there is a certain button, when pressed, a new TextView should appear in ScrollView, but the problem is that all solutions to similar tasks are made for activity, and i need it for Fragment, and you can explain the code, I'm a beginner. Thank you in advance
binding.addButton.setOnClickListener(){
binding.layout.addView(binding.textView,0,0)
}
but after clicking, the application crashes
class HomeFragment : Fragment() {
private lateinit var binding: FragmentHomeBinding
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View {
binding = FragmentHomeBinding.inflate(inflater)
return binding.root
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
binding.addButton.setOnClickListener(){
binding.layout.addView(binding.textView,0,0)
}
}
}
xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:onClick="onClick"
tools:context=".HomeFragment">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" />
</ScrollView>
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Home"/>
<ImageButton
android:id="@+id/addButton"
android:layout_width="59dp"
android:layout_height="54dp"
android:onClick="createTextView"
android:scaleType="fitStart"
android:src="@drawable/ic_add_button"
android:tooltipText="text"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.843"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.961" />
</androidx.constraintlayout.widget.ConstraintLayout>
create new fun "createText" in mainActivity
public fun createText(text: String, color: Int): TextView{
val tv_dynamic = TextView(this)
tv_dynamic.text = text
tv_dynamic.setBackgroundColor(color)
tv_dynamic.setLayoutParams(
LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT
)
)
return tv_dynamic
}
add new fun in fragment
private fun addTextView(){
val newText = (activity as MainActivity).createText("Hello!",R.color.black)
binding.layout.addView(newText)
}
add it code to "onViewCreated" in fragment
binding.addButton.setOnClickListener() {
addTextView()
}