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滾動回收站視圖時如何隱藏 TextView？

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

 原文  2019-11-03 13:36:43  6   1    android/ android-layout/ android-recyclerview

問題描述

我正在為本地數據庫開發應用程序界面。 在我打算展示客戶信息的片段中，我希望能夠看到客戶的歷史記錄。 滾動客戶歷史記錄時如何隱藏客戶信息？ （滾動recyclerview時如何隱藏多個文本視圖以使recyclerview占據所有屏幕？）

我在網上遇到的所有解決方案都沒有真正解決我的問題。 我是 android 的新手，所以我確信這非常簡單。

我有的

當我滾動得足夠遠時我想要什么

<?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>

編輯：

在Md. Asaduzzaman的幫助下，我最終得到了 de xml 的代碼（注意對操作按鈕的更改 - 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 個解決方案

解決方案1
 0 已采納  2019-11-03 13:59:14

您可以使用NestedScrollView使整個視圖可滾動，當您開始滾動時隱藏頂視圖。

<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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