Java 顶部的静态按钮滚动查看android studio
我想创建一个活动,在屏幕底部有两个按钮,上面有一个滚动视图。在滚动视图中,我需要一个下拉菜单,用户可以在其中选择一系列练习。如何将滚动视图置于按钮上方,并在滚动时使它们保持在同一位置 活动代码Java 顶部的静态按钮滚动查看android studio,java,android,button,android-activity,scrollview,Java,Android,Button,Android Activity,Scrollview,我想创建一个活动,在屏幕底部有两个按钮,上面有一个滚动视图。在滚动视图中,我需要一个下拉菜单,用户可以在其中选择一系列练习。如何将滚动视图置于按钮上方,并在滚动时使它们保持在同一位置 活动代码 <?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/and
<?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/ConstraintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".WorkoutsCreater">
<TextView
android:id="@+id/NameWorkoutTextView"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="20dp"
android:layout_marginLeft="20dp"
android:gravity="center"
android:text="Name of Workout:"
android:textAppearance="@style/TextAppearance.AppCompat.Body1"
android:textSize="15dp"
app:layout_constraintBottom_toBottomOf="@+id/NameWorkoutInput"
app:layout_constraintEnd_toStartOf="@+id/NameWorkoutInput"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/NameWorkoutInput" />
<TextView
android:id="@+id/nameExercise1"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="20dp"
android:gravity="center"
android:text="Exercise 1:"
android:textAppearance="@style/TextAppearance.AppCompat.Body1"
android:textSize="15dp"
app:layout_constraintBottom_toBottomOf="@id/spinnerExercise1"
app:layout_constraintEnd_toStartOf="@+id/NameWorkoutInput"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/spinnerExercise1" />
<EditText
android:id="@+id/NameWorkoutInput"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:layout_marginEnd="40dp"
android:layout_marginRight="40dp"
android:inputType="text"
android:maxLength="20"
android:textSize="15dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/NameWorkoutTextView"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="@+id/BtnNew"
android:layout_width="77dp"
android:layout_height="77dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="16dp"
android:background="@drawable/circle_plus"
android:clickable="true"
android:focusable="true"
android:foreground="@drawable/ic_add_white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:srcCompat="@drawable/ic_add_white" />
<Button
android:id="@+id/BtnSave"
android:layout_width="77dp"
android:layout_height="77dp"
android:layout_marginStart="16dp"
android:layout_marginBottom="16dp"
android:background="@drawable/rounded_corners"
android:foreground="@drawable/ic_save_white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<Spinner
android:id="@+id/spinnerExercise1"
android:layout_width="175dp"
android:layout_height="43dp"
android:layout_marginTop="50dp"
android:layout_marginEnd="40dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/NameWorkoutInput" />
如果要添加位于两个按钮上方的scrollview,可以在constraintlayout中添加嵌套的scrollview
<?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/ConstraintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".WorkoutsCreater">
<androidx.core.widget.NestedScrollView
android:layout_width="0dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toTopOf="@id/BtnNew"
android:layout_height="0dp"
app:layout_constraintTop_toTopOf="parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/NameWorkoutTextView"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="20dp"
android:layout_marginLeft="20dp"
android:gravity="center"
android:text="Name of Workout:"
android:textAppearance="@style/TextAppearance.AppCompat.Body1"
android:textSize="15dp"
app:layout_constraintBottom_toBottomOf="@+id/NameWorkoutInput"
app:layout_constraintEnd_toStartOf="@+id/NameWorkoutInput"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/NameWorkoutInput" />
<TextView
android:id="@+id/nameExercise1"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="20dp"
android:gravity="center"
android:text="Exercise 1:"
android:textAppearance="@style/TextAppearance.AppCompat.Body1"
android:textSize="15dp"
app:layout_constraintBottom_toBottomOf="@id/spinnerExercise1"
app:layout_constraintEnd_toStartOf="@+id/NameWorkoutInput"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/spinnerExercise1" />
<EditText
android:id="@+id/NameWorkoutInput"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:layout_marginEnd="40dp"
android:layout_marginRight="40dp"
android:inputType="text"
android:maxLength="20"
android:textSize="15dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/NameWorkoutTextView"
app:layout_constraintTop_toTopOf="parent" />
<Spinner
android:id="@+id/spinnerExercise1"
android:layout_width="175dp"
android:layout_height="43dp"
android:layout_marginTop="50dp"
android:layout_marginEnd="40dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/NameWorkoutInput" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>
<Button
android:id="@+id/BtnNew"
android:layout_width="77dp"
android:layout_height="77dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="16dp"
android:background="@drawable/ic_add_circle"
android:clickable="true"
android:focusable="true"
android:foreground="@drawable/ic_add_white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:srcCompat="@drawable/ic_add_white" />
<Button
android:id="@+id/BtnSave"
android:layout_width="77dp"
android:layout_height="77dp"
android:layout_marginStart="16dp"
android:layout_marginBottom="16dp"
android:background="@drawable/ic_remove_red_ba0a00"
android:foreground="@drawable/ic_save_white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>