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

If you only use activity returns just an Activity instance. This can be any activity that embeds your fragment so in some cases you can get FragmentActivity instead your parent activity. Use this to make use you are getting the correct one:

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

Answer 2

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

This will do the job.

getActivity() as it's casted from a Fragment and getActivity()? to avoid NPE

Answer 3

val  intent = Intent(activity, AttachmentActivity::class.java)
            activity!!.startActivity(intent)
             activity!!.finish()

Answer 4

You can do smth like this in kotlin

YourButton.setOnClickListener{
            requireActivity().run{
                startActivity(Intent(this, NeededActivity::class.java))
                finish()
            }
        }

Answer 5

Try getting the context from the fragment instead

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
  super.onViewCreated(view, savedInstanceState)

  LogOut_btn.setOnClickListener {
    //FirebaseAuth.getInstance().signOut()
     val intent = Intent (view.context, Main::class.java)
    startActivity(intent)
  }
}

Answer 6

I believe it would be something like

activity?.let { callingActivity -> startActivity(Intent(callingActivity, Main::class.java)) }

You must use the calling activities context