我试图在我的片段中使用导航组件,但我在使用绑定扩展布局时遇到了问题。看,这是我的片段xml,这是fragment.kt
代码:
这就是错误:
com.google.android.material.textview.MaterialTextView不能强制转换为com.google.android.material.textfield.TextInputEditText
<?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:background="@color/background_white_color"
tools:context=".home.presentation.view.EditNoteScreen">
<com.google.android.material.textview.MaterialTextView
android:id="@+id/mine_notes_tittle_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="58dp"
android:layout_marginTop="18dp"
android:fontFamily="@font/roboto"
android:text="@string/new_note"
android:textColor="@color/grey_text"
android:textSize="23sp"
android:textStyle="bold"
app:fontFamily="@font/roboto"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/add_new_note_button_home_screen"
android:layout_width="36dp"
android:layout_height="36dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:background="@color/transparent_color"
android:fontFamily="@font/roboto"
android:src="@drawable/add_note_button_home_screen"
android:text="@string/save"
android:textAllCaps="false"
android:textColor="@color/grey_text"
android:textSize="14sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_goneMarginEnd="16dp"
app:layout_goneMarginTop="24sp" />
<androidx.appcompat.widget.AppCompatImageButton
android:id="@+id/back_button_new_note_screen"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:background="@color/transparent_color"
android:src="@drawable/back_button"
app:layout_constraintBottom_toBottomOf="@+id/mine_notes_tittle_text_view"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/mine_notes_tittle_text_view" />
<com.google.android.material.card.MaterialCardView
android:id="@+id/new_note_card_item"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="24dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="12dp"
android:backgroundTint="@color/lilac_color"
android:clickable="true"
android:focusable="true"
android:theme="@style/CustomCardCorners"
app:cardElevation="4dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/back_button_new_note_screen">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<androidx.appcompat.widget.AppCompatTextView
android:id="@+id/newNote_cardTittle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="@string/note_title"
android:textColor="@color/black"
android:textSize="14sp"
android:textStyle="bold"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.appcompat.widget.AppCompatTextView
android:id="@+id/newNote_cardDescription"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginBottom="12dp"
android:text="@string/description"
android:textColor="@color/grey_text"
android:textSize="12sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/newNote_cardTittle" />
</androidx.constraintlayout.widget.ConstraintLayout>
</com.google.android.material.card.MaterialCardView>
<com.google.android.material.textview.MaterialTextView
android:id="@+id/tittle_input_text_new_card_screen"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="24dp"
android:text="@string/edit_text_tittle"
android:textSize="12sp"
app:layout_constraintStart_toStartOf="@+id/new_note_card_item"
app:layout_constraintTop_toBottomOf="@id/new_note_card_item" />
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/new_note_input_tittle_edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:hint="@string/type_your_tittle"
app:boxStrokeColor="@color/grey_text"
app:counterEnabled="true"
app:counterMaxLength="25"
app:hintTextColor="@color/grey_text"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/tittle_input_text_new_card_screen">
<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:backgroundTint="@color/white"
app:layout_constraintStart_toStartOf="@+id/tittle_input_text_new_card_screen"
app:layout_constraintTop_toBottomOf="@id/tittle_input_text_new_card_screen" />
</com.google.android.material.textfield.TextInputLayout>
<com.google.android.material.textview.MaterialTextView
android:id="@+id/description_input_text_new_card_screen"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="24dp"
android:text="@string/description_new_note_screen_tittle"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="@id/new_note_input_tittle_edit_text"
app:layout_constraintTop_toBottomOf="@id/new_note_input_tittle_edit_text" />
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/new_note_input_description_edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:hint="@string/type_your_description"
app:boxStrokeColor="@color/grey_text"
app:counterEnabled="true"
app:counterMaxLength="220"
app:hintTextColor="@color/grey_text"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/description_input_text_new_card_screen">
<com.google.android.material.textfield.TextInputEditText
android:id="@id/description_input_text_new_card_screen"
android:layout_width="match_parent"
android:layout_height="120dp"
android:backgroundTint="@color/white"
android:gravity="top|start"
android:inputType="textMultiLine"
android:minLines="2"
app:layout_constraintStart_toStartOf="@+id/tittle_input_text_new_card_screen"
app:layout_constraintTop_toBottomOf="@id/tittle_input_text_new_card_screen" />
</com.google.android.material.textfield.TextInputLayout>
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/new_note_baby_blue_button"
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_marginStart="16dp"
android:background="@drawable/background_button_not_selected"
android:backgroundTint="@color/blue_baby_color"
android:backgroundTintMode="screen"
android:focusable="true"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/new_note_input_description_edit_text" />
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/new_note_light_turquoise_button"
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_marginStart="8dp"
android:background="@drawable/background_button_not_selected"
android:backgroundTint="@color/turquoise_color"
android:backgroundTintMode="screen"
app:layout_constraintStart_toEndOf="@id/new_note_baby_blue_button"
app:layout_constraintTop_toBottomOf="@+id/new_note_input_description_edit_text" />
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/new_note_pastel_purple_button"
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_marginStart="8dp"
android:background="@drawable/background_button_not_selected"
android:backgroundTint="@color/purple_color"
android:backgroundTintMode="screen"
app:layout_constraintStart_toEndOf="@id/new_note_light_turquoise_button"
app:layout_constraintTop_toBottomOf="@+id/new_note_input_description_edit_text" />
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/new_note_pastel_lilac_button"
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_marginStart="8dp"
android:background="@drawable/background_button_not_selected"
android:backgroundTint="@color/lilac_color"
android:backgroundTintMode="screen"
app:layout_constraintStart_toEndOf="@id/new_note_pastel_purple_button"
app:layout_constraintTop_toBottomOf="@+id/new_note_input_description_edit_text" />
<androidx.appcompat.widget.AppCompatButton
android:id="@+id/new_note_pastel_pink_button"
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_marginStart="8dp"
android:background="@drawable/background_button_not_selected"
android:backgroundTint="@color/pink_color"
android:backgroundTintMode="screen"
app:layout_constraintStart_toEndOf="@id/new_note_pastel_lilac_button"
app:layout_constraintTop_toBottomOf="@+id/new_note_input_description_edit_text" />
</androidx.constraintlayout.widget.ConstraintLayout>
my fragment.kt:
package com.example.notesapp.home.presentation.view
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.navigation.fragment.findNavController
import com.example.notesapp.R
import com.example.notesapp.databinding.FragmentNewNoteScreenBinding
class NewNoteScreen : Fragment(R.layout.fragment_new_note_screen) {
private lateinit var binding: FragmentNewNoteScreenBinding
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
arguments?.let {
}
}
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View {
binding = FragmentNewNoteScreenBinding.inflate(layoutInflater, container, false)
setListener()
return binding.root
}
private fun setListener() {
binding.run {
backButtonNewNoteScreen.setOnClickListener {
findNavController().navigate(R.id.action_newNoteScreen_to_homeScreenfragment)
}
}
}
companion object {
}
}
我想知道为什么会出现这个错误,以及如何解决它,这样我就可以继续编写我的应用程序。
1条答案
按热度按时间a9wyjsp71#
您遇到的错误是由于将同一IDdescription_input_text_new_card_screen分配给XML布局中的MaterialTextView和TextInputEditText而导致的。这会导致在尝试膨胀布局时出现类强制转换异常。
要解决此问题,您需要为这两个元素分配不同的ID。将XML布局中的MaterialTextView或TextInputEditText的ID更新为唯一ID。
例如,您可以将TextInputEditText的ID更改为new_note_input_text_edit: