Question

工具栏上的标题不会随着折叠的工具栏布局而扩展和折叠，只是停留在导航抽屉按钮旁边。正在折叠的作品，我只需要标题即可使其与工具栏的扩展和折叠紧密相关，任何人都可以在这个问题上提供帮助

我尝试使用以下代码以编程方式设置标题，但无济于事。变量已使用findViewById CollapsingToolBarLayout.setTitle（“ title）;

绑定到布局

<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
    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/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:openDrawer="left">

    <RelativeLayout
        style="@style/MatchParentMatchParent"
        android:background="@color/color_white">

        <androidx.coordinatorlayout.widget.CoordinatorLayout
            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:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true">

            <com.google.android.material.appbar.AppBarLayout
                android:layout_width="match_parent"
                android:layout_height="190dp"
                android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
                android:fitsSystemWindows="true">

                <com.google.android.material.appbar.CollapsingToolbarLayout
                    android:id="@+id/toolbar_layout_collapse"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    app:layout_scrollFlags="scroll|exitUntilCollapsed"
                    android:fitsSystemWindows="true">
          <androidx.appcompat.widget.Toolbar
              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"
              style="@style/ToolBar"
              app:layout_collapseMode="pin"
              app:layout_scrollFlags="scroll|enterAlways|snap"
              app:popupTheme="@style/ThemeOverlay.AppCompat.Dark"                    
              app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

    <androidx.percentlayout.widget.PercentRelativeLayout
        style="@style/MatchParentMatchParent">
        <ImageView
            android:id="@+id/home"
            style="@style/WrapContentWrapContent"
            android:layout_centerVertical="true"
            android:layout_marginTop="2dp"
            android:layout_marginBottom="2dp"
            android:background="@drawable/btn_back_selector"
            android:contentDescription="@string/desc_back_button"
            android:padding="15dp"
            android:src="@drawable/vd_nav_drawer"
            app:layout_marginLeftPercent="4%"/>

        <TextView
            android:id="@+id/text_toolbar_title"
            style="@style/ToolBarTitle"
            android:layout_centerVertical="true"
            android:layout_toRightOf="@+id/home"
            android:layout_marginLeft="@dimen/dimen_default_padding"
            android:gravity="left"/>

        <RelativeLayout
            android:id="@+id/relative_toolbar_buttons"
            style="@style/WrapContentWrapContent"
            android:layout_width="90dp"
            android:layout_height="match_parent"
            android:layout_alignParentEnd="true"
            android:layout_centerVertical="true"
            android:importantForAccessibility="no"
            android:scaleType="center"
            app:layout_marginRightPercent="4%">

            <ImageView
                android:id="@+id/image_toolbar_primary_button"
                style="@style/WrapContentWrapContent"
                android:layout_centerVertical="true"
                android:layout_alignParentStart="true"
                android:padding="@dimen/dimen_small_padding"
                android:visibility="invisible"/>

            <ImageView
                android:id="@+id/image_toolbar_secondary_button"
                style="@style/WrapContentWrapContent"
                android:layout_centerVertical="true"
                android:layout_alignParentEnd="true"
                android:layout_marginRight="@dimen/dimen_small_padding"
                android:padding="@dimen/dimen_small_padding"
                android:visibility="invisible"
                android:src="@drawable/vd_outline_info_24dp"/>

            <TextView
                android:id="@+id/text_toolbar_button"
                style="@style/MatchParentMatchParent"
                android:gravity="center"
                android:textAllCaps="true"
                android:textColor="@color/color_toolbar_text"
                android:textSize="14sp"
                android:textStyle="bold"
                android:visibility="invisible"/>

        </RelativeLayout>
    </androidx.percentlayout.widget.PercentRelativeLayout>
 </androidx.appcompat.widget.Toolbar>                
 </com.google.android.material.appbar.CollapsingToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>

<androidx.core.widget.NestedScrollView 
    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:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:showIn="@layout/app_bar_main">

    <FrameLayout
        android:id="@+id/fragment_container"
        style="@style/MatchParentMatchParent"
        />
</androidx.core.widget.NestedScrollView>
</androidx.coordinatorlayout.widget.CoordinatorLayout>

    </RelativeLayout>
    <com.google.android.material.navigation.NavigationView
        android:id="@+id/left_drawer"
        android:layout_width="280dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="@color/color_white"
        android:choiceMode="singleChoice"
        android:divider="@android:color/transparent"
        android:dividerHeight="0dp">

        <androidx.percentlayout.widget.PercentRelativeLayout
            style="@style/MatchParentMatchParent">

            <TextView
                style="@style/WrapContentWrapContent"
                android:fontFamily="sans-serif"
                android:paddingStart="50dp"
                android:paddingEnd="50dp"
                android:text="@string/title_welcome"
                android:textColor="@color/color_dark"
                android:textSize="25sp"
                app:layout_marginTopPercent="10%"/>

