Bir fragmentdan boshqasiga ma'lumotlarni qanday…

Bundle Argumentlari: Yangi fragment nusxasini yaratishda primitiv ma'lumot turlari va Parcelable yoki Serializable ni amalga oshiradigan obyektlarni o'tkazish uchun ishlatiladi.

// Yuboruvchi fragmentda
val bundle = Bundle().apply {
    putString("key", "value")
}
val fragment = TargetFragment().apply {
    arguments = bundle
}

// Qabul qiluvchi fragmentda
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    val value = arguments?.getString("key")
    // ... value dan foydalanish
}

Umumiy ViewModel: Bir Activity ga tegishli fragmentlar ma'lumot almashish uchun umumiy ViewModel dan foydalanishi mumkin.

// SharedViewModel
class SharedViewModel : ViewModel() {
    val data = MutableLiveData<String>()
}

// Yuboruvchi fragmentda
private val sharedViewModel: SharedViewModel by activityViewModels()
sharedViewModel.data.value = "value"

// Qabul qiluvchi fragmentda
private val sharedViewModel: SharedViewModel by activityViewModels()
sharedViewModel.data.observe(viewLifecycleOwner) { value ->
    // ... value dan foydalanish
}

Interfeys callback dan foydalanish: Bir fragment Activity da metodni chaqiradi, va Activity keyin boshqa fragmentda metodni chaqiradi.

// Activity yoki alohida faylda interfeys
interface DataTransferListener {
    fun onDataReceived(data: String)
}

// Yuboruvchi fragmentda
(activity as? DataTransferListener)?.onDataReceived("value")

// Interfeysni amalga oshirgan Activityda
override fun onDataReceived(data: String) {
    val targetFragment = supportFragmentManager.findFragmentById(R.id.target_fragment_container) as? TargetFragment
    targetFragment?.updateUI(data)
}

// Qabul qiluvchi fragmentda
fun updateUI(data: String) {
    // ... UI ni yangilash
}

Fragment Result API: Zamonaviy va tavsiya etilgan usul fragmentlar o'rtasida ma'lumot almashish uchun.

// Yuboruvchi fragmentda (natijani o'rnatish)
setFragmentResult("requestKey", bundleOf("bundleKey" to "value"))

// Qabul qiluvchi fragmentda (natijani tinglash)
setFragmentResultListener("requestKey") { requestKey, bundle ->
    val result = bundle.getString("bundleKey")
    // ... natijadan foydalanish
}

Bir fragmentdan boshqasiga ma'lumotlarni qanday uzatish mumkin?