[英]DialogFragment with fixed header, scrollable body and fixed footer
[英]How to set fixed header footer and scrollable body text in ConstraintLayout in android
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="@dimen/dp_16"
android:layout_marginTop="@dimen/dp_32"
android:layout_marginEnd="@dimen/dp_16"
android:layout_marginBottom="@dimen/dp_40"
android:focusableInTouchMode="true">
<TextView
android:id="@+id/tv_header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:lineSpacingExtra="4sp"
android:text="HEADER"
android:textColor="#333333"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ScrollView
android:id="@+id/scrollable"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/dp_18"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constrainedHeight="true"
android:layout_marginBottom="@dimen/dp_40"
app:layout_constraintTop_toBottomOf="@+id/tv_header">
<TextView
android:id="@+id/tv_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/very_long_text"
android:textColor="#666666"
android:textSize="16sp"
android:textStyle="normal" />
</ScrollView>
<TextView
android:id="@+id/tv_footer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:lineSpacingExtra="4sp"
android:text="Footer"
android:textColor="#00539f"
android:textSize="16sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
這是我的布局我想在底部的頂部固定頁腳上設置一個固定的 header 並在正文中設置可滾動的非常長的文本,但是當我使用我的代碼時,底部頁腳與正文重疊,任何人都可以建議我缺少哪些屬性我只想使用ConstraintLayout
沒有 Relative 或Linearlayout
您需要將 scrollView 的底部約束設置為頁腳的頂部約束。
<?xml version="1.0" encoding="utf-8"?><?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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="@dimen/dp_16"
android:layout_marginTop="@dimen/dp_32"
android:layout_marginEnd="@dimen/dp_16"
android:layout_marginBottom="@dimen/dp_40"
android:focusableInTouchMode="true">
<TextView
android:id="@+id/tv_header"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:lineSpacingExtra="4sp"
android:text="HEADER"
android:textColor="#333333"
android:textSize="20sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ScrollView
android:id="@+id/scrollable"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_marginTop="@dimen/dp_18"
android:layout_marginBottom="@dimen/dp_40"
app:layout_constrainedHeight="true"
app:layout_constraintBottom_toTopOf="@+id/tv_footer"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tv_header">
<TextView
android:id="@+id/tv_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/very_long_text"
android:textColor="#666666"
android:textSize="16sp"
android:textStyle="normal" />
</ScrollView>
<TextView
android:id="@+id/tv_footer"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:lineSpacingExtra="4sp"
android:text="Footer"
android:textColor="#00539f"
android:textSize="16sp"
android:textStyle="bold"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/scrollable" />
</androidx.constraintlayout.widget.ConstraintLayout>
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