            <TextView
                style="@style/WrapContentWrapContent"
                android:layout_below="@id/text_nav_drawer_name"
                android:fontFamily="sans-serif"
                android:paddingStart="50dp"
                android:paddingEnd="50dp"
                android:text="@string/msg_available_passes"
                android:textColor="@color/color_blue"
                android:textSize="12sp"
                app:layout_marginBottomPercent="6%"
                app:layout_marginTopPercent="2%" />


            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentZeroHeight"
                android:layout_below="@id/text_nav_drawer_message"
                android:importantForAccessibility="no"
                app:layout_heightPercent="7.1%"
                android:visibility="gone">

                <View
                    style="@style/MatchParentZeroHeight"
                    android:background="@color/color_grey"
                    app:layout_heightPercent="1%"/>

                <TextView
                    style="@style/NavMenuTextButton"
                   />

                <TextView
                    android:layout_width="16dp"
                    android:layout_height="16dp"
                    android:layout_alignParentEnd="true"
                    android:layout_marginTop="14.5dp"
                    android:layout_marginEnd="90dp"
                    android:background="@drawable/textview_round_secondary"
                    android:fontFamily="sans-serif"
                    android:gravity="center"
                    android:textColor="@color/color_white"
                    android:textSize="10sp"/>

            </androidx.percentlayout.widget.PercentRelativeLayout>

            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentZeroHeight"
                android:importantForAccessibility="no"
                app:layout_heightPercent="7.1%"
                android:visibility="gone">

                <View
                    style="@style/MatchParentZeroHeight"
                    android:background="@color/color_grey"
                    app:layout_heightPercent="1%"/>

                <TextView
                    style="@style/NavMenuTextButton"/>

            </androidx.percentlayout.widget.PercentRelativeLayout>

            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentZeroHeight"
                android:layout_below="@id/percent_menu_buy_passes"
                android:importantForAccessibility="no"
                app:layout_heightPercent="7.1%"
                android:visibility="gone">


                <View                  
                    android:id="@+id/view_menu_divider_planner"
                    style="@style/MatchParentZeroHeight"
                    android:background="@color/color_grey"
                    app:layout_heightPercent="1%"/>

                <TextView
                    style="@style/NavMenuTextButton"
                    android:layout_below="@id/view_menu_divider_planner"
                    android:text="@string/action_trip_planner"/>

            </androidx.percentlayout.widget.PercentRelativeLayout>

            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentZeroHeight"
                android:layout_below="@id/percent_menu_planner"
                android:importantForAccessibility="no"
                app:layout_heightPercent="7.1%"
                android:visibility="gone">

                <View
                    style="@style/MatchParentZeroHeight"
                    android:background="@color/color_grey"
                    app:layout_heightPercent="1%"/>

                <TextView
                    style="@style/NavMenuTextButton"
                    android:layout_below="@id/view_menu_divider_my_trips"
                    android:contentDescription="@string/desc_my_trips_button"
                    android:text="@string/action_my_trips"/>

            </androidx.percentlayout.widget.PercentRelativeLayout>

            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentZeroHeight"
                android:layout_below="@id/percent_menu_my_trips"
                android:importantForAccessibility="no"
                app:layout_heightPercent="7.1%"
                android:visibility="gone">

                <View
                    style="@style/MatchParentZeroHeight"
                    android:background="@color/color_grey"
                    app:layout_heightPercent="1%"/>

                <TextView
                    style="@style/NavMenuTextButton"
                    android:layout_below="@id/view_menu_divider_favorites"
                    android:text="@string/action_favorites"/>

            </androidx.percentlayout.widget.PercentRelativeLayout>

            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentZeroHeight"
                android:layout_below="@id/percent_menu_favorites"
                android:importantForAccessibility="no"
                app:layout_heightPercent="7.1%"
                android:visibility="gone">

                <View
                    style="@style/MatchParentZeroHeight"
                    android:background="@color/color_grey"
                    app:layout_heightPercent="1%"/>

                <TextView
                    style="@style/NavMenuTextButton"
                    android:layout_below="@id/view_menu_divider_stops_nearby"
                    android:contentDescription="@string/desc_nearby_stops_button"
                    android:text="@string/title_nearby_stops"/>

            </androidx.percentlayout.widget.PercentRelativeLayout>

            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentZeroHeight"
                android:layout_below="@id/percent_menu_stops_nearby"
                android:importantForAccessibility="no"
                app:layout_heightPercent="7.1%">

                <View
                    style="@style/MatchParentZeroHeight"
                    android:background="@color/color_grey"
                    app:layout_heightPercent="1%"/>

