT_ACTIVITY_CLASS::class.java)
        startActivity(intent)
    }
}

Answer 5

Also an option (for kotlin). In onCreateView set onClickListener for a button:

button.setOnClickListener {
    requireActivity().run {
        startActivity(Intent(this, MainActivity::class.java))
        finish() // If activity no more needed in back stack
    }
}

Answer 6

Because Fragment is NOT of Context type, you'll need to call the parent Activity:

 val intent = Intent (getActivity(), Main::class.java)
 getActivity().startActivity(intent)

or maybe something like

activity?.let{
    val intent = Intent (it, Main::class.java)
    it.startActivity(intent)
}