约束视图内的ListView被裁剪且不滚动 [英] ListView inside constraint view gets clipped and not scrolling
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问题描述
我在ConstraintLayout内有一个listview,我看它应该是可以自动滚动的,但是列表只是在底部被截断了,还有更多要显示的项目,并且它不是可滚动的,我不知道Im是否设置了一些归因于错误,或者是否必须添加某些内容以使Listview滚动??
I have a listview inside my ConstraintLayout and I read its supposed to automatically be scrollable, but the list just gets cut-off at the bottom with more items left to be displayed and its not scrollable, I dont know if Im setting some atribute wrong or if I have to add something for listview to scroll??
这是我的代码
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/special_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Today is:"
android:textSize="24sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintStart_toStartOf="parent"
android:visibility="gone"
app:layout_constraintTop_toTopOf="parent"/>
<TextView
android:id="@+id/date_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="The date is:"
android:textSize="24sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/special_text_view"/>
<TextView
android:id="@+id/oc_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@android:color/white"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="The day of the omer is:"
android:visibility="gone"
android:textSize="24sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/date_text_view"/>
<ListView
android:id="@+id/list_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="24dp"
android:layout_marginBottom="24dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@id/oc_text_view"
app:layout_constraintBottom_toBottomOf="parent">
</ListView>
</android.support.constraint.ConstraintLayout>
谢谢
推荐答案
您需要像这样关闭链条:
You need to close the chain, like so:
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/special_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="Today is:"
android:textColor="@android:color/white"
android:textSize="24sp"
android:visibility="gone"
app:layout_constraintBottom_toTopOf="@id/date_text_view"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/date_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="The date is:"
android:textColor="@android:color/white"
android:textSize="24sp"
app:layout_constraintBottom_toTopOf="@id/oc_text_view"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/special_text_view" />
<TextView
android:id="@+id/oc_text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="The day of the omer is:"
android:textColor="@android:color/white"
android:textSize="24sp"
android:visibility="gone"
app:layout_constraintBottom_toTopOf="@id/list_view"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/date_text_view" />
<ListView
android:id="@+id/list_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginBottom="24dp"
android:layout_marginTop="24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/oc_text_view">
</ListView>
</android.support.constraint.ConstraintLayout>
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