這是我的代碼：-
class ACFragment : Fragment() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
}
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
val id = "ac"
fb_ac.setOnClickListener {
val intent = Intent(this@ACFragment, AddFunction::class.java)
intent.putExtra("id", id)
startActivity(intent)
}
return inflater.inflate(R.layout.fragment_ac, container, false)
}
}
我想使用 Intent 將資料從片段傳輸到活動，但我無法做到。有人可以幫幫我嗎？
uj5u.com熱心網友回復：
您可以通過呼叫方法來檢索活動id中的字串：AddFunctiongetStringExtra
override fun onCreate(savedInstanceState: Bundle) {
...
val id = intent.getStringExtra("id") ?: ""
}
此外，您應該像這樣更改您的onCreateView宣告：
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
val view = inflater.inflate(R.layout.fragment_ac, container, false)
val id = "ac"
view.findViewById<Button>(R.id.fb_ac).setOnClickListener {
val intent = Intent(requireContext(), AddFunction::class.java)
intent.putExtra("id", id)
startActivity(intent)
}
return view
}
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