android – Viewpager被推出屏幕[CoordinatorLayout] [设计库]

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我有一个简单的应用程序与viewpager包含3个片段.在其中一个片段中,我有Recyclerview列表.向下滚动时,工具栏将折叠,并显示向上滚动时.我的问题是当工具栏折叠并且我向左/向右滚动时我会以编程方式展开它并且它会将viewpager向下推,而不是仅仅重叠它.这导致屏幕视图的不令人满意的位移.如何让工具栏与我的viewpager重叠,而不是在展开时将其向下推?
我做了一个问题 click的简短录音

这是我的main_layout:

<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:fab="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=".UI.MainActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/appBarLayouy"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay"
            app:layout_scrollFlags="scroll|enterAlways" />

        <android.support.design.widget.TabLayout
            android:id="@+id/sliding_tabs"
            android:layout_width="match_parent"
            android:layout_height="@dimen/tabsHeight"
            style="@style/NavigationTab"/>


    </android.support.design.widget.AppBarLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"/>


    <include layout="@layout/content_main"/>

    <com.getbase.floatingactionbutton.FloatingActionsMenu
        android:id="@+id/floatingActionMenu"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        fab:fab_addButtonColorNormal="@color/blood_orange"
        fab:fab_addButtonColorPressed="@color/dirtyWhite"
        fab:fab_addButtonPlusIconColor="@color/dirtyWhite"
        fab:fab_addButtonSize = "normal"
        fab:fab_labelStyle="@style/menu_labels_style"
        fab:fab_labelsPosition="left"
        app:layout_anchor="@id/viewpager"
        app:layout_anchorGravity="bottom|end">

        <com.getbase.floatingactionbutton.FloatingActionButton
            android:id="@+id/createPlanBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            fab:fab_colorNormal="@color/blood_orange"
            fab:fab_title="Create a plan"
            fab:fab_size="normal"
            app:fab_icon="@drawable/ic_event_white_48dp"
            fab:fab_colorPressed="@color/dirtyWhite"/>

        <com.getbase.floatingactionbutton.FloatingActionButton
            android:id="@+id/changeStatusBtn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            fab:fab_colorNormal="@color/blood_orange"
            fab:fab_size="normal"
            app:fab_icon="@drawable/ic_textsms_white_48dp"
            fab:fab_title="Change status"
            fab:fab_colorPressed="@color/dirtyWhite"/>

    </com.getbase.floatingactionbutton.FloatingActionsMenu>

    </android.support.design.widget.CoordinatorLayout>

这是包含recyclerview布局的片段:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:orientation="vertical"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
            android:background="@color/tab_bg">

<android.support.v7.widget.RecyclerView
    android:id="@+id/FeedCardViewList"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clipToPadding="true"
    xmlns:android="http://schemas.android.com/apk/res/android"/>

</RelativeLayout>

content_main布局:

<RelativeLayout
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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".UI.MainActivity"
tools:showIn="@layout/activity_main"
app:layout_behavior="@string/appbar_scrolling_view_behavior">


</RelativeLayout>

解决方法

今天遇到了这个问题.我不确定我是否在某种程度上错过了某些内容错误地实现了CoordinatorLayout,或者它是否是一个错误.但是如果有人仍然遇到这个问题,我会通过根据应用栏的高度调整工具栏下方内容的边距来以编程方式解决它.这里是:

布局XML:

<android.support.design.widget.CoordinatorLayout
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.support.design.widget.AppBarLayout
        android:id="@+id/app_bar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

            ...collapsing toolbar content...

        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>

    <FrameLayout
        android:id="@+id/content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        ...content beneath toolbar...

    </FrameLayout>

</android.support.design.widget.CoordinatorLayout>

代码(在布局后膨胀):

AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.app_bar);
CollapsingToolbarLayout collapsingToolbarLayout = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
FrameLayout contentLayout = (FrameLayout) view.findViewById(R.id.content);
appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {

    @Override
    public void onOffsetChanged(AppBarLayout appBarLayout,int verticalOffset) {
        ViewGroup.MarginLayoutParams layoutParams = (ViewGroup.MarginLayoutParams) contentLayout.getLayoutParams();
        layoutParams.setMargins(0,appBarLayout.getMeasuredHeight() + verticalOffset);
        contentLayout.requestLayout();
    }

});
原文链接:https://www.f2er.com/android/315921.html

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