我有一个RecyclerView
,它不会在ConstraintLayout
内滚动,项目已设置但它们不动。我相信问题出在XML中,因为信息就在那里,第二项被删减了。谁能知道我的xml
布局是否有问题
这是我的product.xml
,其中有RecyclerView
<?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:background="#fafafa"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="200dp"
android:background="@color/colorBackgroundProducts"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="@+id/textView24"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:layout_marginEnd="32dp"
android:gravity="center"
android:text="You need at leat € 1.000 on your Account Balance to add an Investment Account"
android:textColor="#5e657b"
android:textSize="13sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.cardview.widget.CardView
android:id="@+id/cardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="80dp"
android:layout_marginEnd="16dp"
app:cardCornerRadius="20dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/textView25"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="24dp"
android:layout_marginBottom="24dp"
android:text="My Account Balance"
android:textColor="#5e657b"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView26"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:text="€ 5.000,00"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/textView25"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/textView25" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<TextView
android:id="@+id/textView27"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="+ Add fund to your account "
android:textColor="#00ce7c"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="@+id/cardView"
app:layout_constraintStart_toStartOf="@+id/cardView"
app:layout_constraintTop_toBottomOf="@+id/cardView" />
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="8dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/constraintLayout">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/productsRv"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:background="@color/colorWhite"
android:layoutAnimation="@anim/layout_animation_fall_down"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:spanCount="1"
tools:listitem="@layout/row_product" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
这是我的行产品,其中具有项目布局
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView 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_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginBottom="40dp"
app:cardCornerRadius="20dp"
android:layout_height="240dp">
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_marginTop="20dp"
android:layout_height="wrap_content">
<Button
android:id="@+id/percentage_tae"
android:layout_width="74dp"
android:layout_height="37dp"
android:layout_marginStart="16dp"
android:text="2,5% TAE"
android:textColor="@color/blank"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/account_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:text="My Account"
android:textStyle="bold"
android:textColor="#0a0f35"
android:textSize="17sp"
app:layout_constraintBottom_toBottomOf="@+id/percentage_tae"
app:layout_constraintStart_toEndOf="@+id/percentage_tae"
app:layout_constraintTop_toTopOf="@+id/percentage_tae" />
<TextView
android:id="@+id/conditionsButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:text="Conditions"
android:textColor="@color/colorIban"
app:layout_constraintBottom_toBottomOf="@+id/account_name"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/account_name" />
<TextView
android:id="@+id/textView29"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="23dp"
android:text="Interest payment period"
app:layout_constraintStart_toStartOf="@+id/percentage_tae"
app:layout_constraintTop_toBottomOf="@+id/percentage_tae" />
<TextView
android:id="@+id/interestPaymentPeriodText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Daily"
app:layout_constraintBottom_toBottomOf="@+id/textView29"
app:layout_constraintEnd_toEndOf="@+id/conditionsButton"
app:layout_constraintTop_toTopOf="@+id/textView29" />
<TextView
android:id="@+id/textView31"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:text="Deposit maturity"
app:layout_constraintStart_toStartOf="@+id/textView29"
app:layout_constraintTop_toBottomOf="@+id/textView29" />
<TextView
android:id="@+id/deposityMaturiryInvestmentText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:text="1 Year"
app:layout_constraintBottom_toBottomOf="@+id/textView31"
app:layout_constraintEnd_toEndOf="@+id/interestPaymentPeriodText"
app:layout_constraintTop_toTopOf="@+id/textView31" />
<TextView
android:id="@+id/textView33"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:text="Minimium Investment"
app:layout_constraintStart_toStartOf="@+id/textView31"
app:layout_constraintTop_toBottomOf="@+id/textView31" />
<Button
android:id="@+id/addInvestmentAccount"
android:layout_width="0dp"
android:layout_height="52dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="16dp"
android:background="@drawable/selector_button_green"
android:text="Add investment account"
android:textAllCaps="false"
android:textColor="@color/blank"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="@+id/minimumInvestmentText"
