设置layout_scrollFlags时，Android工具栏不会隐藏

Question

I am test android.support.design library,but I have this problem.Please look at follow pictures first.

click the link view the picture:

click the link view the picture:

You can see it,the toolbar doesn't hide at the back of the status bar.My layout is follow:

<android.support.design.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=".SettingActivity">

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

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

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

<android.support.v7.widget.RecyclerView
    android:id="@+id/list"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />

<android.support.design.widget.FloatingActionButton
    android:id="@+id/action_btn"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|end"
    android:layout_margin="10dp"
    android:src="@android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>

Can anybody give me some suggestion?

Answer 1

Finally, I solve the problem. My material test project is create base on the Android Studio IDE default settings. So I check the values-v21/styles.xml file. It has a default item <item name="android:statusBarColor">@android:color/transparent</item> . It works fine after I delete the item.

Answer 2

Try doing following changes:

1) Remove android:fitsSystemWindows="true" from coordinator layout.

2) Cut android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" from AppBarLayout and paste it inside Toolbar

Answer 3

@user5549139 I had the same problem. You shouldn't have deleted

<item name="android:statusBarColor">@android:color/transparent</item>

It gives you transparent statusBar wchich is coherent with material design.

My problem was that CordinatorLayout with android:fitsSystemWindows="true" was included as a child into DrawerLayout which also had android:fitsSystemWindows="true" . I removed android:fitsSystemWindows="true" from nested (included) CoordinatorLayout and hiding toolbar started to work correctly. I think you have to remove it from Toolbar.