Hi I have a constraint layout in my fragment and I have added view binding to it.
when I run it on the device, the UI is blank but displays the correct fragment heading
fragment_enter_details.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/purple_200"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".EnterDetailsFragment">
<EditText
android:id="@ id/et_first_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<EditText
android:id="@ id/et_mobile"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
app:layout_constraintTop_toBottomOf="@ id/et_first_name"/>
<Button
android:id="@ id/btn_verify_details"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Verify details"
android:layout_margin="10dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
</androidx.constraintlayout.widget.ConstraintLayout>
EnterDetailsFragment
class EnterDetailsFragment : Fragment() {
private var _binding: FragmentEnterDetailsBinding? = null
private val binding get() = _binding!!
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
arguments?.let {
}
}
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View {
_binding = FragmentEnterDetailsBinding.inflate(inflater, container, false)
val view = binding.root
initView()
//val rootView = inflater.inflate(R.layout.fragment_enter_details, container, false)
return view
}
private fun initView() {
binding.btnVerifyDetails.setOnClickListener {
findNavController().navigate(R.id.action_enterDetailsFragment_to_verifyDetailsFragment)
}
}
}
Added viewbinding in the gradle
buildFeatures {
viewBinding = true
}
Nav graph
this is my nav graph for reference
<?xml version="1.0" encoding="utf-8"?>
<navigation 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:id="@ id/nav_graph"
app:startDestination="@id/enterDetailsFragment">
<fragment
android:id="@ id/enterDetailsFragment"
android:name="com.example.navjetpack.EnterDetailsFragment"
android:label="fragment_enter_details"
tools:layout="@layout/fragment_enter_details" >
<action
android:id="@ id/action_enterDetailsFragment_to_verifyDetailsFragment"
app:destination="@id/verifyDetailsFragment" />
</fragment>
<fragment
android:id="@ id/verifyDetailsFragment"
android:name="com.example.navjetpack.VerifyDetailsFragment"
android:label="fragment_verify_details"
tools:layout="@layout/fragment_verify_details" />
</navigation>
Ant ideas on what I might be doing wrong here
Thanks Rao
EDIT
MainActivity
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val navController = Navigation.findNavController(this, R.id.fragment)
NavigationUI.setupActionBarWithNavController(this, navController)
}
}
Activity_main.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"
tools:context=".MainActivity">
<fragment
android:id="@ id/fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="0dp"
android:layout_height="0dp"
app:defaultNavHost="true"
app:layout_constraintBottom_toTopOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:navGraph="@navigation/nav_graph"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
CodePudding user response:
Try constraint your again. I'm seeing you're constraint bottom of to top of the parent.
<?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"
tools:context=".MainActivity">
<fragment
android:id="@ id/fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="0dp"
android:layout_height="0dp"
app:defaultNavHost="true"
app:layout_constraintBottom_toTopOf="parent" // Fix to app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:navGraph="@navigation/nav_graph"
/>
</androidx.constraintlayout.widget.ConstraintLayout>