StartActivityForResult está obsoleto!

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// Caller 
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val intent = Intent(context, Activity1::class.java)
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startActivityForResult(intent, REQUEST_CODE)
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// Receiver 
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override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
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    super.onActivityResult(requestCode, resultCode, data)
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    if (resultCode == Activity.RESULT_OK && requestCode == REQUEST_CODE) {
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        val value = data?.getStringExtra("input")
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    }
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}

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// Caller 
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val intent = Intent(context, Activity1::class.java)
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getResult.launch(intent)
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// Receiver 
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private val getResult =
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    registerForActivityResult(
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        ActivityResultContracts.StartActivityForResult()
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    ) {
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        if (it.resultCode == Activity.RESULT_OK) {
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            val value = it.data?.getStringExtra("input")
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        }
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    }

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//Caller
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getPreviewImage.launch(null)
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//Receiver 
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private val getPreviewImage = registerForActivityResult(ActivityResultContracts.TakePicture { bitmap ->
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    // we get bitmap as result directly
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})

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class MyLifecycleObserver(private val registry: ActivityResultRegistry) : DefaultLifecycleObserver {
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    lateinit var getContent: ActivityResultLauncher<String>
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    override fun onCreate(owner: LifecycleOwner) {
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        getContent = registry.register("key", owner, GetContent()) { uri ->
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            // Handle the returned Uri
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        }
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    }
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    fun selectImage() {
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        getContent.launch("image/*")
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    }
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}
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class MyFragment : Fragment() {
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    lateinit var observer: MyLifecycleObserver
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    override fun onCreate(savedInstanceState: Bundle?) {
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        // ...
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        observer = MyLifecycleObserver(requireActivity().activityResultRegistry)
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        lifecycle.addObserver(observer)
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    }
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    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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        val selectButton = view.findViewById<Button>(R.id.select_button)
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        selectButton.setOnClickListener {
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            // Open the activity to select an image
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            observer.selectImage()
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        }
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    }
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}