app:layout_constraintStart_toStartOf="@+id/textView33"
app:layout_constraintTop_toBottomOf="@+id/textView33" />
<TextView
android:id="@+id/minimumInvestmentText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="€ 1.000"
app:layout_constraintBottom_toBottomOf="@+id/textView33"
app:layout_constraintEnd_toEndOf="@+id/deposityMaturiryInvestmentText"
app:layout_constraintTop_toTopOf="@+id/textView33"
app:layout_constraintVertical_bias="0.0" />
<View
android:id="@+id/view5"
android:layout_width="0dp"
android:layout_height="1dp"
android:layout_marginTop="13dp"
android:background="#e8e8e8"
app:layout_constraintEnd_toEndOf="@+id/conditionsButton"
app:layout_constraintStart_toStartOf="@+id/percentage_tae"
app:layout_constraintTop_toBottomOf="@+id/percentage_tae" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
答案 0 :(得分:0)
尝试以下代码:
<?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">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="200dp"
android:background="@color/colorBackgroundProducts"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="@+id/textView24"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:layout_marginEnd="32dp"
android:gravity="center"
android:text="You need at leat € 1.000 on your Account Balance to add an Investment Account"
android:textColor="#5e657b"
android:textSize="13sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.cardview.widget.CardView
android:id="@+id/cardView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="80dp"
android:layout_marginEnd="16dp"
app:cardCornerRadius="20dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="@+id/textView25"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="24dp"
android:layout_marginBottom="24dp"
android:text="My Account Balance"
android:textColor="#5e657b"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView26"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:text="€ 5.000,00"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/textView25"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/textView25" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
<TextView
android:id="@+id/textView27"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="+ Add fund to your account "
android:textColor="#00ce7c"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="@+id/cardView"
app:layout_constraintStart_toStartOf="@+id/cardView"
app:layout_constraintTop_toBottomOf="@+id/cardView" />
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/productsRv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:background="@color/colorWhite"
android:layoutAnimation="@anim/layout_animation_fall_down"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/constraintLayout"
app:spanCount="1"
tools:listitem="@layout/row_product" />
</androidx.constraintlayout.widget.ConstraintLayout>
希望它可以为您提供帮助。
答案 1 :(得分:0)
使用约束布局的目的是删除所有不必要的布局嵌套。
也不建议在ConstraintLayout中使用match_parent
,而是使用match_constraint
(0dp
)并将其约束为parent
。
如果您需要一些“视图”来创建约束点,则只需输入准则即可。
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.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="#F0CD"
android:orientation="vertical">
<TextView
android:id="@+id/textView24"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="32dp"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:gravity="center"
android:text="You need at leat € 1.000 on your Account Balance to add an Investment Account"
android:textColor="#5e657b"
android:textSize="13sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<android.support.v7.widget.CardView
android:id="@+id/cardView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:layout_marginStart="16dp"
android:layout_marginTop="80dp"
app:cardCornerRadius="20dp"
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">
<TextView
android:id="@+id/textView25"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="24dp"
android:layout_marginStart="16dp"
android:layout_marginTop="24dp"
android:text="My Account Balance"
android:textColor="#5e657b"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView26"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:text="€ 5.000,00"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="@+id/textView25"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/textView25" />
</android.support.constraint.ConstraintLayout>
</android.support.v7.widget.CardView>
<TextView
android:id="@+id/textView27"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="+ Add fund to your account "
android:textColor="#00ce7c"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="@+id/cardView"
app:layout_constraintStart_toStartOf="@+id/cardView"
app:layout_constraintTop_toBottomOf="@+id/cardView" />
<android.support.v7.widget.RecyclerView
android:id="@+id/productsRv"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/guideline2"
app:spanCount="1"
tools:listitem="@layout/row_product" />
<android.support.constraint.Guideline
android:id="@+id/guideline2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_begin="200dp" />
</android.support.constraint.ConstraintLayout>