问题描述
此处是Android Studio中的新手。
我正尝试将本地草药植物列表设为a-z ，并且还想过是否只为植物的第一个字母的每个字母制作另一个标签。然后我意识到我可以进行滚动浏览。因此，对于我来说插入滚动视图已经很晚了，我知道这将对我的代码造成问题。
现在我已将其放入.xml文件，我的应用每次运行时都被强制关闭。
该如何解决？ 谢谢！
（此处为代码）：
<?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:id="@+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:orientation="vertical"
tools:context="com.mobprog.herbalite.MainActivity">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageButton
android:id="@+id/abaniko_pic"
android:layout_width="180dp"
android:layout_height="145dp"
android:layout_marginStart="6dp"
android:layout_marginTop="6dp"
android:adjustViewBounds="true"
android:background="@drawable/stroke"
app:srcCompat="@drawable/kjadhskjadhsa"
app:layout_constrainedWidth="true"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintHorizontal_bias="0.022"
/>
<TextView
android:id="@+id/abanico_text"
android:layout_width="180dp"
android:layout_height="30dp"
android:layout_marginStart="8dp"
android:background="@drawable/stroke"
android:fontFamily="sans-serif-condensed-medium"
android:gravity="center"
android:text="Abaniko"
android:textAlignment="center"
android:textColor="#000000"
android:textSize="20dp"
app:layout_constrainedHeight="true"
app:layout_constrainedWidth="true"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/abaniko_pic"
app:layout_constraintHorizontal_bias="0.013"
/>
<ImageButton
android:id="@+id/alim_pic"
android:layout_width="180dp"
android:layout_height="145dp"
android:layout_marginTop="6dp"
android:layout_marginEnd="2dp"
android:adjustViewBounds="true"
android:background="@drawable/stroke"
android:padding="5dp"
app:layout_constrainedHeight="true"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.950"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/alim"
/>
<TextView
android:id="@+id/alim_text"
android:layout_width="180dp"
android:layout_height="30dp"
android:layout_marginStart="8dp"
android:background="@drawable/stroke"
android:fontFamily="sans-serif-condensed-medium"
android:gravity="center"
android:text="Alim"
android:textAlignment="center"
android:textColor="#000000"
android:textSize="20dp"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.941"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/alim_pic"
/>
<ImageButton
android:id="@+id/alinang_pic"
android:layout_width="180dp"
android:layout_height="145dp"
android:layout_marginStart="6dp"
android:layout_marginTop="195dp"
android:adjustViewBounds="true"
android:background="@drawable/stroke"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.022"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/alinang"
/>
<TextView
android:id="@+id/alinang_text"
android:layout_width="180dp"
android:layout_height="30dp"
android:layout_marginStart="8dp"
android:background="@drawable/stroke"
android:fontFamily="sans-serif-condensed-medium"
android:gravity="center"
android:text="Alinang"
android:textAlignment="center"
android:textColor="#000000"
android:textSize="20dp"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.013"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/alinang_pic"
/>
<ImageButton
android:id="@+id/ampalaya_pic"
android:layout_width="180dp"
android:layout_height="145dp"
android:layout_marginTop="195dp"
android:layout_marginEnd="2dp"
android:adjustViewBounds="true"
android:background="@drawable/stroke"
android:padding="5dp"
app:layout_constrainedHeight="true"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.938"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ampalaya" />
<TextView
android:id="@+id/ampalaya_text"
android:layout_width="180dp"
android:layout_height="30dp"
android:layout_marginStart="8dp"
android:background="@drawable/stroke"
android:fontFamily="sans-serif-condensed-medium"
android:gravity="center"
android:text="Ampalaya"
android:textAlignment="center"
android:textColor="#000000"
android:textSize="20dp"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.928"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/ampalaya_pic"
/>
<ImageButton
android:id="@+id/ambal_pic"
android:layout_width="180dp"
android:layout_height="145dp"
android:layout_marginTop="385dp"
android:layout_marginEnd="2dp"
android:adjustViewBounds="true"
android:background="@drawable/stroke"
android:padding="5dp"
app:layout_constrainedHeight="true"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.048"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ambal" />
<TextView
android:id="@+id/ambal_text"
android:layout_width="180dp"
android:layout_height="30dp"
android:layout_marginStart="8dp"
android:background="@drawable/stroke"
android:fontFamily="sans-serif-condensed-medium"
android:gravity="center"
android:text="Ambal"
android:textAlignment="center"
android:textColor="#000000"
android:textSize="20dp"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.013"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/ambal_pic" />
<ImageButton
android:id="@+id/anabo_pic"
android:layout_width="180dp"
android:layout_height="145dp"
android:layout_marginTop="385dp"
android:layout_marginEnd="2dp"
android:adjustViewBounds="true"
android:background="@drawable/stroke"
android:padding="5dp"
app:layout_constrainedHeight="true"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.938"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/anabo" />
<TextView
android:id="@+id/anabo_text"
android:layout_width="180dp"
android:layout_height="30dp"
android:layout_marginStart="8dp"
android:background="@drawable/stroke"
android:fontFamily="sans-serif-condensed-medium"
android:gravity="center"
android:text="Anabo"
android:textAlignment="center"
android:textColor="#000000"
android:textSize="20dp"
app:layout_constrainedWidth="true"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.928"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/anabo_pic" />
</ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>
解决方法
首先，您必须在滚动视图中将父布局设置为线性布局。
像这样
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
//set here all you child widgets
</LinearLayout>
</ScrollView>