嵌套坐标布局和fitsSystemWindows重叠状态栏

Question

以下是我的Main活动的 xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical">

<android.support.design.widget.CoordinatorLayout
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">


    <android.support.design.widget.BottomNavigationView
        android:id="@+id/navigation"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        android:background="@color/bottom_nav_view_color"
        app:itemIconTint="@color/bottom_nav_view_icon_tint_selector"
        app:itemTextColor="@color/bottom_nav_view_text_color"
        app:menu="@menu/navigation" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_marginBottom="70dp"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="10dp"
        app:srcCompat="@drawable/ic_assist_icon" />
</android.support.design.widget.CoordinatorLayout>


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

以下是Home片段的 xml代码

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:card_view="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical">

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="245dp"
    android:background="@android:color/transparent"
    android:fitsSystemWindows="true"
    app:layout_behavior="com.gmr.android.FixAppBarLayoutBehavior">

    <android.support.design.widget.CollapsingToolbarLayout
        android:id="@+id/collapsing"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true"
        app:contentScrim="@color/card_dark_text"
        app:layout_scrollFlags="scroll|exitUntilCollapsed"
        app:titleEnabled="false">


        <ImageView
            android:id="@+id/imgAirportBg"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true"
            android:scaleType="centerCrop"
            android:src="@drawable/screen_bg"
            android:tint="#8a000000"
            android:visibility="visible"
            app:layout_collapseMode="parallax" />


        <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
            xmlns:app="http://schemas.android.com/apk/res-auto"
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:elevation="2dp"
            app:contentInsetLeft="0dp"
            app:contentInsetStart="0dp"
            app:title="@string/empty"
            app:contentInsetStartWithNavigation="0dp"
            app:layout_behavior=".view.ToolbarBackgroundAlphaBehavior"
            app:layout_collapseMode="pin"
            app:logo="@drawable/toolbar_logo"
            app:navigationIcon="?attr/homeAsUpIndicator"
            app:theme="@style/TransperantToolbar" />

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


<android.support.v7.widget.RecyclerView
    android:id="@+id/home_recyclerview"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clipToPadding="false"
    android:descendantFocusability="beforeDescendants"
    android:focusable="true"
    android:focusableInTouchMode="true"
    android:layoutAnimation="@anim/layout_animation_recycler_slide_in"
    android:paddingBottom="?attr/actionBarSize"
    app:behavior_overlapTop="40dp"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />

以下是Detail片段的 xml代码

<?xml version="1.0" encoding="utf-8"?>
 <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:card_view="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:orientation="vertical">

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="245dp"
    android:background="@android:color/transparent"
    android:fitsSystemWindows="true"
    app:layout_behavior="com.gmr.android.FixAppBarLayoutBehavior">

    <android.support.design.widget.CollapsingToolbarLayout
        android:id="@+id/collapsing"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:contentScrim="@color/card_dark_text"
        app:layout_scrollFlags="scroll|exitUntilCollapsed"
        app:titleEnabled="false">


        <ImageView
            android:id="@+id/imgStoreBg"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true"
            android:scaleType="centerCrop"
            android:src="@drawable/screen_bg"
            android:tint="#8a000000"
            android:visibility="visible"
            app:layout_collapseMode="parallax" />

        <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
            xmlns:app="http://schemas.android.com/apk/res-auto"
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:elevation="2dp"
            app:layout_behavior=".view.ToolbarBackgroundAlphaBehavior"
            app:layout_collapseMode="pin"
            app:navigationIcon="?attr/homeAsUpIndicator"
            app:theme="@style/TransperantToolbar" />

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


<android.support.v7.widget.RecyclerView
    android:id="@+id/home_recyclerview"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clipToPadding="false"
    android:descendantFocusability="beforeDescendants"
    android:focusable="true"
    android:focusableInTouchMode="true"
    android:layoutAnimation="@anim/layout_animation_recycler_slide_in"
    android:paddingBottom="?attr/actionBarSize"
    app:behavior_overlapTop="30dp"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />

现在,当我从Home Fragment调用Detail Fragement时,我的工具栏与状态栏重叠.如果我从任何其他片段调用Detail片段,它看起来很好.Home片段中的工具栏也不会与状态栏重叠,尽管Home片段和Detail片段的 xml 几乎相同.

图1显示了正常打开细节片段的时间

从主页打开细节片段时的图2

最新更新: 此解决方案正在帮助我https://medium.com/google-developers/windows-insets-fragment-transitions-9024b239a436但是有很多更改涉及到其他任何简短的方法吗？

Answer 1

您提到的症状与这个问题中提到的症状非常相似。回顾我在那里提供的答案，问题是，第一次显示片段时正在调度窗口插入，但下次进行片段事务时它们不会被调度。

您必须手动请求分派窗口插图才能接收正确的系统栏填充：

    private void replaceFragment() {
      getSupportFragmentManager().beginTransaction()
          .replace(R.id.content, new DetailFragment())
          // NOTE, we are performing `commitNow()` instead of ordinary `commit()`,
          // Because we want this commit to happen sychronously/immediately
          .commitNow();

      // Ask the framework to dispatch window insets once more to the root of your view hierarchy
      ViewCompat.requestApplyInsets(findViewById(R.id.root));
    }