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滚动回收站视图时如何隐藏 TextView？

[英]How to Hide TextView when Scrolling Recycler View?

 原文  2019-11-03 13:36:43  4   1    android/ android-layout/ android-recyclerview

问题描述

I am devoloping an app interface for a local data base.我正在为本地数据库开发应用程序界面。 In the fragment I intend to show the client's information, I want to be able to see the client's history.在我打算展示客户信息的片段中，我希望能够看到客户的历史记录。 How can I hide the clients information when scrolling the client's history?滚动客户历史记录时如何隐藏客户信息？ (How can I hide several Text Views when scrolling a recyclerview in order to that recyclerview occupies the all screen?) （滚动recyclerview时如何隐藏多个文本视图以使recyclerview占据所有屏幕？）

None of the solutions I encontered online really solve my problem.我在网上遇到的所有解决方案都没有真正解决我的问题。 I am new to android so I am sure this is something farely simple.我是 android 的新手，所以我确信这非常简单。

What I Have我有的

What I Want when I scroll far enough当我滚动得足够远时我想要什么

<?xml version="1.0" encoding="utf-8"?>
<layout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/main_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:background="@drawable/tab_layout">


        <com.google.android.material.floatingactionbutton.FloatingActionButton
            android:id="@+id/bt_add_history"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="bottom|end"
            android:layout_margin="16dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:scaleType="center"
            android:src="@drawable/ic_add"
            app:backgroundTint="@color/colorTextGrey"
            app:borderWidth="0dp"
            app:fabSize="mini"
            app:hoveredFocusedTranslationZ="0dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:maxImageSize="24dp"
            app:useCompatPadding="false" />

        <TextView
            android:id="@+id/tv_title_hist"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="24dp"
            android:layout_marginTop="16dp"
            android:fontFamily="@font/montserrat_semibold"
            android:text="@string/historico"
            android:textColor="#67739A"
            android:textSize="16sp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_obser" />

        <TextView
            android:id="@+id/tv_obser"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/observations"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_title_observ" />

        <TextView
            android:id="@+id/tv_title_observ"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="24dp"
            android:layout_marginTop="16dp"
            android:fontFamily="@font/montserrat_semibold"
            android:text="@string/observations"
            android:textColor="#67739A"
            android:textSize="16sp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_func" />

        <TextView
            android:id="@+id/tv_func"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/func"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_phone_number" />

        <TextView
            android:id="@+id/tv_phone_number"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/telemovel"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="1.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_birth_date" />

        <TextView
            android:id="@+id/tv_birth_date"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/dataNascimento"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_nome" />

        <TextView
            android:id="@+id/tv_nome"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/nome"
            android:textAlignment="center"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"/>

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/rv_history"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_title_hist" />

    </androidx.constraintlayout.widget.ConstraintLayout>

</layout>

EDIT :编辑：

With the help of Md. Asaduzzaman , I ended up with this code for de xml (notice the changes to the action button - I wanted it to float above everything):在Md. Asaduzzaman的帮助下，我最终得到了 de xml 的代码（注意对操作按钮的更改 - 我希望它浮在一切之上）：

<?xml version="1.0" encoding="utf-8"?>
<layout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <RelativeLayout
        android:id="@+id/mainview"
        android:layout_width="match_parent"
        android:layout_height="match_parent">


        <com.google.android.material.floatingactionbutton.FloatingActionButton
            android:id="@+id/bt_add_history"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignParentRight="true"
            android:layout_margin="16dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:scaleType="center"
            android:src="@drawable/ic_add"
            app:backgroundTint="@color/colorTextGrey"
            app:fabSize="mini"
            app:hoveredFocusedTranslationZ="0dp"
            app:maxImageSize="24dp"
            app:useCompatPadding="false"/>

    <androidx.core.widget.NestedScrollView android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fillViewport="true">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/main_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:background="@drawable/tab_layout">

        <TextView
            android:id="@+id/tv_title_hist"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="24dp"
            android:layout_marginTop="16dp"
            android:fontFamily="@font/montserrat_semibold"
            android:text="@string/historico"
            android:textColor="#67739A"
            android:textSize="16sp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_obser" />

        <TextView
            android:id="@+id/tv_obser"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/observations"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_title_observ" />

        <TextView
            android:id="@+id/tv_title_observ"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="24dp"
            android:layout_marginTop="16dp"
            android:fontFamily="@font/montserrat_semibold"
            android:text="@string/observations"
            android:textColor="#67739A"
            android:textSize="16sp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_func" />

        <TextView
            android:id="@+id/tv_func"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/func"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_phone_number" />

        <TextView
            android:id="@+id/tv_phone_number"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/telemovel"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="1.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_birth_date" />

        <TextView
            android:id="@+id/tv_birth_date"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/dataNascimento"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_nome" />

        <TextView
            android:id="@+id/tv_nome"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/nome"
            android:textAlignment="center"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"/>


        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/rv_history"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_title_hist" />

    </androidx.constraintlayout.widget.ConstraintLayout>

    </androidx.core.widget.NestedScrollView>

    </RelativeLayout>

</layout>

1 个解决方案

解决方案1
 0 已采纳  2019-11-03 13:59:14

You could use NestedScrollView to make the whole view scrollable, which hides the top view when you start scrolling.您可以使用NestedScrollView使整个视图可滚动，当您开始滚动时隐藏顶视图。

<androidx.core.widget.NestedScrollView android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/main_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:background="@drawable/tab_layout">


        <com.google.android.material.floatingactionbutton.FloatingActionButton
            android:id="@+id/bt_add_history"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="bottom|end"
            android:layout_margin="16dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            android:scaleType="center"
            android:src="@drawable/ic_add"
            app:backgroundTint="@color/colorTextGrey"
            app:borderWidth="0dp"
            app:fabSize="mini"
            app:hoveredFocusedTranslationZ="0dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:maxImageSize="24dp"
            app:useCompatPadding="false" />

        <TextView
            android:id="@+id/tv_title_hist"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="24dp"
            android:layout_marginTop="16dp"
            android:fontFamily="@font/montserrat_semibold"
            android:text="@string/historico"
            android:textColor="#67739A"
            android:textSize="16sp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_obser" />

        <TextView
            android:id="@+id/tv_obser"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/observations"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_title_observ" />

        <TextView
            android:id="@+id/tv_title_observ"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="24dp"
            android:layout_marginTop="16dp"
            android:fontFamily="@font/montserrat_semibold"
            android:text="@string/observations"
            android:textColor="#67739A"
            android:textSize="16sp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_func" />

        <TextView
            android:id="@+id/tv_func"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/func"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_phone_number" />

        <TextView
            android:id="@+id/tv_phone_number"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/telemovel"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="1.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_birth_date" />

        <TextView
            android:id="@+id/tv_birth_date"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/dataNascimento"
            android:textAlignment="center"
            android:textSize="14sp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_nome" />

        <TextView
            android:id="@+id/tv_nome"
            style="@style/CustomEditText"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:ems="10"
            android:hint="@string/nome"
            android:textAlignment="center"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"/>

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/rv_history"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_marginStart="8dp"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="8dp"
            android:layout_marginBottom="8dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_title_hist" />

    </androidx.constraintlayout.widget.ConstraintLayout>

</androidx.core.widget.NestedScrollView>

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