                <TextView
                    style="@style/NavMenuTextButton"
                  android:layout_below="@id/view_menu_divider_settings"
                    android:text="@string/action_settings"/>

            </androidx.percentlayout.widget.PercentRelativeLayout>

            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentWrapContent"
                android:importantForAccessibility="no"
                android:visibility="gone"
                tools:visibility="visible"
                app:layout_heightPercent="7.1%"
                app:layout_marginTopPercent="69.0%">

                <ImageView
                    android:layout_width="100dp"
                    android:layout_height="25dp"
                    android:layout_alignParentStart="true"
                    android:layout_marginStart="50dp"
                    android:layout_marginTop="8dp"/>

                <ImageView
                    android:layout_width="25dp"
                    android:layout_height="25dp"
                    android:layout_alignParentRight="true"
                    android:layout_marginTop="8dp"
                    android:layout_marginEnd="20dp"
                />

            </androidx.percentlayout.widget.PercentRelativeLayout>
            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentWrapContent"
                android:importantForAccessibility="no"
                android:visibility="gone"
                tools:visibility="visible"
                app:layout_heightPercent="7.1%">

                <ImageView
                    android:layout_width="110dp"
                    android:layout_height="25dp"
                    android:layout_alignParentStart="true"
                    android:layout_marginStart="50dp"
                    android:layout_marginTop="8dp"/>

                <ImageView
                    android:layout_width="25dp"
                    android:layout_height="25dp"
                    android:layout_alignParentRight="true"
                    android:layout_marginTop="8dp"
                    android:layout_marginEnd="20dp"
                />

            </androidx.percentlayout.widget.PercentRelativeLayout>
            <androidx.percentlayout.widget.PercentRelativeLayout
                style="@style/MatchParentWrapContent"
                android:importantForAccessibility="no"
                android:visibility="gone"
                tools:visibility="visible"
                app:layout_heightPercent="7.1%"/>

                <ImageView
                    android:layout_width="80dp"
                    android:layout_height="25dp"
                    android:layout_alignParentStart="true"
                    android:layout_marginStart="50dp"
                    android:layout_marginTop="8dp"/>

                <ImageView
                    android:layout_width="25dp"
                    android:layout_height="25dp"
                    android:layout_alignParentRight="true"
                    android:layout_marginTop="8dp"
                    android:layout_marginEnd="20dp"
                    android:src="@drawable/black_link"
                />
                <View
                    style="@style/MatchParentZeroHeight"
                    android:layout_alignParentBottom="true"
                    android:background="@color/color_grey"
                    app:layout_heightPercent="1%"/>

            </androidx.percentlayout.widget.PercentRelativeLayout>
            <View
                android:id="@+id/view_menu_divider_settings_below"
                style="@style/MatchParentZeroHeight"
                android:layout_below="@id/percent_menu_settings"
                android:background="@color/color_grey"
                app:layout_heightPercent="0.1%"/>

            <TextView
                style="@style/WrapContentWrapContent"
                android:layout_centerHorizontal="true"
                android:fontFamily="sans-serif"
                android:textColor="@color/color_blue"
                android:textSize="13sp"
                app:layout_marginLeftPercent="15%"
                app:layout_marginTopPercent="92.5%"/>

        </androidx.percentlayout.widget.PercentRelativeLayout>

    </com.google.android.material.navigation.NavigationView>

</androidx.drawerlayout.widget.DrawerLayout>

Answer 1

您的xml代码中有更多视图，我需要花一些时间来修改它们，而不是我会提示您，因此请尝试对其进行修改。

xml代码

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout
    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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context=".activity.NewsReaderActivity">


<androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavi"

/>

<com.google.android.material.appbar.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

    <com.google.android.material.appbar.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="200dp"
            android:fitsSystemWindows="true"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleGravity="bottom"
            app:expandedTitleMarginEnd="@dimen/activity_horizontal_margin"
            app:expandedTitleMarginStart="@dimen/activity_horizontal_margin"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

        <ImageView
                android:id="@+id/toolbar_image"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:adjustViewBounds="true"
                android:contentDescription="@null"
                android:fitsSystemWindows="true"
                android:scaleType="centerCrop"
                android:src="@drawable/dabdamis" />

        <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_collapseMode="pin"
                app:popupTheme="@style/ThemeOverlay.AppCompat" />
    </com.google.android.material.appbar.CollapsingToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>

将其放入您的onCreate方法

setSupportActionBar(toolbar)

还将以下代码用作工具栏的标题

    //set title of the  toolbar
    collapsing_toolbar.setTitle= "Your Title"

collapsing_toolbar是我的CollapsinToolbar的ID，请使用findViewById

对其进行标识

折叠式工具栏问题标题停留在屏幕顶部而不折叠式Android

1 个答案: