折叠Appbarlayout后，工具栏与tablayout重叠

Question

我正在努力折叠工具栏布局，我在导航抽屉里面集成它在第一个片段里面正常工作我滚动折叠工具栏到顶部之后我打开第二个片段工具栏重叠有了tablayout，我不知道发生了什么事我总是检查过。

代码：

 private void setToolbarPin(Toolbar toolbar)
    {
        ViewGroup.LayoutParams params = toolbar.getLayoutParams();
        CollapsingToolbarLayout.LayoutParams newParams;
        if (params instanceof CollapsingToolbarLayout.LayoutParams) {
            newParams = (CollapsingToolbarLayout.LayoutParams)params;
        } else {
            newParams = new CollapsingToolbarLayout.LayoutParams(params);
        }
        newParams.setCollapseMode(CollapsingToolbarLayout.LayoutParams.COLLAPSE_MODE_OFF);
        toolbar.setLayoutParams(newParams);




      //  toolbar.requestLayout();

    }

<?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"
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

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

        <android.support.design.widget.CollapsingToolbarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/collapsing_toolbar"
            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap"
            android:fitsSystemWindows="true"
            >
            <View
                android:id="@+id/customView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:layout_collapseMode="parallax"
                ></View>
            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                app:layout_behavior="@string/appbar_scrolling_view_behavior"
                android:layout_height="?attr/actionBarSize"
                android:background="?attr/colorPrimary"
                app:layout_collapseMode="pin"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                app:layout_scrollFlags="scroll|enterAlways|snap"
                />

            <android.support.design.widget.TabLayout
                android:id="@+id/tabs"
                app:layout_behavior="@string/appbar_scrolling_view_behavior"
                android:paddingTop="?attr/actionBarSize"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="bottom"
                />

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



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

    <FrameLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        >


    </FrameLayout>


    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:layout_margin="@dimen/fab_margin"
        android:src="@drawable/ic_done" />

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