matteog
Reputation: 190
NestedScrollView Having Constraint Layout not scrolling
My xml is composed by one constraint layout. Inside this there are 2 buttons and 1 nested scroll view. Inside the ScrollView there are various elements including recycle view. I would like that the recycle view not scroll but scroll only the nested scroll view. I have disabled the scroll of recycle view in this mode
(recyclerView.setNestedScrollingEnabled(false);)
but the problem is that the nested scroll view not scrolling. Can you help me?
I attach the code below.
The code start in this mode :
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<TextView
android:id="@+id/azzera"
android:layout_width="120dp"
android:layout_height="40dp"
android:layout_marginStart="40dp"
android:layout_marginBottom="28dp"
android:background="@drawable/rounded_4lati"
android:backgroundTint="@color/azzurro"
android:elevation="@dimen/dimen8"
android:paddingTop="@dimen/dimen8"
android:text="@string/azzera"
android:textAlignment="center"
android:textColor="#FFFFFF"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="@+id/conferma"
android:layout_width="120dp"
android:layout_height="40dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="28dp"
android:background="@drawable/rounded_4lati"
android:backgroundTint="@color/azzurro"
android:paddingTop="@dimen/dimen8"
android:text="@string/conferma"
android:textAlignment="center"
android:textColor="#FFFFFF"
android:elevation="@dimen/dimen8"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
>
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<View
android:id="@+id/view1"
android:layout_width="0dp"
android:layout_height="48dp"
android:background="@color/white"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<View
android:id="@+id/view2"
android:layout_width="0dp"
android:layout_height="48dp"
android:layout_marginTop="16dp"
android:background="@color/white"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/view1" />
<View
android:id="@+id/view3"
android:layout_width="0dp"
android:layout_height="48dp"
android:layout_marginTop="16dp"
android:background="@color/white"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/view2" />
<TextView
android:id="@+id/mostraPreferiti"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:text="@string/mostraPreferiti"
android:textColor="@color/black"
android:textSize="18sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/view3" />
<TextView
android:id="@+id/creditiEcm"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="10dp"
android:text="@string/creditiECM"
android:textColor="@color/black"
android:textSize="18sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/view1" />
<EditText
android:id="@+id/editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:inputType="number"
android:hint="@string/zero"
android:text="@string/editText"
android:textStyle="bold"
app:layout_constraintStart_toEndOf="@+id/creditiEcm"
app:layout_constraintTop_toTopOf="@+id/view1"
android:autofillHints="" />
<Button
android:id="@+id/buttonMeno"
android:layout_width="36dp"
android:layout_height="36dp"
android:layout_marginTop="6dp"
android:layout_marginEnd="16dp"
android:background="@drawable/ic_remove_circle_azzurro_24dp"
android:gravity="center"
android:textAlignment="gravity"
android:textColor="@color/azzurro"
android:textSize="24sp"
app:layout_constraintEnd_toStartOf="@+id/buttonPiu"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="@+id/buttonPiu"
android:layout_width="36dp"
android:layout_height="36dp"
android:layout_marginTop="6dp"
android:layout_marginEnd="32dp"
android:background="@drawable/ic_add_circle_azzurro_24dp"
android:gravity="center"
android:textAlignment="gravity"
android:textColor="@color/azzurro"
android:textSize="24sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/mostraCorsiPassati"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:text="@string/mostraCorsiPassati"
android:textColor="@color/black"
android:textSize="18sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="@+id/view2"
app:layout_constraintTop_toTopOf="@+id/view2" />
<Switch
android:id="@+id/switch_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginEnd="32dp"
android:theme="@style/SwitchTheme"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/view2" />
<Switch
android:id="@+id/switch_button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginEnd="32dp"
android:theme="@style/SwitchTheme"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/view3" />
<android.support.v7.widget.AppCompatTextView
android:id="@+id/professioni"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="90dp"
android:layout_marginEnd="8dp"
android:text="@string/professione2"
android:textColor="@color/black"
android:textSize="18sp"
android:textStyle="bold"
app:fontFamily="@font/sanfrancisco"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/mostraCorsiPassati" />
<SearchView
android:id="@+id/searchBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:background="#fff"
android:elevation="2dp"
app:layout_constraintHorizontal_bias="0.557"
app:layout_constraintLeft_toRightOf="parent"
app:layout_constraintRight_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="@+id/professioni"
app:queryHint="Cerca..">
</SearchView>
<android.support.v7.widget.RecyclerView
android:id="@+id/listProfessioni"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/searchBar"
android:orientation="vertical"
>
</android.support.v7.widget.RecyclerView>
<TextView
android:id="@+id/professioniNonDisponibili"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:text="@string/professioniNonDisponibili"
android:textAlignment="center"
android:textColor="@color/gray"
android:textSize="18sp"
app:autoSizeMaxTextSize="@dimen/dimen20"
app:autoSizeMinTextSize="@dimen/dimen12"
app:autoSizeTextType="uniform"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/error" />
<ImageView
android:id="@+id/error"
android:layout_width="@dimen/dimen80"
android:layout_height="@dimen/dimen80"
android:layout_marginStart="8dp"
android:layout_marginTop="32dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:background="@drawable/ic_error_outline_gray_24dp"
android:contentDescription="@string/TODO"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/searchBar"
app:layout_constraintVertical_bias="0.105" />
<ProgressBar
android:id="@+id/progress"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_marginStart="8dp"
android:layout_marginTop="24dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:alpha="1"
android:minWidth="80dp"
android:minHeight="80dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/searchBar"
app:layout_constraintVertical_bias="0.168" />
</android.support.constraint.ConstraintLayout>
</android.support.v4.widget.NestedScrollView>
Upvotes: 5
Views: 5661
Answers (2)
Meeran Tariq
Reputation: 1436
According to Ali Ahmed's answer, a ScrollView doesn't scroll if you have a ConstraintLayout inside it. Well that's not true. I have been using ConstraintLayout inside ScrollView and everything works perfectly fine. Well the problem with the code that you posted is that you are using 0dpas the layout_height of your RecyclerView. 0dp means match_parent. You should be using wrap_content as your layout_height. So that the RecyclerView expands its height according to the elements in it. Doing so will make your code work fine.
Upvotes: 8
Ali Ahmed
Reputation: 2178
As i answered in comments
For Someone other facing same problem. This might help.
For some reasons ScrollView doesn't scroll when having ConstraintLayout inside it.
For Workaround we can use LinearLayout or RelativeLayoutinstead of ConstraintLayout inside ScrollView. OR
As OP does put the ConstraintLayout inside Linear or Relative Layout does the trick.
Upvotes: 10
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